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AYK REGION YUKON SALMON ESCAPEMENT REPORT _30
ANVIK AND ANDREAFSKY RIVER SALMON STUDIES 1986
La~ence S ampuk~~a A~aaka Dapartaent opound F~ah and Geae
Diviaion opound Cobullaercia~ Fiaheriaa Anchorage Alaska
Daemaber 1986
TABLE OF CONTENTS
LIST OF TABLES LIST OF FIGURES bullbullbullbullbullbullbullbullmiddotmiddot~middotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbulliii
LIST OF APPENDICES INTRODUCTION AHVIK RIVER SALMON STUDY
Methods and Nater1a~a Reau~tbull and Diacuaa1on
ANDREAFSKY RIVER SALMON STUDY
Methodbull and Materia~bull Reau~ta and Diacuaaion
CONCLUSIONS AND RECOMMENDATIONS LITERATURE CITED APPENDICES ~
i
Yi
1
3
19
23 24
35
39
40
LIST OF TABLES
1 Anvik River auaaer chubull aa~aon sonar countbull by date 1986 bull bull bull bull bull bull bull bull bull a bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull a bull bull bull bull bull bull 10
2 Oaci~~ocope and viaual calibration opound salmon aonar counta at the Anvik River weat bank site 1986 bullbullbullbullbullbullbull 15
3 Oaci~loacopa and viaua~ calibration opound aalaon sonar counta at the Anvik River east bank aite 1986 bullbullbullbullbullbullbull 16
4 Eaat Fork Andreapoundaky River expanded tower counta opound aalaon eacapeaent by apeciea and date 1986 bullbullbullbullbullbullbullbullbullbull 2
ii
LIST OF FIGURES
1 Xep opound the Yukon River showing poundiahing diatricta_ and MaJOr auabuller ~hua aa~aon spawning areaa bullbullbullbullbullbullbullbullbullbullbullbullbullmiddot 2
2 Map opound the Anvik River middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullmiddotbullbullbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 4
3 Map opound tha Anvik River aonar site and river depth propoundi~ea aa aeaaured on 23 3una 1986 poundor the waat and on 2~ 3una 1986 poundor the aaat bank Shaded areas ahow approxibullate range opound inaonipoundication on theae dataa weirbull are indicated with croaa hatching Unaqua~ acale opound the axaa diatorta the presentation bullbullbull 7
4 Air temperatura ltdaily ainiaua and aaxiaua) w_ater t peratura and ra~ative water depth aeaaurad at noon dei~y at tha Anvik River sonar aite 1986 bullbullbullbullbullbullbullbull 9
5 Anvik River auaaer chua aalaon aonar eounta by day 1979-1986 Mean date opound run paaaage ltcalculated with Day 1 bull 16 3unegt ia indicated by amphaded bar and standard daviation ltSDgt opound the aaan ia given bullbullbullbullbullbullbullbullbullbull 11
6 Anvik River auaaar chua aelaon aacapaaent aatiaated by coabinad tower and aerial aurvay counta1972-1978 and by aida-acanning aonar 1979-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 13
7 Anv~k River bulluaaer chua aalaon sonar counta by hour opound the day poundor tha early lt2~-29 3unagt aidd~e lt30 June - 7 Julygt and latbull lt8-15 3ulygt portion opound the aaaaon and poundor the entire 1986 aeaaon eobullbined Total sonar counts ltngt used poundor thia analyeia are given poundor each period bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 17
a Anvik River auaaer chua aalaon_ aonar counta by sonar aeetor poundor the early lt21-29 Junbullgtbull bulliddle (30 June -7 3u~y) end la~e lt8-15 July) portion opound the season and poundor the entire 1986 aeeaon coabinad Sector 1 ia weet bank sector 1 12 ia weat bank sector 12 13 ia east bank sector 12 and 24 ia eeet bank sector 1 Total aonar counta ltngt uaed poundor thia analyaia are given poundor each period bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull ~8
9 Age and aex composition opound Anvik River auaaer chua aa~aon 1972-1986 preaented aa proportion opound tote~ aaaple poundor each year by age e~aaa Nota dipoundpounderant aca~bull poundor age 6 middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 20
iii
LIST OF FIGURES ltCONTINUEDgt
10 Age and aex cOJDpoaition opound Anvik River chinook aalbullon 1972-1986 preaentad aa proportion opound tote~
aaapla poundor each year by age c1aaa Notbull dipoundpounderant aca~e poundor age 7 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 21
11 Map opound the Andreapoundaky River end opound the tower aita ltinat) located at river ai~bull 20 opound the Eaat Fork bullbullbullbullbull 22
12 River depth propoundilea opound the Eaat Fork Andreepoundaky River tower aita aa aeaaurad on 19 3une and 10 July 1986 Croaa hatching indicates waira Unequal scala opound the axa distorta the praaentation bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 25
13 Air temperature ltdaily ainiaum and aaxiauagt water teaperature and relative water depth aaaaured at noon daily at the Eaat Fork Andreapoundaky River tower ai te 1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 26
14 Eaat Fork Andreapoundaky River aumer chua aalaon sonar or tower counts by day 1981-1986 Mean data opound run paaaage ltcalculated with Day 1 = 16 3une) indicated by ahaded bar and standard deviation ltSOgt opound the mean ia given bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 29
15 ampaat Fork Andreefeky River auaaer chwa aelbullon eacapeshyaent ea eat~bullatad by aerial survey ~92-1980 and 198S by aide-acanning aonar 1981-1984 and by tower countbull 1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 30
16 Cuaulat~ve proportion opound aeaaon tote~ subullbuller chubull chinook and pink aalaon tower counts by date at tha Eaat Fork Andreapoundaky River 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 31
17 Distribution opound auaaer chua chinook and pink aalaon tower counta by hour opound the day poundor the Eaat Fork Andreapoundaky River 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 33
18 Age and aex coapoaition opound Eaat Fork Andreapoundaky River auaaer chua aalaon1981-1986 preaented aa proportion opound total sample poundor each year by age claaa Note dipoundpounderent acale -poundor agea 3 and 6 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 34
19 Age and aax compoaition opound Andreapoundaky River chinook aalbullon 1981-1986 presented as proportion opound total aabullple poundor each year by age claaa Note dipoundpounderent acale poundor age 7 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 36
iv
LIST OF FIGURES ltCONTINUEDgt
20 Run tibullining opound Yukon River auaaar chua aa~aon in 1986 aa indicated by catchea aonar counts or tower eounta at poundour aitea Mean date opound run paaaage ia indicated by ahaded bar and atandard deviation ltSDgt opound the mean ia given bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullmiddotbullmiddotbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 37
v
Appendix ~~~
LIST OF APPENDICES
1 Anvik River aalbullon beach aeine catch by apeciea~ aex and date 1986 bullmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullbullbullbullbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbull 40
2 Age and bullbullx capoaition opound Anvik River auamar chua aalaon eacapement bull-plea ~ 1972-1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 41
3 Age and aex coapoaition opound Anvik River chinook aalaon aacapeaent aaaplea 1972-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 42
4 Eaat Fork Andraapoundaky River auaaer chua aalaon tower counta by hour and date 1986 with count eatiaation poundorbullulea derived poundrobull the data poundor bulliaaing t ibullbull blocka bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 43
5 Eeat Fork Andreepoundaky River chinook salmon tower counta by hour and date 1986 with count eatibullation poundorbullu~aa derived poundrobull the data poundor bulliaaing time blocks bullbullbullbullbullbullbullbull 44
6 Eaat Fork Andreapoundaky River pink aalaon tower counta by hour and date 1986 with count estiMation poundoraulaa derived poundrobull theae data poundor aiaaing t~ae b~ocka bullbullbullbullbullbullbullbull 45
7 Eaat Fork Andreapoundaky River aalaon beech bullbull~na catch by apeciea x end date 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 46
a Age and aex coapoeition opound Eaat Fork Andreapoundaky River au ar chua aalbullon eacapaaent aabullplea 1981-1986 bullbullbullbullbullbullbull 47
9 Age end aex coapoaition opound Andreapoundaky River ch~nook
aalaon eacapebullent aaaplea 1981-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 48
vi
rNTRODUCTION
The Anvik and Andreafaky Rivera are the two la~geet producers opound eumaer chua aalaon ltQ~pound~~~~~gbY ~~~~) in the Yukon River dra~nage ltFigure 1gt Buklia lt1982) eatiaetad that the Anvik River alone acoounta poundor 3~ opound the total production Other _ kno~n maJor spawning populations occur in the Redo Nulato Giaaaa Hogatza Melozitna Tozitna Chene and Salcha Rivra Suamer chua salmon spawn in leaaer nuabara in other tributariea opound the Yukon River Chinook ltQ~ ~~~~y~~~~gt and pink ltQ~ 92~~~~~~) aelaon occur in the Anvik and Andreapoundsky Rivera coincidentally with auaae~ chua aelbullon while coho aalaon ltQ~ ~~~~~=~gt are known to occur in smell nuabera in the poundall but their abundance ia not aonitored
Coaaerc~al and aubaistence poundiaheriea that harveat Anvik and Andreapoundaky River auaaer chua aelaon occur throughout tha aainatea Yukon River poundrca the coaat opound the delta to the aoutha opound the respective tributary atraaaa Set and dripoundt gillnets are the legal poundiahing gear in Districts 1 2 and 3 whi~bull aat gil~neta and poundiahwbeela aay be uaad in District 4 Moat opound the epoundpoundort and harvest occurs in Diatricta 1 and 2 and in the lower po~tion opound District 4 near the Anvik River Fiah taken coamercially in the lower three diatricta are poundrash poundrozen while District 4 ia a roe poundiahery due to aarket conditions and pound~eah quality Coamercial and aubaiatence auamer chua aa~aon poundiaher~bullbull in the reaainder opound District 4 end in District 6 are supported by atocka other than thoae opound tha Andreapoundaky and Anvik Rivera Very poundew auaaer chua salaon are harveated in Diatrict S due to the lack of significant apawning populat~ona in that portion opound the drainage Thera are no acale pattern electrophoretic o~ mark-recapture stock 1dentipoundication data availab~e on Yukon River suaaer chua ae~aon
Ch~nook aalaon are tbe target apeciea of the ~o~r Yukon River ltDiatricta 1 2 and 3gt coaaercial poundiahery during 3une and early July Fiahing ia uaually peraitted with unreatricted aeah aize gillnata until changeover to 6 inch aexiaua aeah aize is required by Eaergency Order In aoat years tha aaJOrity opound the auaaer chum aalaon run haa paaaed through the lower river districts before the changeover to chua aalaon gear Aa a result moat opound the aubullaer chubull aalaon coaaerc~a~ harvest in the lower Yukon ia uauelly taken poundroa tha later portion opound the run
The Board opound Fieber~bullbull directed that beginning with the 1985 aeaaon there aay be apecial saall aeah gear openninga dur1ng the chinook aalaon aeaaon to opt~aize harvest opound suaaer chua aalaon Thie would require that a relatively large auaaer chua aalaon run ia in progress and that the incidental harvest opound chinook aa~aon would not ba aubatential enough to have an adverse apoundpoundect on the aenagaaent opound that species Theae criteria ware JUdged to have baan bullbullt in 1986 and special restricted lt6 maxiauagt aeah size poundiahing parioda were aatabliahed in the lower river coaaercial
1
Hogatza R
334-40
=middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot~ middotmiddotmiddot-middot-middot middot-middotmiddot~
Fishing District Boundaries
Major St1IIIrer Chum Salmgtn Spawning Areas
Figure middot1 Map of the Yukon River showing fishing districts and major summer chum salmon spawning areas
fiahery dUr~ng the chinook aa1mon aeaaon coaaercial poundiahery ia directed priaarily Subaiatence poundiaheriea in all poundour dmiddotiatrtcta aelaon primiddotaarily poundor sled dog poundood
The District 4 at chua aalaon take auaaer chua
Suaaer chuM aalaon eacapeaenta to the aaJor spawning areaa in the Yukon River drainage have been estimated by aerial survey poundrom fixed wing aircrapoundt on a conaiatant beaia since the early 1970~a Aerial surveys are aub)ect to error and variability due to weather and atraaa conditionbull~ tiaing opound the aurvey_relative to apewning stage and aubJectivity and experience on the part opound the observer The counta obteined are on1y indicea opound abundance ainca not all aalaon pre nt on the day opound the survey are uaually sean and earlier and later apawnera are not present However tbaaa indices if obtained under standardized conditions can be uaed to aonitor the relative abundance of spawning aacapeaenta Aerial aurveya ara the aoat poundeaaible aethod opound aeeeasing salmon bullbullcapeaenta in terme of coat and atepoundpound 1~a~tationa ~n a watershed as i-enae and reaote bullbull that opound the Yukon River
The Alaska Departaent of Fiah _and Gaae ltADFampGgt baa continued the aerial survey prograa while intensively studying a few iaportant and representative tributary streea aa1aon apawning populet~ona The Anvik and Andreepoundaky Rivera have been choaen for auaaer chum aalaon reaearch studies Thia report preaenta reaulta opound these atudiea poundor the 1986 poundiald aeaaon and prov~dea recoaaendations for 1987 proJect operations
ANVIK RIVER SALMON STUDY
The Anvik River ltFigura 2) originates at an elevation opound ~300
feat and pound1owa in a southerly direction epproxiaately 120 ailea to ~ta aouth at aile 318 opound the Yukon River It ia a narrow runopoundpound atreaa with a auoatrate opound gravel and cobb1e except in tha upper reach where bedrock 1a exposed The Ve1low River ~ a aaJor tributary opound the Anvik and ia stained with tannic acid runepoundpound Downatreaa opound the Yellow River conpoundluence the Anvik R~ver changea poundroa a aoderate gradient ayatea to a low gradient ayatea aaandering through a auch broader poundlood plain Water clarity ~a
reduced downatreabull of the Yellow River Huaaroue oxoowa_ old channel cutopoundpounda and alougha are poundound throughout the lower river
Salaon eacapeaent waa enuaerated poundrca counting towera located above the Ye~low River poundroa 1972 to 1978 A aite S-112 ailea above the Vbullllow River waa uaed frobull 1972 to 197~ and a aite at Robinhood Creek 2-112 ailea above the Yellow River_ was used froa 1976 to 1978 Aerial aurveya werbull poundlown each year ltexcept 19741 in poundixed-wing aircraft to eatiaate aalbullon abundance below the tower aite High and turb~d water opoundten epoundpoundecta the accuracy opound viaual aalaon enuaeration froa counting towers and a~rcrapoundt
The Electrodynaaica Diviaion opound the Bendix Corporation developed
3
bull bull
4
s w gt - c ~ gt pound lt Ql ~
+J
0
0 lttl
N
Ql $ I en
a aide-scanning sonar counter during the 1970s capab~e opound detacting and counting aa~aon aigrating a~ong the banks opound tributary streaaa The sonar counter ia designed to transMit a sonic beaa a~ong bull 60 poundoot aluminua tube~ or substrata Echoes poundrobull aa~aon paaaing through the beebull are repoundlected back to the transducer The systea electronicamp interpret the strength and nuaber opound the echoea and tally aalaon counta Criteria poundor strength and poundrequency opound the echoes ere designed to optiD~ze
counting opound aelaon and ainiaize any non-salmon counts ltie debris or other poundiah epecieal SalMon eacapaaent was enuaerated by aonar beginning in 1979~ rep~acing and proving superior to the tower counting aathod One sonar counter has been installed on each bank os the Anvik River near Theodore Creek each year Aerial survey data indicates that virtually all suaaer chua salmon spawnerbull are poundound upatreaa opound this site
Methods and Materials
Two 1978 Model aonar counters were operated without art1poundicia~
aluainua substrate tubea throughout the season poundor the second consecutive year Each sonar transducer was aounted on a ~ectangular aluainubull poundraaa The eaat and weat bank sites used in previous yaera were probed to locate unipoundora river bottoa gradients that would provide optiaua aurpoundaees poundor insonipoundication Two ateei pipes were aet into the river bottoa on each aide opound the river onto which the transducer poundraaea were guided by aide aounted ateei sleeves Counting rangea were set such that the entire width opound the river was inaonipoundied Weirs prevented salmon peaaage inahore opound the transducer on each banmiddotk Transducers were eoved inahora or opoundpoundahore as required by poundluctuating water lavela
Sonar counts were totaled electronically in twelve sectors poundor each bank and printed hourly Sector counts missing as a result opound debris or printer aa~poundunction were eatiaated by averag1ng the counta in tbe aaaa sector poundor the hour bepoundore and apoundter the sector count in queation Counts ware totaled daily poundor each bank uaing an e~ectronic calculator and the eeat and weat bank totala auaaed to obtain a daily eacapement estimate Since summer chum aalaon greatly outnuaber chinookbull and pinka and the counters do not diatingu~ah between apec~es opound aalaon~ all aonar counts were attributed to auaaer chua salaon A separate eacapament estibullste poundor chinook aalbullon waa obtained by aerial survey
Each sonar counter waa calibrated poundour tiaes daily by obaerv~ng
poundiah paaaage with an oscilloscope poundor a 15 ainute period Salmon paaaing through tha aonar beaa produce a distinct oscilloecope trace Sonar and oacilloscope counts poundor each calibration period were related in the oraula Q=SSSC~ where SS = aide acan sonar counta an~ SC bull oacilloacope counta The existing poundiah velocity bullbulltting waa aultiplied by Q to obtain tbe correct new setting ipound the dispounderence between the counts waa greater than 15~ The ayatea waa then recalibrated at the new setting A record waa kept opound all adJuatmenta to the sonar equipment Fish peaaage was
5
viauelly enuaereted poundrobull ~0 poundt counting towers during sonar calibration ~ioda as a poundurther check on aonar accuracy whenever water and light cond~tiona allowed Polaroid sunglaaaea were worn to reduce water aurpoundace glare
Daily sonar counts were adJusted apoundter the poundield aeason baaed on the calibration date The daily adJUStment poundactor ia the sua opound calibrat~on oscilloscope counts poundor that day divided by the aua opound cel~bration aoner counts poundor tnat day Deily aonar counts were aultiplied by the daily adJuatent poundactor to obtain corrected daily sonar counta Mean and standard deviation opound date opound paaaage were calculated poundollowing the aethod presented by Mundy (1982)
Water depth propoundile at the sonar aite waa aeoaured at 3 a intervals across the width opound the river by probing with a pole aarked in 1 em incrementa Clibullatological data were collected at noon each day at the caapsite A pole aarked 1n 1 ca increaents waa aat in the river Changes in water depth are presented as negative or positive poundroa the initial reading opound 0 em Water teaperature waa aaaaurad in degreea centigrade near shore at a depth opound about 05 bullmiddot Daily aex~aua and miniaua air temperatures were recorded in degrees centigrade SubJective notes were kept by the crew describing wind speed end direction cloud cover and precipitation
A beach seine lt100 poundt long GG aeahaa deep 2-112 in aeah) was set near the aonar aita to capture chua and chinook aalaon poundor ega bullbullx~ and aize aeaaurebullenta Chua and chinook salmon were placed in a holding pen identipoundiad by sex measured poundroa mid-eye to poundark opound tail in bullbullbull and ona scale wea taken poundor age deteraination Scales were reaoved poundroa en area posterior to the baaa opound the dorsal poundin and above the lateral line on the lepoundt aide opound the poundiah The adipoae poundin was clipped on each poundiah bepoundore release to prevent reaaapling Chinook salmon carcaaaea were aaapled in Auguat to auppleaant the beach seine saaple Three acalea were taken poundroa each carcass Scale aamplaa were later pressed on acetate carda and the resulting impressions viewed on a aicropoundiche reader poundor age deteraination
Reaulta and Diacuaaion
Two aonar counterbull ware operated poundroa 21 June through 15 July at approx~aately the aaae aitea used in previous yeara ltFigure 3gt The east bank transducer waa located along a cutbank 37 bull opoundpoundahore and at a depth opound 87 em The west bank transducer was located along a gradually aloping gravel bar approxibullately 60 bull downatreaa poundroa the aaat bank aite The transducer was 152 m opoundpoundahora and at a depth opound 61 ca The entire width opound the river between the tranaducera was insonipound1ad River bottobull gradient was aaooth with no obatructiona to the sonar beaa and bullaximua depth waa 149 ca ea aeaaured on 23 3une ltFigure 3)
River water level waa opound noraal height poundor the time opound year when
6
Eaat Bank
Wea-t Bank
Figure 3 Map of the Anvik River sonar site and river depth profiles as measured on 23 June 1986 for the west bank and on 25 June 1986 for the east bank Shaded areas show approximate range of insonification on these dates weirs are indicated with cross hatching Unequal scale of the axes distorts the presentation
7
the crew arr1ved to begin proJect operations Below average anowpack in the drainage and below average rainpoundall in the spring and ear~y auaaer resulted in steadily declining water levels throughout aonar proJect operation-CFigure 4) Moderate increases in water level on 22 and 27 June were due to pulses opound high water in the Yukon River poundroa heavy rainpoundall in the upper portion opound the Yukon River drainage These pulabullbull opound high water had the epoundfect opound backing up the discharge opound water poundroa the Anvik River drainage Water taaperatura ranged poundroa a low opound 9 C on 26 3une to a high opound ~8 C on 5 3uly while air teaperatura ranged poundroa a low daily ainiaua opound 2 c on 14 3uly to a high daily aaxiaua opound 29 C on 4 July
Sonar anubulleration waa scheduled to continue until 28 July ipound neceaaary but eaergency budget reductiona resulted in teraination opound counting on 15 July Signipoundicant numberbull opound poundish were still being counted at that tiae The adJusted escapement count poundor the period 21 June through ~5 3uly waa 1085750 suaaer chua aa~aon ltTable 1gt A peak adJusted daily count opound 117778 poundish occurred on 30 June which repreaented 108~ opound the total aaaaon sonar count Escapeaent tiaing appeared to be relatively early aa it had been in 1979 198~ and 1983 CFigure 5) Mean date opound run paasege waa 3 July with a standard deviation opound 505 daya The caleulated aean and standard deviation are apoundpoundected by premature termination opound the pro)ect
The cuaulative bullbullcapeaent count for the period 21 June through 15 July opound 1085750 auaaer ehua salaon can be expanded to a total season eacapeaent estimate baaed on historical eacapeent tiaing petterna An average opound 873~ opound the total aeaaon sonar count occurred apoundter 15 July poundor previous years lt1979 1981 and 1963gt with an early tiaing pattern aoat aiailar to that opound 1986 Applying this axpanaion poundactor results in a total seaaon eacapeent eatiaate opound ~189602 auaaer chua aalaon poundor 1986
Historical eacapeaent tiaing patterns were uaed on an in-aeason baaia to proJeet the poundinal eacapeaent eatiaate poundor poundiahery aanagebullent purpoaes Sonar counts poundor the period 21-29 June input into the average tiaing curve poundor an early escapement timing pattern (baaed on 1979 1981 and 1983gt resulted in e proJect~on os 1291000 auaae~ chua aalaon This waa w~thin 9~ opound the actue~ poundinal eacepeaent eatiaata opound 1189602 poundiah
Buk~ia (19$2) expanded the aeason eacapeaent eatimatea poundo~ ~972
through 1978 aak1ng it poaaible to aore directly compare viaual count eatiaatea pound~obull thoae yaara with the aore recent aonar count eatiaatee ltFigure 6) The 1986 eacapeaent eatiaate opound 1189602 auaaar chua aa~aon waa second only to the ~981 eacapeaent opound nearly 13 ail~ion poundiah waa 24 tiaaa greater than the eacapeaant obJective opound 487000 poundiah ltADFG 1985gt and was 20 tiaea greater than the long tera lt1972-1985gt average opound 587714 poundish
A total opound 2423 houra opound aonar calibration waa conducted over a 25 day period at the weat bank aite and sonar accuracy ltsonar
8
I I
I I
1 986 MINMAX AIR TEMPERATURE 30 u 28
2-4
22
20
18 1a
10
bull bull 2
0 111-lt1 2-tun Oa-Jwl
a UINIMUM
1 986 WATER TEMPERATURE
~~----------------------------------------- 1 13 11 10
bull a 7
bull
n 1~IUI
bull I I bull
21a-Jun
1986 RELATIVE WATER DEPTH
0~~----------------------------------------
-10
-20
I =~ -bulloj -10-
-80+-~middot~bull-rbull~~~~middot~middot-middot~middot~middot~~middot~middot~~middot~middotmiddotbull-rbull~middot~~~~~ 18-Jun
Figure 4 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the Anvik River sonar site 1986
9
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
TABLE OF CONTENTS
LIST OF TABLES LIST OF FIGURES bullbullbullbullbullbullbullbullmiddotmiddot~middotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbulliii
LIST OF APPENDICES INTRODUCTION AHVIK RIVER SALMON STUDY
Methods and Nater1a~a Reau~tbull and Diacuaa1on
ANDREAFSKY RIVER SALMON STUDY
Methodbull and Materia~bull Reau~ta and Diacuaaion
CONCLUSIONS AND RECOMMENDATIONS LITERATURE CITED APPENDICES ~
i
Yi
1
3
19
23 24
35
39
40
LIST OF TABLES
1 Anvik River auaaer chubull aa~aon sonar countbull by date 1986 bull bull bull bull bull bull bull bull bull a bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull a bull bull bull bull bull bull 10
2 Oaci~~ocope and viaual calibration opound salmon aonar counta at the Anvik River weat bank site 1986 bullbullbullbullbullbullbull 15
3 Oaci~loacopa and viaua~ calibration opound aalaon sonar counta at the Anvik River east bank aite 1986 bullbullbullbullbullbullbull 16
4 Eaat Fork Andreapoundaky River expanded tower counta opound aalaon eacapeaent by apeciea and date 1986 bullbullbullbullbullbullbullbullbullbull 2
ii
LIST OF FIGURES
1 Xep opound the Yukon River showing poundiahing diatricta_ and MaJOr auabuller ~hua aa~aon spawning areaa bullbullbullbullbullbullbullbullbullbullbullbullbullmiddot 2
2 Map opound the Anvik River middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullmiddotbullbullbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 4
3 Map opound tha Anvik River aonar site and river depth propoundi~ea aa aeaaured on 23 3una 1986 poundor the waat and on 2~ 3una 1986 poundor the aaat bank Shaded areas ahow approxibullate range opound inaonipoundication on theae dataa weirbull are indicated with croaa hatching Unaqua~ acale opound the axaa diatorta the presentation bullbullbull 7
4 Air temperatura ltdaily ainiaua and aaxiaua) w_ater t peratura and ra~ative water depth aeaaurad at noon dei~y at tha Anvik River sonar aite 1986 bullbullbullbullbullbullbullbull 9
5 Anvik River auaaer chua aalaon aonar eounta by day 1979-1986 Mean date opound run paaaage ltcalculated with Day 1 bull 16 3unegt ia indicated by amphaded bar and standard daviation ltSDgt opound the aaan ia given bullbullbullbullbullbullbullbullbullbull 11
6 Anvik River auaaar chua aelaon aacapaaent aatiaated by coabinad tower and aerial aurvay counta1972-1978 and by aida-acanning aonar 1979-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 13
7 Anv~k River bulluaaer chua aalaon sonar counta by hour opound the day poundor tha early lt2~-29 3unagt aidd~e lt30 June - 7 Julygt and latbull lt8-15 3ulygt portion opound the aaaaon and poundor the entire 1986 aeaaon eobullbined Total sonar counts ltngt used poundor thia analyeia are given poundor each period bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 17
a Anvik River auaaer chua aalaon_ aonar counta by sonar aeetor poundor the early lt21-29 Junbullgtbull bulliddle (30 June -7 3u~y) end la~e lt8-15 July) portion opound the season and poundor the entire 1986 aeeaon coabinad Sector 1 ia weet bank sector 1 12 ia weat bank sector 12 13 ia east bank sector 12 and 24 ia eeet bank sector 1 Total aonar counta ltngt uaed poundor thia analyaia are given poundor each period bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull ~8
9 Age and aex composition opound Anvik River auaaer chua aa~aon 1972-1986 preaented aa proportion opound tote~ aaaple poundor each year by age e~aaa Nota dipoundpounderant aca~bull poundor age 6 middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 20
iii
LIST OF FIGURES ltCONTINUEDgt
10 Age and aex cOJDpoaition opound Anvik River chinook aalbullon 1972-1986 preaentad aa proportion opound tote~
aaapla poundor each year by age c1aaa Notbull dipoundpounderant aca~e poundor age 7 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 21
11 Map opound the Andreapoundaky River end opound the tower aita ltinat) located at river ai~bull 20 opound the Eaat Fork bullbullbullbullbull 22
12 River depth propoundilea opound the Eaat Fork Andreepoundaky River tower aita aa aeaaurad on 19 3une and 10 July 1986 Croaa hatching indicates waira Unequal scala opound the axa distorta the praaentation bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 25
13 Air temperature ltdaily ainiaum and aaxiauagt water teaperature and relative water depth aaaaured at noon daily at the Eaat Fork Andreapoundaky River tower ai te 1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 26
14 Eaat Fork Andreapoundaky River aumer chua aalaon sonar or tower counts by day 1981-1986 Mean data opound run paaaage ltcalculated with Day 1 = 16 3une) indicated by ahaded bar and standard deviation ltSOgt opound the mean ia given bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 29
15 ampaat Fork Andreefeky River auaaer chwa aelbullon eacapeshyaent ea eat~bullatad by aerial survey ~92-1980 and 198S by aide-acanning aonar 1981-1984 and by tower countbull 1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 30
16 Cuaulat~ve proportion opound aeaaon tote~ subullbuller chubull chinook and pink aalaon tower counts by date at tha Eaat Fork Andreapoundaky River 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 31
17 Distribution opound auaaer chua chinook and pink aalaon tower counta by hour opound the day poundor the Eaat Fork Andreapoundaky River 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 33
18 Age and aex coapoaition opound Eaat Fork Andreapoundaky River auaaer chua aalaon1981-1986 preaented aa proportion opound total sample poundor each year by age claaa Note dipoundpounderent acale -poundor agea 3 and 6 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 34
19 Age and aax compoaition opound Andreapoundaky River chinook aalbullon 1981-1986 presented as proportion opound total aabullple poundor each year by age claaa Note dipoundpounderent acale poundor age 7 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 36
iv
LIST OF FIGURES ltCONTINUEDgt
20 Run tibullining opound Yukon River auaaar chua aa~aon in 1986 aa indicated by catchea aonar counts or tower eounta at poundour aitea Mean date opound run paaaage ia indicated by ahaded bar and atandard deviation ltSDgt opound the mean ia given bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullmiddotbullmiddotbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 37
v
Appendix ~~~
LIST OF APPENDICES
1 Anvik River aalbullon beach aeine catch by apeciea~ aex and date 1986 bullmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullbullbullbullbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbull 40
2 Age and bullbullx capoaition opound Anvik River auamar chua aalaon eacapement bull-plea ~ 1972-1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 41
3 Age and aex coapoaition opound Anvik River chinook aalaon aacapeaent aaaplea 1972-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 42
4 Eaat Fork Andraapoundaky River auaaer chua aalaon tower counta by hour and date 1986 with count eatiaation poundorbullulea derived poundrobull the data poundor bulliaaing t ibullbull blocka bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 43
5 Eeat Fork Andreepoundaky River chinook salmon tower counta by hour and date 1986 with count eatibullation poundorbullu~aa derived poundrobull the data poundor bulliaaing time blocks bullbullbullbullbullbullbullbull 44
6 Eaat Fork Andreapoundaky River pink aalaon tower counta by hour and date 1986 with count estiMation poundoraulaa derived poundrobull theae data poundor aiaaing t~ae b~ocka bullbullbullbullbullbullbullbull 45
7 Eaat Fork Andreapoundaky River aalaon beech bullbull~na catch by apeciea x end date 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 46
a Age and aex coapoeition opound Eaat Fork Andreapoundaky River au ar chua aalbullon eacapaaent aabullplea 1981-1986 bullbullbullbullbullbullbull 47
9 Age end aex coapoaition opound Andreapoundaky River ch~nook
aalaon eacapebullent aaaplea 1981-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 48
vi
rNTRODUCTION
The Anvik and Andreafaky Rivera are the two la~geet producers opound eumaer chua aalaon ltQ~pound~~~~~gbY ~~~~) in the Yukon River dra~nage ltFigure 1gt Buklia lt1982) eatiaetad that the Anvik River alone acoounta poundor 3~ opound the total production Other _ kno~n maJor spawning populations occur in the Redo Nulato Giaaaa Hogatza Melozitna Tozitna Chene and Salcha Rivra Suamer chua salmon spawn in leaaer nuabara in other tributariea opound the Yukon River Chinook ltQ~ ~~~~y~~~~gt and pink ltQ~ 92~~~~~~) aelaon occur in the Anvik and Andreapoundsky Rivera coincidentally with auaae~ chua aelbullon while coho aalaon ltQ~ ~~~~~=~gt are known to occur in smell nuabera in the poundall but their abundance ia not aonitored
Coaaerc~al and aubaistence poundiaheriea that harveat Anvik and Andreapoundaky River auaaer chua aelaon occur throughout tha aainatea Yukon River poundrca the coaat opound the delta to the aoutha opound the respective tributary atraaaa Set and dripoundt gillnets are the legal poundiahing gear in Districts 1 2 and 3 whi~bull aat gil~neta and poundiahwbeela aay be uaad in District 4 Moat opound the epoundpoundort and harvest occurs in Diatricta 1 and 2 and in the lower po~tion opound District 4 near the Anvik River Fiah taken coamercially in the lower three diatricta are poundrash poundrozen while District 4 ia a roe poundiahery due to aarket conditions and pound~eah quality Coamercial and aubaiatence auamer chua aa~aon poundiaher~bullbull in the reaainder opound District 4 end in District 6 are supported by atocka other than thoae opound tha Andreapoundaky and Anvik Rivera Very poundew auaaer chua salaon are harveated in Diatrict S due to the lack of significant apawning populat~ona in that portion opound the drainage Thera are no acale pattern electrophoretic o~ mark-recapture stock 1dentipoundication data availab~e on Yukon River suaaer chua ae~aon
Ch~nook aalaon are tbe target apeciea of the ~o~r Yukon River ltDiatricta 1 2 and 3gt coaaercial poundiahery during 3une and early July Fiahing ia uaually peraitted with unreatricted aeah aize gillnata until changeover to 6 inch aexiaua aeah aize is required by Eaergency Order In aoat years tha aaJOrity opound the auaaer chum aalaon run haa paaaed through the lower river districts before the changeover to chua aalaon gear Aa a result moat opound the aubullaer chubull aalaon coaaerc~a~ harvest in the lower Yukon ia uauelly taken poundroa tha later portion opound the run
The Board opound Fieber~bullbull directed that beginning with the 1985 aeaaon there aay be apecial saall aeah gear openninga dur1ng the chinook aalaon aeaaon to opt~aize harvest opound suaaer chua aalaon Thie would require that a relatively large auaaer chua aalaon run ia in progress and that the incidental harvest opound chinook aa~aon would not ba aubatential enough to have an adverse apoundpoundect on the aenagaaent opound that species Theae criteria ware JUdged to have baan bullbullt in 1986 and special restricted lt6 maxiauagt aeah size poundiahing parioda were aatabliahed in the lower river coaaercial
1
Hogatza R
334-40
=middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot~ middotmiddotmiddot-middot-middot middot-middotmiddot~
Fishing District Boundaries
Major St1IIIrer Chum Salmgtn Spawning Areas
Figure middot1 Map of the Yukon River showing fishing districts and major summer chum salmon spawning areas
fiahery dUr~ng the chinook aa1mon aeaaon coaaercial poundiahery ia directed priaarily Subaiatence poundiaheriea in all poundour dmiddotiatrtcta aelaon primiddotaarily poundor sled dog poundood
The District 4 at chua aalaon take auaaer chua
Suaaer chuM aalaon eacapeaenta to the aaJor spawning areaa in the Yukon River drainage have been estimated by aerial survey poundrom fixed wing aircrapoundt on a conaiatant beaia since the early 1970~a Aerial surveys are aub)ect to error and variability due to weather and atraaa conditionbull~ tiaing opound the aurvey_relative to apewning stage and aubJectivity and experience on the part opound the observer The counta obteined are on1y indicea opound abundance ainca not all aalaon pre nt on the day opound the survey are uaually sean and earlier and later apawnera are not present However tbaaa indices if obtained under standardized conditions can be uaed to aonitor the relative abundance of spawning aacapeaenta Aerial aurveya ara the aoat poundeaaible aethod opound aeeeasing salmon bullbullcapeaenta in terme of coat and atepoundpound 1~a~tationa ~n a watershed as i-enae and reaote bullbull that opound the Yukon River
The Alaska Departaent of Fiah _and Gaae ltADFampGgt baa continued the aerial survey prograa while intensively studying a few iaportant and representative tributary streea aa1aon apawning populet~ona The Anvik and Andreepoundaky Rivera have been choaen for auaaer chum aalaon reaearch studies Thia report preaenta reaulta opound these atudiea poundor the 1986 poundiald aeaaon and prov~dea recoaaendations for 1987 proJect operations
ANVIK RIVER SALMON STUDY
The Anvik River ltFigura 2) originates at an elevation opound ~300
feat and pound1owa in a southerly direction epproxiaately 120 ailea to ~ta aouth at aile 318 opound the Yukon River It ia a narrow runopoundpound atreaa with a auoatrate opound gravel and cobb1e except in tha upper reach where bedrock 1a exposed The Ve1low River ~ a aaJor tributary opound the Anvik and ia stained with tannic acid runepoundpound Downatreaa opound the Yellow River conpoundluence the Anvik R~ver changea poundroa a aoderate gradient ayatea to a low gradient ayatea aaandering through a auch broader poundlood plain Water clarity ~a
reduced downatreabull of the Yellow River Huaaroue oxoowa_ old channel cutopoundpounda and alougha are poundound throughout the lower river
Salaon eacapeaent waa enuaerated poundrca counting towera located above the Ye~low River poundroa 1972 to 1978 A aite S-112 ailea above the Vbullllow River waa uaed frobull 1972 to 197~ and a aite at Robinhood Creek 2-112 ailea above the Yellow River_ was used froa 1976 to 1978 Aerial aurveya werbull poundlown each year ltexcept 19741 in poundixed-wing aircraft to eatiaate aalbullon abundance below the tower aite High and turb~d water opoundten epoundpoundecta the accuracy opound viaual aalaon enuaeration froa counting towers and a~rcrapoundt
The Electrodynaaica Diviaion opound the Bendix Corporation developed
3
bull bull
4
s w gt - c ~ gt pound lt Ql ~
+J
0
0 lttl
N
Ql $ I en
a aide-scanning sonar counter during the 1970s capab~e opound detacting and counting aa~aon aigrating a~ong the banks opound tributary streaaa The sonar counter ia designed to transMit a sonic beaa a~ong bull 60 poundoot aluminua tube~ or substrata Echoes poundrobull aa~aon paaaing through the beebull are repoundlected back to the transducer The systea electronicamp interpret the strength and nuaber opound the echoea and tally aalaon counta Criteria poundor strength and poundrequency opound the echoes ere designed to optiD~ze
counting opound aelaon and ainiaize any non-salmon counts ltie debris or other poundiah epecieal SalMon eacapaaent was enuaerated by aonar beginning in 1979~ rep~acing and proving superior to the tower counting aathod One sonar counter has been installed on each bank os the Anvik River near Theodore Creek each year Aerial survey data indicates that virtually all suaaer chua salmon spawnerbull are poundound upatreaa opound this site
Methods and Materials
Two 1978 Model aonar counters were operated without art1poundicia~
aluainua substrate tubea throughout the season poundor the second consecutive year Each sonar transducer was aounted on a ~ectangular aluainubull poundraaa The eaat and weat bank sites used in previous yaera were probed to locate unipoundora river bottoa gradients that would provide optiaua aurpoundaees poundor insonipoundication Two ateei pipes were aet into the river bottoa on each aide opound the river onto which the transducer poundraaea were guided by aide aounted ateei sleeves Counting rangea were set such that the entire width opound the river was inaonipoundied Weirs prevented salmon peaaage inahore opound the transducer on each banmiddotk Transducers were eoved inahora or opoundpoundahore as required by poundluctuating water lavela
Sonar counts were totaled electronically in twelve sectors poundor each bank and printed hourly Sector counts missing as a result opound debris or printer aa~poundunction were eatiaated by averag1ng the counta in tbe aaaa sector poundor the hour bepoundore and apoundter the sector count in queation Counts ware totaled daily poundor each bank uaing an e~ectronic calculator and the eeat and weat bank totala auaaed to obtain a daily eacapement estimate Since summer chum aalaon greatly outnuaber chinookbull and pinka and the counters do not diatingu~ah between apec~es opound aalaon~ all aonar counts were attributed to auaaer chua salaon A separate eacapament estibullste poundor chinook aalbullon waa obtained by aerial survey
Each sonar counter waa calibrated poundour tiaes daily by obaerv~ng
poundiah paaaage with an oscilloscope poundor a 15 ainute period Salmon paaaing through tha aonar beaa produce a distinct oscilloecope trace Sonar and oacilloscope counts poundor each calibration period were related in the oraula Q=SSSC~ where SS = aide acan sonar counta an~ SC bull oacilloacope counta The existing poundiah velocity bullbulltting waa aultiplied by Q to obtain tbe correct new setting ipound the dispounderence between the counts waa greater than 15~ The ayatea waa then recalibrated at the new setting A record waa kept opound all adJuatmenta to the sonar equipment Fish peaaage was
5
viauelly enuaereted poundrobull ~0 poundt counting towers during sonar calibration ~ioda as a poundurther check on aonar accuracy whenever water and light cond~tiona allowed Polaroid sunglaaaea were worn to reduce water aurpoundace glare
Daily sonar counts were adJusted apoundter the poundield aeason baaed on the calibration date The daily adJUStment poundactor ia the sua opound calibrat~on oscilloscope counts poundor that day divided by the aua opound cel~bration aoner counts poundor tnat day Deily aonar counts were aultiplied by the daily adJuatent poundactor to obtain corrected daily sonar counta Mean and standard deviation opound date opound paaaage were calculated poundollowing the aethod presented by Mundy (1982)
Water depth propoundile at the sonar aite waa aeoaured at 3 a intervals across the width opound the river by probing with a pole aarked in 1 em incrementa Clibullatological data were collected at noon each day at the caapsite A pole aarked 1n 1 ca increaents waa aat in the river Changes in water depth are presented as negative or positive poundroa the initial reading opound 0 em Water teaperature waa aaaaurad in degreea centigrade near shore at a depth opound about 05 bullmiddot Daily aex~aua and miniaua air temperatures were recorded in degrees centigrade SubJective notes were kept by the crew describing wind speed end direction cloud cover and precipitation
A beach seine lt100 poundt long GG aeahaa deep 2-112 in aeah) was set near the aonar aita to capture chua and chinook aalaon poundor ega bullbullx~ and aize aeaaurebullenta Chua and chinook salmon were placed in a holding pen identipoundiad by sex measured poundroa mid-eye to poundark opound tail in bullbullbull and ona scale wea taken poundor age deteraination Scales were reaoved poundroa en area posterior to the baaa opound the dorsal poundin and above the lateral line on the lepoundt aide opound the poundiah The adipoae poundin was clipped on each poundiah bepoundore release to prevent reaaapling Chinook salmon carcaaaea were aaapled in Auguat to auppleaant the beach seine saaple Three acalea were taken poundroa each carcass Scale aamplaa were later pressed on acetate carda and the resulting impressions viewed on a aicropoundiche reader poundor age deteraination
Reaulta and Diacuaaion
Two aonar counterbull ware operated poundroa 21 June through 15 July at approx~aately the aaae aitea used in previous yeara ltFigure 3gt The east bank transducer waa located along a cutbank 37 bull opoundpoundahore and at a depth opound 87 em The west bank transducer was located along a gradually aloping gravel bar approxibullately 60 bull downatreaa poundroa the aaat bank aite The transducer was 152 m opoundpoundahora and at a depth opound 61 ca The entire width opound the river between the tranaducera was insonipound1ad River bottobull gradient was aaooth with no obatructiona to the sonar beaa and bullaximua depth waa 149 ca ea aeaaured on 23 3une ltFigure 3)
River water level waa opound noraal height poundor the time opound year when
6
Eaat Bank
Wea-t Bank
Figure 3 Map of the Anvik River sonar site and river depth profiles as measured on 23 June 1986 for the west bank and on 25 June 1986 for the east bank Shaded areas show approximate range of insonification on these dates weirs are indicated with cross hatching Unequal scale of the axes distorts the presentation
7
the crew arr1ved to begin proJect operations Below average anowpack in the drainage and below average rainpoundall in the spring and ear~y auaaer resulted in steadily declining water levels throughout aonar proJect operation-CFigure 4) Moderate increases in water level on 22 and 27 June were due to pulses opound high water in the Yukon River poundroa heavy rainpoundall in the upper portion opound the Yukon River drainage These pulabullbull opound high water had the epoundfect opound backing up the discharge opound water poundroa the Anvik River drainage Water taaperatura ranged poundroa a low opound 9 C on 26 3une to a high opound ~8 C on 5 3uly while air teaperatura ranged poundroa a low daily ainiaua opound 2 c on 14 3uly to a high daily aaxiaua opound 29 C on 4 July
Sonar anubulleration waa scheduled to continue until 28 July ipound neceaaary but eaergency budget reductiona resulted in teraination opound counting on 15 July Signipoundicant numberbull opound poundish were still being counted at that tiae The adJusted escapement count poundor the period 21 June through ~5 3uly waa 1085750 suaaer chua aa~aon ltTable 1gt A peak adJusted daily count opound 117778 poundish occurred on 30 June which repreaented 108~ opound the total aaaaon sonar count Escapeaent tiaing appeared to be relatively early aa it had been in 1979 198~ and 1983 CFigure 5) Mean date opound run paasege waa 3 July with a standard deviation opound 505 daya The caleulated aean and standard deviation are apoundpoundected by premature termination opound the pro)ect
The cuaulative bullbullcapeaent count for the period 21 June through 15 July opound 1085750 auaaer ehua salaon can be expanded to a total season eacapeaent estimate baaed on historical eacapeent tiaing petterna An average opound 873~ opound the total aeaaon sonar count occurred apoundter 15 July poundor previous years lt1979 1981 and 1963gt with an early tiaing pattern aoat aiailar to that opound 1986 Applying this axpanaion poundactor results in a total seaaon eacapeent eatiaate opound ~189602 auaaer chua aalaon poundor 1986
Historical eacapeaent tiaing patterns were uaed on an in-aeason baaia to proJeet the poundinal eacapeaent eatiaate poundor poundiahery aanagebullent purpoaes Sonar counts poundor the period 21-29 June input into the average tiaing curve poundor an early escapement timing pattern (baaed on 1979 1981 and 1983gt resulted in e proJect~on os 1291000 auaae~ chua aalaon This waa w~thin 9~ opound the actue~ poundinal eacepeaent eatiaata opound 1189602 poundiah
Buk~ia (19$2) expanded the aeason eacapeaent eatimatea poundo~ ~972
through 1978 aak1ng it poaaible to aore directly compare viaual count eatiaatea pound~obull thoae yaara with the aore recent aonar count eatiaatee ltFigure 6) The 1986 eacapeaent eatiaate opound 1189602 auaaar chua aa~aon waa second only to the ~981 eacapeaent opound nearly 13 ail~ion poundiah waa 24 tiaaa greater than the eacapeaant obJective opound 487000 poundiah ltADFG 1985gt and was 20 tiaea greater than the long tera lt1972-1985gt average opound 587714 poundish
A total opound 2423 houra opound aonar calibration waa conducted over a 25 day period at the weat bank aite and sonar accuracy ltsonar
8
I I
I I
1 986 MINMAX AIR TEMPERATURE 30 u 28
2-4
22
20
18 1a
10
bull bull 2
0 111-lt1 2-tun Oa-Jwl
a UINIMUM
1 986 WATER TEMPERATURE
~~----------------------------------------- 1 13 11 10
bull a 7
bull
n 1~IUI
bull I I bull
21a-Jun
1986 RELATIVE WATER DEPTH
0~~----------------------------------------
-10
-20
I =~ -bulloj -10-
-80+-~middot~bull-rbull~~~~middot~middot-middot~middot~middot~~middot~middot~~middot~middotmiddotbull-rbull~middot~~~~~ 18-Jun
Figure 4 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the Anvik River sonar site 1986
9
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
LIST OF TABLES
1 Anvik River auaaer chubull aa~aon sonar countbull by date 1986 bull bull bull bull bull bull bull bull bull a bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull a bull bull bull bull bull bull 10
2 Oaci~~ocope and viaual calibration opound salmon aonar counta at the Anvik River weat bank site 1986 bullbullbullbullbullbullbull 15
3 Oaci~loacopa and viaua~ calibration opound aalaon sonar counta at the Anvik River east bank aite 1986 bullbullbullbullbullbullbull 16
4 Eaat Fork Andreapoundaky River expanded tower counta opound aalaon eacapeaent by apeciea and date 1986 bullbullbullbullbullbullbullbullbullbull 2
ii
LIST OF FIGURES
1 Xep opound the Yukon River showing poundiahing diatricta_ and MaJOr auabuller ~hua aa~aon spawning areaa bullbullbullbullbullbullbullbullbullbullbullbullbullmiddot 2
2 Map opound the Anvik River middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullmiddotbullbullbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 4
3 Map opound tha Anvik River aonar site and river depth propoundi~ea aa aeaaured on 23 3una 1986 poundor the waat and on 2~ 3una 1986 poundor the aaat bank Shaded areas ahow approxibullate range opound inaonipoundication on theae dataa weirbull are indicated with croaa hatching Unaqua~ acale opound the axaa diatorta the presentation bullbullbull 7
4 Air temperatura ltdaily ainiaua and aaxiaua) w_ater t peratura and ra~ative water depth aeaaurad at noon dei~y at tha Anvik River sonar aite 1986 bullbullbullbullbullbullbullbull 9
5 Anvik River auaaer chua aalaon aonar eounta by day 1979-1986 Mean date opound run paaaage ltcalculated with Day 1 bull 16 3unegt ia indicated by amphaded bar and standard daviation ltSDgt opound the aaan ia given bullbullbullbullbullbullbullbullbullbull 11
6 Anvik River auaaar chua aelaon aacapaaent aatiaated by coabinad tower and aerial aurvay counta1972-1978 and by aida-acanning aonar 1979-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 13
7 Anv~k River bulluaaer chua aalaon sonar counta by hour opound the day poundor tha early lt2~-29 3unagt aidd~e lt30 June - 7 Julygt and latbull lt8-15 3ulygt portion opound the aaaaon and poundor the entire 1986 aeaaon eobullbined Total sonar counts ltngt used poundor thia analyeia are given poundor each period bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 17
a Anvik River auaaer chua aalaon_ aonar counta by sonar aeetor poundor the early lt21-29 Junbullgtbull bulliddle (30 June -7 3u~y) end la~e lt8-15 July) portion opound the season and poundor the entire 1986 aeeaon coabinad Sector 1 ia weet bank sector 1 12 ia weat bank sector 12 13 ia east bank sector 12 and 24 ia eeet bank sector 1 Total aonar counta ltngt uaed poundor thia analyaia are given poundor each period bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull ~8
9 Age and aex composition opound Anvik River auaaer chua aa~aon 1972-1986 preaented aa proportion opound tote~ aaaple poundor each year by age e~aaa Nota dipoundpounderant aca~bull poundor age 6 middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 20
iii
LIST OF FIGURES ltCONTINUEDgt
10 Age and aex cOJDpoaition opound Anvik River chinook aalbullon 1972-1986 preaentad aa proportion opound tote~
aaapla poundor each year by age c1aaa Notbull dipoundpounderant aca~e poundor age 7 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 21
11 Map opound the Andreapoundaky River end opound the tower aita ltinat) located at river ai~bull 20 opound the Eaat Fork bullbullbullbullbull 22
12 River depth propoundilea opound the Eaat Fork Andreepoundaky River tower aita aa aeaaurad on 19 3une and 10 July 1986 Croaa hatching indicates waira Unequal scala opound the axa distorta the praaentation bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 25
13 Air temperature ltdaily ainiaum and aaxiauagt water teaperature and relative water depth aaaaured at noon daily at the Eaat Fork Andreapoundaky River tower ai te 1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 26
14 Eaat Fork Andreapoundaky River aumer chua aalaon sonar or tower counts by day 1981-1986 Mean data opound run paaaage ltcalculated with Day 1 = 16 3une) indicated by ahaded bar and standard deviation ltSOgt opound the mean ia given bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 29
15 ampaat Fork Andreefeky River auaaer chwa aelbullon eacapeshyaent ea eat~bullatad by aerial survey ~92-1980 and 198S by aide-acanning aonar 1981-1984 and by tower countbull 1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 30
16 Cuaulat~ve proportion opound aeaaon tote~ subullbuller chubull chinook and pink aalaon tower counts by date at tha Eaat Fork Andreapoundaky River 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 31
17 Distribution opound auaaer chua chinook and pink aalaon tower counta by hour opound the day poundor the Eaat Fork Andreapoundaky River 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 33
18 Age and aex coapoaition opound Eaat Fork Andreapoundaky River auaaer chua aalaon1981-1986 preaented aa proportion opound total sample poundor each year by age claaa Note dipoundpounderent acale -poundor agea 3 and 6 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 34
19 Age and aax compoaition opound Andreapoundaky River chinook aalbullon 1981-1986 presented as proportion opound total aabullple poundor each year by age claaa Note dipoundpounderent acale poundor age 7 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 36
iv
LIST OF FIGURES ltCONTINUEDgt
20 Run tibullining opound Yukon River auaaar chua aa~aon in 1986 aa indicated by catchea aonar counts or tower eounta at poundour aitea Mean date opound run paaaage ia indicated by ahaded bar and atandard deviation ltSDgt opound the mean ia given bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullmiddotbullmiddotbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 37
v
Appendix ~~~
LIST OF APPENDICES
1 Anvik River aalbullon beach aeine catch by apeciea~ aex and date 1986 bullmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullbullbullbullbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbull 40
2 Age and bullbullx capoaition opound Anvik River auamar chua aalaon eacapement bull-plea ~ 1972-1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 41
3 Age and aex coapoaition opound Anvik River chinook aalaon aacapeaent aaaplea 1972-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 42
4 Eaat Fork Andraapoundaky River auaaer chua aalaon tower counta by hour and date 1986 with count eatiaation poundorbullulea derived poundrobull the data poundor bulliaaing t ibullbull blocka bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 43
5 Eeat Fork Andreepoundaky River chinook salmon tower counta by hour and date 1986 with count eatibullation poundorbullu~aa derived poundrobull the data poundor bulliaaing time blocks bullbullbullbullbullbullbullbull 44
6 Eaat Fork Andreapoundaky River pink aalaon tower counta by hour and date 1986 with count estiMation poundoraulaa derived poundrobull theae data poundor aiaaing t~ae b~ocka bullbullbullbullbullbullbullbull 45
7 Eaat Fork Andreapoundaky River aalaon beech bullbull~na catch by apeciea x end date 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 46
a Age and aex coapoeition opound Eaat Fork Andreapoundaky River au ar chua aalbullon eacapaaent aabullplea 1981-1986 bullbullbullbullbullbullbull 47
9 Age end aex coapoaition opound Andreapoundaky River ch~nook
aalaon eacapebullent aaaplea 1981-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 48
vi
rNTRODUCTION
The Anvik and Andreafaky Rivera are the two la~geet producers opound eumaer chua aalaon ltQ~pound~~~~~gbY ~~~~) in the Yukon River dra~nage ltFigure 1gt Buklia lt1982) eatiaetad that the Anvik River alone acoounta poundor 3~ opound the total production Other _ kno~n maJor spawning populations occur in the Redo Nulato Giaaaa Hogatza Melozitna Tozitna Chene and Salcha Rivra Suamer chua salmon spawn in leaaer nuabara in other tributariea opound the Yukon River Chinook ltQ~ ~~~~y~~~~gt and pink ltQ~ 92~~~~~~) aelaon occur in the Anvik and Andreapoundsky Rivera coincidentally with auaae~ chua aelbullon while coho aalaon ltQ~ ~~~~~=~gt are known to occur in smell nuabera in the poundall but their abundance ia not aonitored
Coaaerc~al and aubaistence poundiaheriea that harveat Anvik and Andreapoundaky River auaaer chua aelaon occur throughout tha aainatea Yukon River poundrca the coaat opound the delta to the aoutha opound the respective tributary atraaaa Set and dripoundt gillnets are the legal poundiahing gear in Districts 1 2 and 3 whi~bull aat gil~neta and poundiahwbeela aay be uaad in District 4 Moat opound the epoundpoundort and harvest occurs in Diatricta 1 and 2 and in the lower po~tion opound District 4 near the Anvik River Fiah taken coamercially in the lower three diatricta are poundrash poundrozen while District 4 ia a roe poundiahery due to aarket conditions and pound~eah quality Coamercial and aubaiatence auamer chua aa~aon poundiaher~bullbull in the reaainder opound District 4 end in District 6 are supported by atocka other than thoae opound tha Andreapoundaky and Anvik Rivera Very poundew auaaer chua salaon are harveated in Diatrict S due to the lack of significant apawning populat~ona in that portion opound the drainage Thera are no acale pattern electrophoretic o~ mark-recapture stock 1dentipoundication data availab~e on Yukon River suaaer chua ae~aon
Ch~nook aalaon are tbe target apeciea of the ~o~r Yukon River ltDiatricta 1 2 and 3gt coaaercial poundiahery during 3une and early July Fiahing ia uaually peraitted with unreatricted aeah aize gillnata until changeover to 6 inch aexiaua aeah aize is required by Eaergency Order In aoat years tha aaJOrity opound the auaaer chum aalaon run haa paaaed through the lower river districts before the changeover to chua aalaon gear Aa a result moat opound the aubullaer chubull aalaon coaaerc~a~ harvest in the lower Yukon ia uauelly taken poundroa tha later portion opound the run
The Board opound Fieber~bullbull directed that beginning with the 1985 aeaaon there aay be apecial saall aeah gear openninga dur1ng the chinook aalaon aeaaon to opt~aize harvest opound suaaer chua aalaon Thie would require that a relatively large auaaer chua aalaon run ia in progress and that the incidental harvest opound chinook aa~aon would not ba aubatential enough to have an adverse apoundpoundect on the aenagaaent opound that species Theae criteria ware JUdged to have baan bullbullt in 1986 and special restricted lt6 maxiauagt aeah size poundiahing parioda were aatabliahed in the lower river coaaercial
1
Hogatza R
334-40
=middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot~ middotmiddotmiddot-middot-middot middot-middotmiddot~
Fishing District Boundaries
Major St1IIIrer Chum Salmgtn Spawning Areas
Figure middot1 Map of the Yukon River showing fishing districts and major summer chum salmon spawning areas
fiahery dUr~ng the chinook aa1mon aeaaon coaaercial poundiahery ia directed priaarily Subaiatence poundiaheriea in all poundour dmiddotiatrtcta aelaon primiddotaarily poundor sled dog poundood
The District 4 at chua aalaon take auaaer chua
Suaaer chuM aalaon eacapeaenta to the aaJor spawning areaa in the Yukon River drainage have been estimated by aerial survey poundrom fixed wing aircrapoundt on a conaiatant beaia since the early 1970~a Aerial surveys are aub)ect to error and variability due to weather and atraaa conditionbull~ tiaing opound the aurvey_relative to apewning stage and aubJectivity and experience on the part opound the observer The counta obteined are on1y indicea opound abundance ainca not all aalaon pre nt on the day opound the survey are uaually sean and earlier and later apawnera are not present However tbaaa indices if obtained under standardized conditions can be uaed to aonitor the relative abundance of spawning aacapeaenta Aerial aurveya ara the aoat poundeaaible aethod opound aeeeasing salmon bullbullcapeaenta in terme of coat and atepoundpound 1~a~tationa ~n a watershed as i-enae and reaote bullbull that opound the Yukon River
The Alaska Departaent of Fiah _and Gaae ltADFampGgt baa continued the aerial survey prograa while intensively studying a few iaportant and representative tributary streea aa1aon apawning populet~ona The Anvik and Andreepoundaky Rivera have been choaen for auaaer chum aalaon reaearch studies Thia report preaenta reaulta opound these atudiea poundor the 1986 poundiald aeaaon and prov~dea recoaaendations for 1987 proJect operations
ANVIK RIVER SALMON STUDY
The Anvik River ltFigura 2) originates at an elevation opound ~300
feat and pound1owa in a southerly direction epproxiaately 120 ailea to ~ta aouth at aile 318 opound the Yukon River It ia a narrow runopoundpound atreaa with a auoatrate opound gravel and cobb1e except in tha upper reach where bedrock 1a exposed The Ve1low River ~ a aaJor tributary opound the Anvik and ia stained with tannic acid runepoundpound Downatreaa opound the Yellow River conpoundluence the Anvik R~ver changea poundroa a aoderate gradient ayatea to a low gradient ayatea aaandering through a auch broader poundlood plain Water clarity ~a
reduced downatreabull of the Yellow River Huaaroue oxoowa_ old channel cutopoundpounda and alougha are poundound throughout the lower river
Salaon eacapeaent waa enuaerated poundrca counting towera located above the Ye~low River poundroa 1972 to 1978 A aite S-112 ailea above the Vbullllow River waa uaed frobull 1972 to 197~ and a aite at Robinhood Creek 2-112 ailea above the Yellow River_ was used froa 1976 to 1978 Aerial aurveya werbull poundlown each year ltexcept 19741 in poundixed-wing aircraft to eatiaate aalbullon abundance below the tower aite High and turb~d water opoundten epoundpoundecta the accuracy opound viaual aalaon enuaeration froa counting towers and a~rcrapoundt
The Electrodynaaica Diviaion opound the Bendix Corporation developed
3
bull bull
4
s w gt - c ~ gt pound lt Ql ~
+J
0
0 lttl
N
Ql $ I en
a aide-scanning sonar counter during the 1970s capab~e opound detacting and counting aa~aon aigrating a~ong the banks opound tributary streaaa The sonar counter ia designed to transMit a sonic beaa a~ong bull 60 poundoot aluminua tube~ or substrata Echoes poundrobull aa~aon paaaing through the beebull are repoundlected back to the transducer The systea electronicamp interpret the strength and nuaber opound the echoea and tally aalaon counta Criteria poundor strength and poundrequency opound the echoes ere designed to optiD~ze
counting opound aelaon and ainiaize any non-salmon counts ltie debris or other poundiah epecieal SalMon eacapaaent was enuaerated by aonar beginning in 1979~ rep~acing and proving superior to the tower counting aathod One sonar counter has been installed on each bank os the Anvik River near Theodore Creek each year Aerial survey data indicates that virtually all suaaer chua salmon spawnerbull are poundound upatreaa opound this site
Methods and Materials
Two 1978 Model aonar counters were operated without art1poundicia~
aluainua substrate tubea throughout the season poundor the second consecutive year Each sonar transducer was aounted on a ~ectangular aluainubull poundraaa The eaat and weat bank sites used in previous yaera were probed to locate unipoundora river bottoa gradients that would provide optiaua aurpoundaees poundor insonipoundication Two ateei pipes were aet into the river bottoa on each aide opound the river onto which the transducer poundraaea were guided by aide aounted ateei sleeves Counting rangea were set such that the entire width opound the river was inaonipoundied Weirs prevented salmon peaaage inahore opound the transducer on each banmiddotk Transducers were eoved inahora or opoundpoundahore as required by poundluctuating water lavela
Sonar counts were totaled electronically in twelve sectors poundor each bank and printed hourly Sector counts missing as a result opound debris or printer aa~poundunction were eatiaated by averag1ng the counta in tbe aaaa sector poundor the hour bepoundore and apoundter the sector count in queation Counts ware totaled daily poundor each bank uaing an e~ectronic calculator and the eeat and weat bank totala auaaed to obtain a daily eacapement estimate Since summer chum aalaon greatly outnuaber chinookbull and pinka and the counters do not diatingu~ah between apec~es opound aalaon~ all aonar counts were attributed to auaaer chua salaon A separate eacapament estibullste poundor chinook aalbullon waa obtained by aerial survey
Each sonar counter waa calibrated poundour tiaes daily by obaerv~ng
poundiah paaaage with an oscilloscope poundor a 15 ainute period Salmon paaaing through tha aonar beaa produce a distinct oscilloecope trace Sonar and oacilloscope counts poundor each calibration period were related in the oraula Q=SSSC~ where SS = aide acan sonar counta an~ SC bull oacilloacope counta The existing poundiah velocity bullbulltting waa aultiplied by Q to obtain tbe correct new setting ipound the dispounderence between the counts waa greater than 15~ The ayatea waa then recalibrated at the new setting A record waa kept opound all adJuatmenta to the sonar equipment Fish peaaage was
5
viauelly enuaereted poundrobull ~0 poundt counting towers during sonar calibration ~ioda as a poundurther check on aonar accuracy whenever water and light cond~tiona allowed Polaroid sunglaaaea were worn to reduce water aurpoundace glare
Daily sonar counts were adJusted apoundter the poundield aeason baaed on the calibration date The daily adJUStment poundactor ia the sua opound calibrat~on oscilloscope counts poundor that day divided by the aua opound cel~bration aoner counts poundor tnat day Deily aonar counts were aultiplied by the daily adJuatent poundactor to obtain corrected daily sonar counta Mean and standard deviation opound date opound paaaage were calculated poundollowing the aethod presented by Mundy (1982)
Water depth propoundile at the sonar aite waa aeoaured at 3 a intervals across the width opound the river by probing with a pole aarked in 1 em incrementa Clibullatological data were collected at noon each day at the caapsite A pole aarked 1n 1 ca increaents waa aat in the river Changes in water depth are presented as negative or positive poundroa the initial reading opound 0 em Water teaperature waa aaaaurad in degreea centigrade near shore at a depth opound about 05 bullmiddot Daily aex~aua and miniaua air temperatures were recorded in degrees centigrade SubJective notes were kept by the crew describing wind speed end direction cloud cover and precipitation
A beach seine lt100 poundt long GG aeahaa deep 2-112 in aeah) was set near the aonar aita to capture chua and chinook aalaon poundor ega bullbullx~ and aize aeaaurebullenta Chua and chinook salmon were placed in a holding pen identipoundiad by sex measured poundroa mid-eye to poundark opound tail in bullbullbull and ona scale wea taken poundor age deteraination Scales were reaoved poundroa en area posterior to the baaa opound the dorsal poundin and above the lateral line on the lepoundt aide opound the poundiah The adipoae poundin was clipped on each poundiah bepoundore release to prevent reaaapling Chinook salmon carcaaaea were aaapled in Auguat to auppleaant the beach seine saaple Three acalea were taken poundroa each carcass Scale aamplaa were later pressed on acetate carda and the resulting impressions viewed on a aicropoundiche reader poundor age deteraination
Reaulta and Diacuaaion
Two aonar counterbull ware operated poundroa 21 June through 15 July at approx~aately the aaae aitea used in previous yeara ltFigure 3gt The east bank transducer waa located along a cutbank 37 bull opoundpoundahore and at a depth opound 87 em The west bank transducer was located along a gradually aloping gravel bar approxibullately 60 bull downatreaa poundroa the aaat bank aite The transducer was 152 m opoundpoundahora and at a depth opound 61 ca The entire width opound the river between the tranaducera was insonipound1ad River bottobull gradient was aaooth with no obatructiona to the sonar beaa and bullaximua depth waa 149 ca ea aeaaured on 23 3une ltFigure 3)
River water level waa opound noraal height poundor the time opound year when
6
Eaat Bank
Wea-t Bank
Figure 3 Map of the Anvik River sonar site and river depth profiles as measured on 23 June 1986 for the west bank and on 25 June 1986 for the east bank Shaded areas show approximate range of insonification on these dates weirs are indicated with cross hatching Unequal scale of the axes distorts the presentation
7
the crew arr1ved to begin proJect operations Below average anowpack in the drainage and below average rainpoundall in the spring and ear~y auaaer resulted in steadily declining water levels throughout aonar proJect operation-CFigure 4) Moderate increases in water level on 22 and 27 June were due to pulses opound high water in the Yukon River poundroa heavy rainpoundall in the upper portion opound the Yukon River drainage These pulabullbull opound high water had the epoundfect opound backing up the discharge opound water poundroa the Anvik River drainage Water taaperatura ranged poundroa a low opound 9 C on 26 3une to a high opound ~8 C on 5 3uly while air teaperatura ranged poundroa a low daily ainiaua opound 2 c on 14 3uly to a high daily aaxiaua opound 29 C on 4 July
Sonar anubulleration waa scheduled to continue until 28 July ipound neceaaary but eaergency budget reductiona resulted in teraination opound counting on 15 July Signipoundicant numberbull opound poundish were still being counted at that tiae The adJusted escapement count poundor the period 21 June through ~5 3uly waa 1085750 suaaer chua aa~aon ltTable 1gt A peak adJusted daily count opound 117778 poundish occurred on 30 June which repreaented 108~ opound the total aaaaon sonar count Escapeaent tiaing appeared to be relatively early aa it had been in 1979 198~ and 1983 CFigure 5) Mean date opound run paasege waa 3 July with a standard deviation opound 505 daya The caleulated aean and standard deviation are apoundpoundected by premature termination opound the pro)ect
The cuaulative bullbullcapeaent count for the period 21 June through 15 July opound 1085750 auaaer ehua salaon can be expanded to a total season eacapeaent estimate baaed on historical eacapeent tiaing petterna An average opound 873~ opound the total aeaaon sonar count occurred apoundter 15 July poundor previous years lt1979 1981 and 1963gt with an early tiaing pattern aoat aiailar to that opound 1986 Applying this axpanaion poundactor results in a total seaaon eacapeent eatiaate opound ~189602 auaaer chua aalaon poundor 1986
Historical eacapeaent tiaing patterns were uaed on an in-aeason baaia to proJeet the poundinal eacapeaent eatiaate poundor poundiahery aanagebullent purpoaes Sonar counts poundor the period 21-29 June input into the average tiaing curve poundor an early escapement timing pattern (baaed on 1979 1981 and 1983gt resulted in e proJect~on os 1291000 auaae~ chua aalaon This waa w~thin 9~ opound the actue~ poundinal eacepeaent eatiaata opound 1189602 poundiah
Buk~ia (19$2) expanded the aeason eacapeaent eatimatea poundo~ ~972
through 1978 aak1ng it poaaible to aore directly compare viaual count eatiaatea pound~obull thoae yaara with the aore recent aonar count eatiaatee ltFigure 6) The 1986 eacapeaent eatiaate opound 1189602 auaaar chua aa~aon waa second only to the ~981 eacapeaent opound nearly 13 ail~ion poundiah waa 24 tiaaa greater than the eacapeaant obJective opound 487000 poundiah ltADFG 1985gt and was 20 tiaea greater than the long tera lt1972-1985gt average opound 587714 poundish
A total opound 2423 houra opound aonar calibration waa conducted over a 25 day period at the weat bank aite and sonar accuracy ltsonar
8
I I
I I
1 986 MINMAX AIR TEMPERATURE 30 u 28
2-4
22
20
18 1a
10
bull bull 2
0 111-lt1 2-tun Oa-Jwl
a UINIMUM
1 986 WATER TEMPERATURE
~~----------------------------------------- 1 13 11 10
bull a 7
bull
n 1~IUI
bull I I bull
21a-Jun
1986 RELATIVE WATER DEPTH
0~~----------------------------------------
-10
-20
I =~ -bulloj -10-
-80+-~middot~bull-rbull~~~~middot~middot-middot~middot~middot~~middot~middot~~middot~middotmiddotbull-rbull~middot~~~~~ 18-Jun
Figure 4 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the Anvik River sonar site 1986
9
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
LIST OF FIGURES
1 Xep opound the Yukon River showing poundiahing diatricta_ and MaJOr auabuller ~hua aa~aon spawning areaa bullbullbullbullbullbullbullbullbullbullbullbullbullmiddot 2
2 Map opound the Anvik River middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullmiddotbullbullbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 4
3 Map opound tha Anvik River aonar site and river depth propoundi~ea aa aeaaured on 23 3una 1986 poundor the waat and on 2~ 3una 1986 poundor the aaat bank Shaded areas ahow approxibullate range opound inaonipoundication on theae dataa weirbull are indicated with croaa hatching Unaqua~ acale opound the axaa diatorta the presentation bullbullbull 7
4 Air temperatura ltdaily ainiaua and aaxiaua) w_ater t peratura and ra~ative water depth aeaaurad at noon dei~y at tha Anvik River sonar aite 1986 bullbullbullbullbullbullbullbull 9
5 Anvik River auaaer chua aalaon aonar eounta by day 1979-1986 Mean date opound run paaaage ltcalculated with Day 1 bull 16 3unegt ia indicated by amphaded bar and standard daviation ltSDgt opound the aaan ia given bullbullbullbullbullbullbullbullbullbull 11
6 Anvik River auaaar chua aelaon aacapaaent aatiaated by coabinad tower and aerial aurvay counta1972-1978 and by aida-acanning aonar 1979-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 13
7 Anv~k River bulluaaer chua aalaon sonar counta by hour opound the day poundor tha early lt2~-29 3unagt aidd~e lt30 June - 7 Julygt and latbull lt8-15 3ulygt portion opound the aaaaon and poundor the entire 1986 aeaaon eobullbined Total sonar counts ltngt used poundor thia analyeia are given poundor each period bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 17
a Anvik River auaaer chua aalaon_ aonar counta by sonar aeetor poundor the early lt21-29 Junbullgtbull bulliddle (30 June -7 3u~y) end la~e lt8-15 July) portion opound the season and poundor the entire 1986 aeeaon coabinad Sector 1 ia weet bank sector 1 12 ia weat bank sector 12 13 ia east bank sector 12 and 24 ia eeet bank sector 1 Total aonar counta ltngt uaed poundor thia analyaia are given poundor each period bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull ~8
9 Age and aex composition opound Anvik River auaaer chua aa~aon 1972-1986 preaented aa proportion opound tote~ aaaple poundor each year by age e~aaa Nota dipoundpounderant aca~bull poundor age 6 middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 20
iii
LIST OF FIGURES ltCONTINUEDgt
10 Age and aex cOJDpoaition opound Anvik River chinook aalbullon 1972-1986 preaentad aa proportion opound tote~
aaapla poundor each year by age c1aaa Notbull dipoundpounderant aca~e poundor age 7 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 21
11 Map opound the Andreapoundaky River end opound the tower aita ltinat) located at river ai~bull 20 opound the Eaat Fork bullbullbullbullbull 22
12 River depth propoundilea opound the Eaat Fork Andreepoundaky River tower aita aa aeaaurad on 19 3une and 10 July 1986 Croaa hatching indicates waira Unequal scala opound the axa distorta the praaentation bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 25
13 Air temperature ltdaily ainiaum and aaxiauagt water teaperature and relative water depth aaaaured at noon daily at the Eaat Fork Andreapoundaky River tower ai te 1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 26
14 Eaat Fork Andreapoundaky River aumer chua aalaon sonar or tower counts by day 1981-1986 Mean data opound run paaaage ltcalculated with Day 1 = 16 3une) indicated by ahaded bar and standard deviation ltSOgt opound the mean ia given bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 29
15 ampaat Fork Andreefeky River auaaer chwa aelbullon eacapeshyaent ea eat~bullatad by aerial survey ~92-1980 and 198S by aide-acanning aonar 1981-1984 and by tower countbull 1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 30
16 Cuaulat~ve proportion opound aeaaon tote~ subullbuller chubull chinook and pink aalaon tower counts by date at tha Eaat Fork Andreapoundaky River 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 31
17 Distribution opound auaaer chua chinook and pink aalaon tower counta by hour opound the day poundor the Eaat Fork Andreapoundaky River 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 33
18 Age and aex coapoaition opound Eaat Fork Andreapoundaky River auaaer chua aalaon1981-1986 preaented aa proportion opound total sample poundor each year by age claaa Note dipoundpounderent acale -poundor agea 3 and 6 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 34
19 Age and aax compoaition opound Andreapoundaky River chinook aalbullon 1981-1986 presented as proportion opound total aabullple poundor each year by age claaa Note dipoundpounderent acale poundor age 7 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 36
iv
LIST OF FIGURES ltCONTINUEDgt
20 Run tibullining opound Yukon River auaaar chua aa~aon in 1986 aa indicated by catchea aonar counts or tower eounta at poundour aitea Mean date opound run paaaage ia indicated by ahaded bar and atandard deviation ltSDgt opound the mean ia given bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullmiddotbullmiddotbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 37
v
Appendix ~~~
LIST OF APPENDICES
1 Anvik River aalbullon beach aeine catch by apeciea~ aex and date 1986 bullmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullbullbullbullbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbull 40
2 Age and bullbullx capoaition opound Anvik River auamar chua aalaon eacapement bull-plea ~ 1972-1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 41
3 Age and aex coapoaition opound Anvik River chinook aalaon aacapeaent aaaplea 1972-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 42
4 Eaat Fork Andraapoundaky River auaaer chua aalaon tower counta by hour and date 1986 with count eatiaation poundorbullulea derived poundrobull the data poundor bulliaaing t ibullbull blocka bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 43
5 Eeat Fork Andreepoundaky River chinook salmon tower counta by hour and date 1986 with count eatibullation poundorbullu~aa derived poundrobull the data poundor bulliaaing time blocks bullbullbullbullbullbullbullbull 44
6 Eaat Fork Andreapoundaky River pink aalaon tower counta by hour and date 1986 with count estiMation poundoraulaa derived poundrobull theae data poundor aiaaing t~ae b~ocka bullbullbullbullbullbullbullbull 45
7 Eaat Fork Andreapoundaky River aalaon beech bullbull~na catch by apeciea x end date 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 46
a Age and aex coapoeition opound Eaat Fork Andreapoundaky River au ar chua aalbullon eacapaaent aabullplea 1981-1986 bullbullbullbullbullbullbull 47
9 Age end aex coapoaition opound Andreapoundaky River ch~nook
aalaon eacapebullent aaaplea 1981-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 48
vi
rNTRODUCTION
The Anvik and Andreafaky Rivera are the two la~geet producers opound eumaer chua aalaon ltQ~pound~~~~~gbY ~~~~) in the Yukon River dra~nage ltFigure 1gt Buklia lt1982) eatiaetad that the Anvik River alone acoounta poundor 3~ opound the total production Other _ kno~n maJor spawning populations occur in the Redo Nulato Giaaaa Hogatza Melozitna Tozitna Chene and Salcha Rivra Suamer chua salmon spawn in leaaer nuabara in other tributariea opound the Yukon River Chinook ltQ~ ~~~~y~~~~gt and pink ltQ~ 92~~~~~~) aelaon occur in the Anvik and Andreapoundsky Rivera coincidentally with auaae~ chua aelbullon while coho aalaon ltQ~ ~~~~~=~gt are known to occur in smell nuabera in the poundall but their abundance ia not aonitored
Coaaerc~al and aubaistence poundiaheriea that harveat Anvik and Andreapoundaky River auaaer chua aelaon occur throughout tha aainatea Yukon River poundrca the coaat opound the delta to the aoutha opound the respective tributary atraaaa Set and dripoundt gillnets are the legal poundiahing gear in Districts 1 2 and 3 whi~bull aat gil~neta and poundiahwbeela aay be uaad in District 4 Moat opound the epoundpoundort and harvest occurs in Diatricta 1 and 2 and in the lower po~tion opound District 4 near the Anvik River Fiah taken coamercially in the lower three diatricta are poundrash poundrozen while District 4 ia a roe poundiahery due to aarket conditions and pound~eah quality Coamercial and aubaiatence auamer chua aa~aon poundiaher~bullbull in the reaainder opound District 4 end in District 6 are supported by atocka other than thoae opound tha Andreapoundaky and Anvik Rivera Very poundew auaaer chua salaon are harveated in Diatrict S due to the lack of significant apawning populat~ona in that portion opound the drainage Thera are no acale pattern electrophoretic o~ mark-recapture stock 1dentipoundication data availab~e on Yukon River suaaer chua ae~aon
Ch~nook aalaon are tbe target apeciea of the ~o~r Yukon River ltDiatricta 1 2 and 3gt coaaercial poundiahery during 3une and early July Fiahing ia uaually peraitted with unreatricted aeah aize gillnata until changeover to 6 inch aexiaua aeah aize is required by Eaergency Order In aoat years tha aaJOrity opound the auaaer chum aalaon run haa paaaed through the lower river districts before the changeover to chua aalaon gear Aa a result moat opound the aubullaer chubull aalaon coaaerc~a~ harvest in the lower Yukon ia uauelly taken poundroa tha later portion opound the run
The Board opound Fieber~bullbull directed that beginning with the 1985 aeaaon there aay be apecial saall aeah gear openninga dur1ng the chinook aalaon aeaaon to opt~aize harvest opound suaaer chua aalaon Thie would require that a relatively large auaaer chua aalaon run ia in progress and that the incidental harvest opound chinook aa~aon would not ba aubatential enough to have an adverse apoundpoundect on the aenagaaent opound that species Theae criteria ware JUdged to have baan bullbullt in 1986 and special restricted lt6 maxiauagt aeah size poundiahing parioda were aatabliahed in the lower river coaaercial
1
Hogatza R
334-40
=middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot~ middotmiddotmiddot-middot-middot middot-middotmiddot~
Fishing District Boundaries
Major St1IIIrer Chum Salmgtn Spawning Areas
Figure middot1 Map of the Yukon River showing fishing districts and major summer chum salmon spawning areas
fiahery dUr~ng the chinook aa1mon aeaaon coaaercial poundiahery ia directed priaarily Subaiatence poundiaheriea in all poundour dmiddotiatrtcta aelaon primiddotaarily poundor sled dog poundood
The District 4 at chua aalaon take auaaer chua
Suaaer chuM aalaon eacapeaenta to the aaJor spawning areaa in the Yukon River drainage have been estimated by aerial survey poundrom fixed wing aircrapoundt on a conaiatant beaia since the early 1970~a Aerial surveys are aub)ect to error and variability due to weather and atraaa conditionbull~ tiaing opound the aurvey_relative to apewning stage and aubJectivity and experience on the part opound the observer The counta obteined are on1y indicea opound abundance ainca not all aalaon pre nt on the day opound the survey are uaually sean and earlier and later apawnera are not present However tbaaa indices if obtained under standardized conditions can be uaed to aonitor the relative abundance of spawning aacapeaenta Aerial aurveya ara the aoat poundeaaible aethod opound aeeeasing salmon bullbullcapeaenta in terme of coat and atepoundpound 1~a~tationa ~n a watershed as i-enae and reaote bullbull that opound the Yukon River
The Alaska Departaent of Fiah _and Gaae ltADFampGgt baa continued the aerial survey prograa while intensively studying a few iaportant and representative tributary streea aa1aon apawning populet~ona The Anvik and Andreepoundaky Rivera have been choaen for auaaer chum aalaon reaearch studies Thia report preaenta reaulta opound these atudiea poundor the 1986 poundiald aeaaon and prov~dea recoaaendations for 1987 proJect operations
ANVIK RIVER SALMON STUDY
The Anvik River ltFigura 2) originates at an elevation opound ~300
feat and pound1owa in a southerly direction epproxiaately 120 ailea to ~ta aouth at aile 318 opound the Yukon River It ia a narrow runopoundpound atreaa with a auoatrate opound gravel and cobb1e except in tha upper reach where bedrock 1a exposed The Ve1low River ~ a aaJor tributary opound the Anvik and ia stained with tannic acid runepoundpound Downatreaa opound the Yellow River conpoundluence the Anvik R~ver changea poundroa a aoderate gradient ayatea to a low gradient ayatea aaandering through a auch broader poundlood plain Water clarity ~a
reduced downatreabull of the Yellow River Huaaroue oxoowa_ old channel cutopoundpounda and alougha are poundound throughout the lower river
Salaon eacapeaent waa enuaerated poundrca counting towera located above the Ye~low River poundroa 1972 to 1978 A aite S-112 ailea above the Vbullllow River waa uaed frobull 1972 to 197~ and a aite at Robinhood Creek 2-112 ailea above the Yellow River_ was used froa 1976 to 1978 Aerial aurveya werbull poundlown each year ltexcept 19741 in poundixed-wing aircraft to eatiaate aalbullon abundance below the tower aite High and turb~d water opoundten epoundpoundecta the accuracy opound viaual aalaon enuaeration froa counting towers and a~rcrapoundt
The Electrodynaaica Diviaion opound the Bendix Corporation developed
3
bull bull
4
s w gt - c ~ gt pound lt Ql ~
+J
0
0 lttl
N
Ql $ I en
a aide-scanning sonar counter during the 1970s capab~e opound detacting and counting aa~aon aigrating a~ong the banks opound tributary streaaa The sonar counter ia designed to transMit a sonic beaa a~ong bull 60 poundoot aluminua tube~ or substrata Echoes poundrobull aa~aon paaaing through the beebull are repoundlected back to the transducer The systea electronicamp interpret the strength and nuaber opound the echoea and tally aalaon counta Criteria poundor strength and poundrequency opound the echoes ere designed to optiD~ze
counting opound aelaon and ainiaize any non-salmon counts ltie debris or other poundiah epecieal SalMon eacapaaent was enuaerated by aonar beginning in 1979~ rep~acing and proving superior to the tower counting aathod One sonar counter has been installed on each bank os the Anvik River near Theodore Creek each year Aerial survey data indicates that virtually all suaaer chua salmon spawnerbull are poundound upatreaa opound this site
Methods and Materials
Two 1978 Model aonar counters were operated without art1poundicia~
aluainua substrate tubea throughout the season poundor the second consecutive year Each sonar transducer was aounted on a ~ectangular aluainubull poundraaa The eaat and weat bank sites used in previous yaera were probed to locate unipoundora river bottoa gradients that would provide optiaua aurpoundaees poundor insonipoundication Two ateei pipes were aet into the river bottoa on each aide opound the river onto which the transducer poundraaea were guided by aide aounted ateei sleeves Counting rangea were set such that the entire width opound the river was inaonipoundied Weirs prevented salmon peaaage inahore opound the transducer on each banmiddotk Transducers were eoved inahora or opoundpoundahore as required by poundluctuating water lavela
Sonar counts were totaled electronically in twelve sectors poundor each bank and printed hourly Sector counts missing as a result opound debris or printer aa~poundunction were eatiaated by averag1ng the counta in tbe aaaa sector poundor the hour bepoundore and apoundter the sector count in queation Counts ware totaled daily poundor each bank uaing an e~ectronic calculator and the eeat and weat bank totala auaaed to obtain a daily eacapement estimate Since summer chum aalaon greatly outnuaber chinookbull and pinka and the counters do not diatingu~ah between apec~es opound aalaon~ all aonar counts were attributed to auaaer chua salaon A separate eacapament estibullste poundor chinook aalbullon waa obtained by aerial survey
Each sonar counter waa calibrated poundour tiaes daily by obaerv~ng
poundiah paaaage with an oscilloscope poundor a 15 ainute period Salmon paaaing through tha aonar beaa produce a distinct oscilloecope trace Sonar and oacilloscope counts poundor each calibration period were related in the oraula Q=SSSC~ where SS = aide acan sonar counta an~ SC bull oacilloacope counta The existing poundiah velocity bullbulltting waa aultiplied by Q to obtain tbe correct new setting ipound the dispounderence between the counts waa greater than 15~ The ayatea waa then recalibrated at the new setting A record waa kept opound all adJuatmenta to the sonar equipment Fish peaaage was
5
viauelly enuaereted poundrobull ~0 poundt counting towers during sonar calibration ~ioda as a poundurther check on aonar accuracy whenever water and light cond~tiona allowed Polaroid sunglaaaea were worn to reduce water aurpoundace glare
Daily sonar counts were adJusted apoundter the poundield aeason baaed on the calibration date The daily adJUStment poundactor ia the sua opound calibrat~on oscilloscope counts poundor that day divided by the aua opound cel~bration aoner counts poundor tnat day Deily aonar counts were aultiplied by the daily adJuatent poundactor to obtain corrected daily sonar counta Mean and standard deviation opound date opound paaaage were calculated poundollowing the aethod presented by Mundy (1982)
Water depth propoundile at the sonar aite waa aeoaured at 3 a intervals across the width opound the river by probing with a pole aarked in 1 em incrementa Clibullatological data were collected at noon each day at the caapsite A pole aarked 1n 1 ca increaents waa aat in the river Changes in water depth are presented as negative or positive poundroa the initial reading opound 0 em Water teaperature waa aaaaurad in degreea centigrade near shore at a depth opound about 05 bullmiddot Daily aex~aua and miniaua air temperatures were recorded in degrees centigrade SubJective notes were kept by the crew describing wind speed end direction cloud cover and precipitation
A beach seine lt100 poundt long GG aeahaa deep 2-112 in aeah) was set near the aonar aita to capture chua and chinook aalaon poundor ega bullbullx~ and aize aeaaurebullenta Chua and chinook salmon were placed in a holding pen identipoundiad by sex measured poundroa mid-eye to poundark opound tail in bullbullbull and ona scale wea taken poundor age deteraination Scales were reaoved poundroa en area posterior to the baaa opound the dorsal poundin and above the lateral line on the lepoundt aide opound the poundiah The adipoae poundin was clipped on each poundiah bepoundore release to prevent reaaapling Chinook salmon carcaaaea were aaapled in Auguat to auppleaant the beach seine saaple Three acalea were taken poundroa each carcass Scale aamplaa were later pressed on acetate carda and the resulting impressions viewed on a aicropoundiche reader poundor age deteraination
Reaulta and Diacuaaion
Two aonar counterbull ware operated poundroa 21 June through 15 July at approx~aately the aaae aitea used in previous yeara ltFigure 3gt The east bank transducer waa located along a cutbank 37 bull opoundpoundahore and at a depth opound 87 em The west bank transducer was located along a gradually aloping gravel bar approxibullately 60 bull downatreaa poundroa the aaat bank aite The transducer was 152 m opoundpoundahora and at a depth opound 61 ca The entire width opound the river between the tranaducera was insonipound1ad River bottobull gradient was aaooth with no obatructiona to the sonar beaa and bullaximua depth waa 149 ca ea aeaaured on 23 3une ltFigure 3)
River water level waa opound noraal height poundor the time opound year when
6
Eaat Bank
Wea-t Bank
Figure 3 Map of the Anvik River sonar site and river depth profiles as measured on 23 June 1986 for the west bank and on 25 June 1986 for the east bank Shaded areas show approximate range of insonification on these dates weirs are indicated with cross hatching Unequal scale of the axes distorts the presentation
7
the crew arr1ved to begin proJect operations Below average anowpack in the drainage and below average rainpoundall in the spring and ear~y auaaer resulted in steadily declining water levels throughout aonar proJect operation-CFigure 4) Moderate increases in water level on 22 and 27 June were due to pulses opound high water in the Yukon River poundroa heavy rainpoundall in the upper portion opound the Yukon River drainage These pulabullbull opound high water had the epoundfect opound backing up the discharge opound water poundroa the Anvik River drainage Water taaperatura ranged poundroa a low opound 9 C on 26 3une to a high opound ~8 C on 5 3uly while air teaperatura ranged poundroa a low daily ainiaua opound 2 c on 14 3uly to a high daily aaxiaua opound 29 C on 4 July
Sonar anubulleration waa scheduled to continue until 28 July ipound neceaaary but eaergency budget reductiona resulted in teraination opound counting on 15 July Signipoundicant numberbull opound poundish were still being counted at that tiae The adJusted escapement count poundor the period 21 June through ~5 3uly waa 1085750 suaaer chua aa~aon ltTable 1gt A peak adJusted daily count opound 117778 poundish occurred on 30 June which repreaented 108~ opound the total aaaaon sonar count Escapeaent tiaing appeared to be relatively early aa it had been in 1979 198~ and 1983 CFigure 5) Mean date opound run paasege waa 3 July with a standard deviation opound 505 daya The caleulated aean and standard deviation are apoundpoundected by premature termination opound the pro)ect
The cuaulative bullbullcapeaent count for the period 21 June through 15 July opound 1085750 auaaer ehua salaon can be expanded to a total season eacapeaent estimate baaed on historical eacapeent tiaing petterna An average opound 873~ opound the total aeaaon sonar count occurred apoundter 15 July poundor previous years lt1979 1981 and 1963gt with an early tiaing pattern aoat aiailar to that opound 1986 Applying this axpanaion poundactor results in a total seaaon eacapeent eatiaate opound ~189602 auaaer chua aalaon poundor 1986
Historical eacapeaent tiaing patterns were uaed on an in-aeason baaia to proJeet the poundinal eacapeaent eatiaate poundor poundiahery aanagebullent purpoaes Sonar counts poundor the period 21-29 June input into the average tiaing curve poundor an early escapement timing pattern (baaed on 1979 1981 and 1983gt resulted in e proJect~on os 1291000 auaae~ chua aalaon This waa w~thin 9~ opound the actue~ poundinal eacepeaent eatiaata opound 1189602 poundiah
Buk~ia (19$2) expanded the aeason eacapeaent eatimatea poundo~ ~972
through 1978 aak1ng it poaaible to aore directly compare viaual count eatiaatea pound~obull thoae yaara with the aore recent aonar count eatiaatee ltFigure 6) The 1986 eacapeaent eatiaate opound 1189602 auaaar chua aa~aon waa second only to the ~981 eacapeaent opound nearly 13 ail~ion poundiah waa 24 tiaaa greater than the eacapeaant obJective opound 487000 poundiah ltADFG 1985gt and was 20 tiaea greater than the long tera lt1972-1985gt average opound 587714 poundish
A total opound 2423 houra opound aonar calibration waa conducted over a 25 day period at the weat bank aite and sonar accuracy ltsonar
8
I I
I I
1 986 MINMAX AIR TEMPERATURE 30 u 28
2-4
22
20
18 1a
10
bull bull 2
0 111-lt1 2-tun Oa-Jwl
a UINIMUM
1 986 WATER TEMPERATURE
~~----------------------------------------- 1 13 11 10
bull a 7
bull
n 1~IUI
bull I I bull
21a-Jun
1986 RELATIVE WATER DEPTH
0~~----------------------------------------
-10
-20
I =~ -bulloj -10-
-80+-~middot~bull-rbull~~~~middot~middot-middot~middot~middot~~middot~middot~~middot~middotmiddotbull-rbull~middot~~~~~ 18-Jun
Figure 4 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the Anvik River sonar site 1986
9
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
LIST OF FIGURES ltCONTINUEDgt
10 Age and aex cOJDpoaition opound Anvik River chinook aalbullon 1972-1986 preaentad aa proportion opound tote~
aaapla poundor each year by age c1aaa Notbull dipoundpounderant aca~e poundor age 7 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 21
11 Map opound the Andreapoundaky River end opound the tower aita ltinat) located at river ai~bull 20 opound the Eaat Fork bullbullbullbullbull 22
12 River depth propoundilea opound the Eaat Fork Andreepoundaky River tower aita aa aeaaurad on 19 3une and 10 July 1986 Croaa hatching indicates waira Unequal scala opound the axa distorta the praaentation bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 25
13 Air temperature ltdaily ainiaum and aaxiauagt water teaperature and relative water depth aaaaured at noon daily at the Eaat Fork Andreapoundaky River tower ai te 1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 26
14 Eaat Fork Andreapoundaky River aumer chua aalaon sonar or tower counts by day 1981-1986 Mean data opound run paaaage ltcalculated with Day 1 = 16 3une) indicated by ahaded bar and standard deviation ltSOgt opound the mean ia given bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 29
15 ampaat Fork Andreefeky River auaaer chwa aelbullon eacapeshyaent ea eat~bullatad by aerial survey ~92-1980 and 198S by aide-acanning aonar 1981-1984 and by tower countbull 1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 30
16 Cuaulat~ve proportion opound aeaaon tote~ subullbuller chubull chinook and pink aalaon tower counts by date at tha Eaat Fork Andreapoundaky River 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 31
17 Distribution opound auaaer chua chinook and pink aalaon tower counta by hour opound the day poundor the Eaat Fork Andreapoundaky River 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 33
18 Age and aex coapoaition opound Eaat Fork Andreapoundaky River auaaer chua aalaon1981-1986 preaented aa proportion opound total sample poundor each year by age claaa Note dipoundpounderent acale -poundor agea 3 and 6 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 34
19 Age and aax compoaition opound Andreapoundaky River chinook aalbullon 1981-1986 presented as proportion opound total aabullple poundor each year by age claaa Note dipoundpounderent acale poundor age 7 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 36
iv
LIST OF FIGURES ltCONTINUEDgt
20 Run tibullining opound Yukon River auaaar chua aa~aon in 1986 aa indicated by catchea aonar counts or tower eounta at poundour aitea Mean date opound run paaaage ia indicated by ahaded bar and atandard deviation ltSDgt opound the mean ia given bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullmiddotbullmiddotbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 37
v
Appendix ~~~
LIST OF APPENDICES
1 Anvik River aalbullon beach aeine catch by apeciea~ aex and date 1986 bullmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullbullbullbullbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbull 40
2 Age and bullbullx capoaition opound Anvik River auamar chua aalaon eacapement bull-plea ~ 1972-1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 41
3 Age and aex coapoaition opound Anvik River chinook aalaon aacapeaent aaaplea 1972-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 42
4 Eaat Fork Andraapoundaky River auaaer chua aalaon tower counta by hour and date 1986 with count eatiaation poundorbullulea derived poundrobull the data poundor bulliaaing t ibullbull blocka bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 43
5 Eeat Fork Andreepoundaky River chinook salmon tower counta by hour and date 1986 with count eatibullation poundorbullu~aa derived poundrobull the data poundor bulliaaing time blocks bullbullbullbullbullbullbullbull 44
6 Eaat Fork Andreapoundaky River pink aalaon tower counta by hour and date 1986 with count estiMation poundoraulaa derived poundrobull theae data poundor aiaaing t~ae b~ocka bullbullbullbullbullbullbullbull 45
7 Eaat Fork Andreapoundaky River aalaon beech bullbull~na catch by apeciea x end date 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 46
a Age and aex coapoeition opound Eaat Fork Andreapoundaky River au ar chua aalbullon eacapaaent aabullplea 1981-1986 bullbullbullbullbullbullbull 47
9 Age end aex coapoaition opound Andreapoundaky River ch~nook
aalaon eacapebullent aaaplea 1981-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 48
vi
rNTRODUCTION
The Anvik and Andreafaky Rivera are the two la~geet producers opound eumaer chua aalaon ltQ~pound~~~~~gbY ~~~~) in the Yukon River dra~nage ltFigure 1gt Buklia lt1982) eatiaetad that the Anvik River alone acoounta poundor 3~ opound the total production Other _ kno~n maJor spawning populations occur in the Redo Nulato Giaaaa Hogatza Melozitna Tozitna Chene and Salcha Rivra Suamer chua salmon spawn in leaaer nuabara in other tributariea opound the Yukon River Chinook ltQ~ ~~~~y~~~~gt and pink ltQ~ 92~~~~~~) aelaon occur in the Anvik and Andreapoundsky Rivera coincidentally with auaae~ chua aelbullon while coho aalaon ltQ~ ~~~~~=~gt are known to occur in smell nuabera in the poundall but their abundance ia not aonitored
Coaaerc~al and aubaistence poundiaheriea that harveat Anvik and Andreapoundaky River auaaer chua aelaon occur throughout tha aainatea Yukon River poundrca the coaat opound the delta to the aoutha opound the respective tributary atraaaa Set and dripoundt gillnets are the legal poundiahing gear in Districts 1 2 and 3 whi~bull aat gil~neta and poundiahwbeela aay be uaad in District 4 Moat opound the epoundpoundort and harvest occurs in Diatricta 1 and 2 and in the lower po~tion opound District 4 near the Anvik River Fiah taken coamercially in the lower three diatricta are poundrash poundrozen while District 4 ia a roe poundiahery due to aarket conditions and pound~eah quality Coamercial and aubaiatence auamer chua aa~aon poundiaher~bullbull in the reaainder opound District 4 end in District 6 are supported by atocka other than thoae opound tha Andreapoundaky and Anvik Rivera Very poundew auaaer chua salaon are harveated in Diatrict S due to the lack of significant apawning populat~ona in that portion opound the drainage Thera are no acale pattern electrophoretic o~ mark-recapture stock 1dentipoundication data availab~e on Yukon River suaaer chua ae~aon
Ch~nook aalaon are tbe target apeciea of the ~o~r Yukon River ltDiatricta 1 2 and 3gt coaaercial poundiahery during 3une and early July Fiahing ia uaually peraitted with unreatricted aeah aize gillnata until changeover to 6 inch aexiaua aeah aize is required by Eaergency Order In aoat years tha aaJOrity opound the auaaer chum aalaon run haa paaaed through the lower river districts before the changeover to chua aalaon gear Aa a result moat opound the aubullaer chubull aalaon coaaerc~a~ harvest in the lower Yukon ia uauelly taken poundroa tha later portion opound the run
The Board opound Fieber~bullbull directed that beginning with the 1985 aeaaon there aay be apecial saall aeah gear openninga dur1ng the chinook aalaon aeaaon to opt~aize harvest opound suaaer chua aalaon Thie would require that a relatively large auaaer chua aalaon run ia in progress and that the incidental harvest opound chinook aa~aon would not ba aubatential enough to have an adverse apoundpoundect on the aenagaaent opound that species Theae criteria ware JUdged to have baan bullbullt in 1986 and special restricted lt6 maxiauagt aeah size poundiahing parioda were aatabliahed in the lower river coaaercial
1
Hogatza R
334-40
=middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot~ middotmiddotmiddot-middot-middot middot-middotmiddot~
Fishing District Boundaries
Major St1IIIrer Chum Salmgtn Spawning Areas
Figure middot1 Map of the Yukon River showing fishing districts and major summer chum salmon spawning areas
fiahery dUr~ng the chinook aa1mon aeaaon coaaercial poundiahery ia directed priaarily Subaiatence poundiaheriea in all poundour dmiddotiatrtcta aelaon primiddotaarily poundor sled dog poundood
The District 4 at chua aalaon take auaaer chua
Suaaer chuM aalaon eacapeaenta to the aaJor spawning areaa in the Yukon River drainage have been estimated by aerial survey poundrom fixed wing aircrapoundt on a conaiatant beaia since the early 1970~a Aerial surveys are aub)ect to error and variability due to weather and atraaa conditionbull~ tiaing opound the aurvey_relative to apewning stage and aubJectivity and experience on the part opound the observer The counta obteined are on1y indicea opound abundance ainca not all aalaon pre nt on the day opound the survey are uaually sean and earlier and later apawnera are not present However tbaaa indices if obtained under standardized conditions can be uaed to aonitor the relative abundance of spawning aacapeaenta Aerial aurveya ara the aoat poundeaaible aethod opound aeeeasing salmon bullbullcapeaenta in terme of coat and atepoundpound 1~a~tationa ~n a watershed as i-enae and reaote bullbull that opound the Yukon River
The Alaska Departaent of Fiah _and Gaae ltADFampGgt baa continued the aerial survey prograa while intensively studying a few iaportant and representative tributary streea aa1aon apawning populet~ona The Anvik and Andreepoundaky Rivera have been choaen for auaaer chum aalaon reaearch studies Thia report preaenta reaulta opound these atudiea poundor the 1986 poundiald aeaaon and prov~dea recoaaendations for 1987 proJect operations
ANVIK RIVER SALMON STUDY
The Anvik River ltFigura 2) originates at an elevation opound ~300
feat and pound1owa in a southerly direction epproxiaately 120 ailea to ~ta aouth at aile 318 opound the Yukon River It ia a narrow runopoundpound atreaa with a auoatrate opound gravel and cobb1e except in tha upper reach where bedrock 1a exposed The Ve1low River ~ a aaJor tributary opound the Anvik and ia stained with tannic acid runepoundpound Downatreaa opound the Yellow River conpoundluence the Anvik R~ver changea poundroa a aoderate gradient ayatea to a low gradient ayatea aaandering through a auch broader poundlood plain Water clarity ~a
reduced downatreabull of the Yellow River Huaaroue oxoowa_ old channel cutopoundpounda and alougha are poundound throughout the lower river
Salaon eacapeaent waa enuaerated poundrca counting towera located above the Ye~low River poundroa 1972 to 1978 A aite S-112 ailea above the Vbullllow River waa uaed frobull 1972 to 197~ and a aite at Robinhood Creek 2-112 ailea above the Yellow River_ was used froa 1976 to 1978 Aerial aurveya werbull poundlown each year ltexcept 19741 in poundixed-wing aircraft to eatiaate aalbullon abundance below the tower aite High and turb~d water opoundten epoundpoundecta the accuracy opound viaual aalaon enuaeration froa counting towers and a~rcrapoundt
The Electrodynaaica Diviaion opound the Bendix Corporation developed
3
bull bull
4
s w gt - c ~ gt pound lt Ql ~
+J
0
0 lttl
N
Ql $ I en
a aide-scanning sonar counter during the 1970s capab~e opound detacting and counting aa~aon aigrating a~ong the banks opound tributary streaaa The sonar counter ia designed to transMit a sonic beaa a~ong bull 60 poundoot aluminua tube~ or substrata Echoes poundrobull aa~aon paaaing through the beebull are repoundlected back to the transducer The systea electronicamp interpret the strength and nuaber opound the echoea and tally aalaon counta Criteria poundor strength and poundrequency opound the echoes ere designed to optiD~ze
counting opound aelaon and ainiaize any non-salmon counts ltie debris or other poundiah epecieal SalMon eacapaaent was enuaerated by aonar beginning in 1979~ rep~acing and proving superior to the tower counting aathod One sonar counter has been installed on each bank os the Anvik River near Theodore Creek each year Aerial survey data indicates that virtually all suaaer chua salmon spawnerbull are poundound upatreaa opound this site
Methods and Materials
Two 1978 Model aonar counters were operated without art1poundicia~
aluainua substrate tubea throughout the season poundor the second consecutive year Each sonar transducer was aounted on a ~ectangular aluainubull poundraaa The eaat and weat bank sites used in previous yaera were probed to locate unipoundora river bottoa gradients that would provide optiaua aurpoundaees poundor insonipoundication Two ateei pipes were aet into the river bottoa on each aide opound the river onto which the transducer poundraaea were guided by aide aounted ateei sleeves Counting rangea were set such that the entire width opound the river was inaonipoundied Weirs prevented salmon peaaage inahore opound the transducer on each banmiddotk Transducers were eoved inahora or opoundpoundahore as required by poundluctuating water lavela
Sonar counts were totaled electronically in twelve sectors poundor each bank and printed hourly Sector counts missing as a result opound debris or printer aa~poundunction were eatiaated by averag1ng the counta in tbe aaaa sector poundor the hour bepoundore and apoundter the sector count in queation Counts ware totaled daily poundor each bank uaing an e~ectronic calculator and the eeat and weat bank totala auaaed to obtain a daily eacapement estimate Since summer chum aalaon greatly outnuaber chinookbull and pinka and the counters do not diatingu~ah between apec~es opound aalaon~ all aonar counts were attributed to auaaer chua salaon A separate eacapament estibullste poundor chinook aalbullon waa obtained by aerial survey
Each sonar counter waa calibrated poundour tiaes daily by obaerv~ng
poundiah paaaage with an oscilloscope poundor a 15 ainute period Salmon paaaing through tha aonar beaa produce a distinct oscilloecope trace Sonar and oacilloscope counts poundor each calibration period were related in the oraula Q=SSSC~ where SS = aide acan sonar counta an~ SC bull oacilloacope counta The existing poundiah velocity bullbulltting waa aultiplied by Q to obtain tbe correct new setting ipound the dispounderence between the counts waa greater than 15~ The ayatea waa then recalibrated at the new setting A record waa kept opound all adJuatmenta to the sonar equipment Fish peaaage was
5
viauelly enuaereted poundrobull ~0 poundt counting towers during sonar calibration ~ioda as a poundurther check on aonar accuracy whenever water and light cond~tiona allowed Polaroid sunglaaaea were worn to reduce water aurpoundace glare
Daily sonar counts were adJusted apoundter the poundield aeason baaed on the calibration date The daily adJUStment poundactor ia the sua opound calibrat~on oscilloscope counts poundor that day divided by the aua opound cel~bration aoner counts poundor tnat day Deily aonar counts were aultiplied by the daily adJuatent poundactor to obtain corrected daily sonar counta Mean and standard deviation opound date opound paaaage were calculated poundollowing the aethod presented by Mundy (1982)
Water depth propoundile at the sonar aite waa aeoaured at 3 a intervals across the width opound the river by probing with a pole aarked in 1 em incrementa Clibullatological data were collected at noon each day at the caapsite A pole aarked 1n 1 ca increaents waa aat in the river Changes in water depth are presented as negative or positive poundroa the initial reading opound 0 em Water teaperature waa aaaaurad in degreea centigrade near shore at a depth opound about 05 bullmiddot Daily aex~aua and miniaua air temperatures were recorded in degrees centigrade SubJective notes were kept by the crew describing wind speed end direction cloud cover and precipitation
A beach seine lt100 poundt long GG aeahaa deep 2-112 in aeah) was set near the aonar aita to capture chua and chinook aalaon poundor ega bullbullx~ and aize aeaaurebullenta Chua and chinook salmon were placed in a holding pen identipoundiad by sex measured poundroa mid-eye to poundark opound tail in bullbullbull and ona scale wea taken poundor age deteraination Scales were reaoved poundroa en area posterior to the baaa opound the dorsal poundin and above the lateral line on the lepoundt aide opound the poundiah The adipoae poundin was clipped on each poundiah bepoundore release to prevent reaaapling Chinook salmon carcaaaea were aaapled in Auguat to auppleaant the beach seine saaple Three acalea were taken poundroa each carcass Scale aamplaa were later pressed on acetate carda and the resulting impressions viewed on a aicropoundiche reader poundor age deteraination
Reaulta and Diacuaaion
Two aonar counterbull ware operated poundroa 21 June through 15 July at approx~aately the aaae aitea used in previous yeara ltFigure 3gt The east bank transducer waa located along a cutbank 37 bull opoundpoundahore and at a depth opound 87 em The west bank transducer was located along a gradually aloping gravel bar approxibullately 60 bull downatreaa poundroa the aaat bank aite The transducer was 152 m opoundpoundahora and at a depth opound 61 ca The entire width opound the river between the tranaducera was insonipound1ad River bottobull gradient was aaooth with no obatructiona to the sonar beaa and bullaximua depth waa 149 ca ea aeaaured on 23 3une ltFigure 3)
River water level waa opound noraal height poundor the time opound year when
6
Eaat Bank
Wea-t Bank
Figure 3 Map of the Anvik River sonar site and river depth profiles as measured on 23 June 1986 for the west bank and on 25 June 1986 for the east bank Shaded areas show approximate range of insonification on these dates weirs are indicated with cross hatching Unequal scale of the axes distorts the presentation
7
the crew arr1ved to begin proJect operations Below average anowpack in the drainage and below average rainpoundall in the spring and ear~y auaaer resulted in steadily declining water levels throughout aonar proJect operation-CFigure 4) Moderate increases in water level on 22 and 27 June were due to pulses opound high water in the Yukon River poundroa heavy rainpoundall in the upper portion opound the Yukon River drainage These pulabullbull opound high water had the epoundfect opound backing up the discharge opound water poundroa the Anvik River drainage Water taaperatura ranged poundroa a low opound 9 C on 26 3une to a high opound ~8 C on 5 3uly while air teaperatura ranged poundroa a low daily ainiaua opound 2 c on 14 3uly to a high daily aaxiaua opound 29 C on 4 July
Sonar anubulleration waa scheduled to continue until 28 July ipound neceaaary but eaergency budget reductiona resulted in teraination opound counting on 15 July Signipoundicant numberbull opound poundish were still being counted at that tiae The adJusted escapement count poundor the period 21 June through ~5 3uly waa 1085750 suaaer chua aa~aon ltTable 1gt A peak adJusted daily count opound 117778 poundish occurred on 30 June which repreaented 108~ opound the total aaaaon sonar count Escapeaent tiaing appeared to be relatively early aa it had been in 1979 198~ and 1983 CFigure 5) Mean date opound run paasege waa 3 July with a standard deviation opound 505 daya The caleulated aean and standard deviation are apoundpoundected by premature termination opound the pro)ect
The cuaulative bullbullcapeaent count for the period 21 June through 15 July opound 1085750 auaaer ehua salaon can be expanded to a total season eacapeaent estimate baaed on historical eacapeent tiaing petterna An average opound 873~ opound the total aeaaon sonar count occurred apoundter 15 July poundor previous years lt1979 1981 and 1963gt with an early tiaing pattern aoat aiailar to that opound 1986 Applying this axpanaion poundactor results in a total seaaon eacapeent eatiaate opound ~189602 auaaer chua aalaon poundor 1986
Historical eacapeaent tiaing patterns were uaed on an in-aeason baaia to proJeet the poundinal eacapeaent eatiaate poundor poundiahery aanagebullent purpoaes Sonar counts poundor the period 21-29 June input into the average tiaing curve poundor an early escapement timing pattern (baaed on 1979 1981 and 1983gt resulted in e proJect~on os 1291000 auaae~ chua aalaon This waa w~thin 9~ opound the actue~ poundinal eacepeaent eatiaata opound 1189602 poundiah
Buk~ia (19$2) expanded the aeason eacapeaent eatimatea poundo~ ~972
through 1978 aak1ng it poaaible to aore directly compare viaual count eatiaatea pound~obull thoae yaara with the aore recent aonar count eatiaatee ltFigure 6) The 1986 eacapeaent eatiaate opound 1189602 auaaar chua aa~aon waa second only to the ~981 eacapeaent opound nearly 13 ail~ion poundiah waa 24 tiaaa greater than the eacapeaant obJective opound 487000 poundiah ltADFG 1985gt and was 20 tiaea greater than the long tera lt1972-1985gt average opound 587714 poundish
A total opound 2423 houra opound aonar calibration waa conducted over a 25 day period at the weat bank aite and sonar accuracy ltsonar
8
I I
I I
1 986 MINMAX AIR TEMPERATURE 30 u 28
2-4
22
20
18 1a
10
bull bull 2
0 111-lt1 2-tun Oa-Jwl
a UINIMUM
1 986 WATER TEMPERATURE
~~----------------------------------------- 1 13 11 10
bull a 7
bull
n 1~IUI
bull I I bull
21a-Jun
1986 RELATIVE WATER DEPTH
0~~----------------------------------------
-10
-20
I =~ -bulloj -10-
-80+-~middot~bull-rbull~~~~middot~middot-middot~middot~middot~~middot~middot~~middot~middotmiddotbull-rbull~middot~~~~~ 18-Jun
Figure 4 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the Anvik River sonar site 1986
9
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
LIST OF FIGURES ltCONTINUEDgt
20 Run tibullining opound Yukon River auaaar chua aa~aon in 1986 aa indicated by catchea aonar counts or tower eounta at poundour aitea Mean date opound run paaaage ia indicated by ahaded bar and atandard deviation ltSDgt opound the mean ia given bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullmiddotbullmiddotbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot 37
v
Appendix ~~~
LIST OF APPENDICES
1 Anvik River aalbullon beach aeine catch by apeciea~ aex and date 1986 bullmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullbullbullbullbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbull 40
2 Age and bullbullx capoaition opound Anvik River auamar chua aalaon eacapement bull-plea ~ 1972-1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 41
3 Age and aex coapoaition opound Anvik River chinook aalaon aacapeaent aaaplea 1972-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 42
4 Eaat Fork Andraapoundaky River auaaer chua aalaon tower counta by hour and date 1986 with count eatiaation poundorbullulea derived poundrobull the data poundor bulliaaing t ibullbull blocka bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 43
5 Eeat Fork Andreepoundaky River chinook salmon tower counta by hour and date 1986 with count eatibullation poundorbullu~aa derived poundrobull the data poundor bulliaaing time blocks bullbullbullbullbullbullbullbull 44
6 Eaat Fork Andreapoundaky River pink aalaon tower counta by hour and date 1986 with count estiMation poundoraulaa derived poundrobull theae data poundor aiaaing t~ae b~ocka bullbullbullbullbullbullbullbull 45
7 Eaat Fork Andreapoundaky River aalaon beech bullbull~na catch by apeciea x end date 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 46
a Age and aex coapoeition opound Eaat Fork Andreapoundaky River au ar chua aalbullon eacapaaent aabullplea 1981-1986 bullbullbullbullbullbullbull 47
9 Age end aex coapoaition opound Andreapoundaky River ch~nook
aalaon eacapebullent aaaplea 1981-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 48
vi
rNTRODUCTION
The Anvik and Andreafaky Rivera are the two la~geet producers opound eumaer chua aalaon ltQ~pound~~~~~gbY ~~~~) in the Yukon River dra~nage ltFigure 1gt Buklia lt1982) eatiaetad that the Anvik River alone acoounta poundor 3~ opound the total production Other _ kno~n maJor spawning populations occur in the Redo Nulato Giaaaa Hogatza Melozitna Tozitna Chene and Salcha Rivra Suamer chua salmon spawn in leaaer nuabara in other tributariea opound the Yukon River Chinook ltQ~ ~~~~y~~~~gt and pink ltQ~ 92~~~~~~) aelaon occur in the Anvik and Andreapoundsky Rivera coincidentally with auaae~ chua aelbullon while coho aalaon ltQ~ ~~~~~=~gt are known to occur in smell nuabera in the poundall but their abundance ia not aonitored
Coaaerc~al and aubaistence poundiaheriea that harveat Anvik and Andreapoundaky River auaaer chua aelaon occur throughout tha aainatea Yukon River poundrca the coaat opound the delta to the aoutha opound the respective tributary atraaaa Set and dripoundt gillnets are the legal poundiahing gear in Districts 1 2 and 3 whi~bull aat gil~neta and poundiahwbeela aay be uaad in District 4 Moat opound the epoundpoundort and harvest occurs in Diatricta 1 and 2 and in the lower po~tion opound District 4 near the Anvik River Fiah taken coamercially in the lower three diatricta are poundrash poundrozen while District 4 ia a roe poundiahery due to aarket conditions and pound~eah quality Coamercial and aubaiatence auamer chua aa~aon poundiaher~bullbull in the reaainder opound District 4 end in District 6 are supported by atocka other than thoae opound tha Andreapoundaky and Anvik Rivera Very poundew auaaer chua salaon are harveated in Diatrict S due to the lack of significant apawning populat~ona in that portion opound the drainage Thera are no acale pattern electrophoretic o~ mark-recapture stock 1dentipoundication data availab~e on Yukon River suaaer chua ae~aon
Ch~nook aalaon are tbe target apeciea of the ~o~r Yukon River ltDiatricta 1 2 and 3gt coaaercial poundiahery during 3une and early July Fiahing ia uaually peraitted with unreatricted aeah aize gillnata until changeover to 6 inch aexiaua aeah aize is required by Eaergency Order In aoat years tha aaJOrity opound the auaaer chum aalaon run haa paaaed through the lower river districts before the changeover to chua aalaon gear Aa a result moat opound the aubullaer chubull aalaon coaaerc~a~ harvest in the lower Yukon ia uauelly taken poundroa tha later portion opound the run
The Board opound Fieber~bullbull directed that beginning with the 1985 aeaaon there aay be apecial saall aeah gear openninga dur1ng the chinook aalaon aeaaon to opt~aize harvest opound suaaer chua aalaon Thie would require that a relatively large auaaer chua aalaon run ia in progress and that the incidental harvest opound chinook aa~aon would not ba aubatential enough to have an adverse apoundpoundect on the aenagaaent opound that species Theae criteria ware JUdged to have baan bullbullt in 1986 and special restricted lt6 maxiauagt aeah size poundiahing parioda were aatabliahed in the lower river coaaercial
1
Hogatza R
334-40
=middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot~ middotmiddotmiddot-middot-middot middot-middotmiddot~
Fishing District Boundaries
Major St1IIIrer Chum Salmgtn Spawning Areas
Figure middot1 Map of the Yukon River showing fishing districts and major summer chum salmon spawning areas
fiahery dUr~ng the chinook aa1mon aeaaon coaaercial poundiahery ia directed priaarily Subaiatence poundiaheriea in all poundour dmiddotiatrtcta aelaon primiddotaarily poundor sled dog poundood
The District 4 at chua aalaon take auaaer chua
Suaaer chuM aalaon eacapeaenta to the aaJor spawning areaa in the Yukon River drainage have been estimated by aerial survey poundrom fixed wing aircrapoundt on a conaiatant beaia since the early 1970~a Aerial surveys are aub)ect to error and variability due to weather and atraaa conditionbull~ tiaing opound the aurvey_relative to apewning stage and aubJectivity and experience on the part opound the observer The counta obteined are on1y indicea opound abundance ainca not all aalaon pre nt on the day opound the survey are uaually sean and earlier and later apawnera are not present However tbaaa indices if obtained under standardized conditions can be uaed to aonitor the relative abundance of spawning aacapeaenta Aerial aurveya ara the aoat poundeaaible aethod opound aeeeasing salmon bullbullcapeaenta in terme of coat and atepoundpound 1~a~tationa ~n a watershed as i-enae and reaote bullbull that opound the Yukon River
The Alaska Departaent of Fiah _and Gaae ltADFampGgt baa continued the aerial survey prograa while intensively studying a few iaportant and representative tributary streea aa1aon apawning populet~ona The Anvik and Andreepoundaky Rivera have been choaen for auaaer chum aalaon reaearch studies Thia report preaenta reaulta opound these atudiea poundor the 1986 poundiald aeaaon and prov~dea recoaaendations for 1987 proJect operations
ANVIK RIVER SALMON STUDY
The Anvik River ltFigura 2) originates at an elevation opound ~300
feat and pound1owa in a southerly direction epproxiaately 120 ailea to ~ta aouth at aile 318 opound the Yukon River It ia a narrow runopoundpound atreaa with a auoatrate opound gravel and cobb1e except in tha upper reach where bedrock 1a exposed The Ve1low River ~ a aaJor tributary opound the Anvik and ia stained with tannic acid runepoundpound Downatreaa opound the Yellow River conpoundluence the Anvik R~ver changea poundroa a aoderate gradient ayatea to a low gradient ayatea aaandering through a auch broader poundlood plain Water clarity ~a
reduced downatreabull of the Yellow River Huaaroue oxoowa_ old channel cutopoundpounda and alougha are poundound throughout the lower river
Salaon eacapeaent waa enuaerated poundrca counting towera located above the Ye~low River poundroa 1972 to 1978 A aite S-112 ailea above the Vbullllow River waa uaed frobull 1972 to 197~ and a aite at Robinhood Creek 2-112 ailea above the Yellow River_ was used froa 1976 to 1978 Aerial aurveya werbull poundlown each year ltexcept 19741 in poundixed-wing aircraft to eatiaate aalbullon abundance below the tower aite High and turb~d water opoundten epoundpoundecta the accuracy opound viaual aalaon enuaeration froa counting towers and a~rcrapoundt
The Electrodynaaica Diviaion opound the Bendix Corporation developed
3
bull bull
4
s w gt - c ~ gt pound lt Ql ~
+J
0
0 lttl
N
Ql $ I en
a aide-scanning sonar counter during the 1970s capab~e opound detacting and counting aa~aon aigrating a~ong the banks opound tributary streaaa The sonar counter ia designed to transMit a sonic beaa a~ong bull 60 poundoot aluminua tube~ or substrata Echoes poundrobull aa~aon paaaing through the beebull are repoundlected back to the transducer The systea electronicamp interpret the strength and nuaber opound the echoea and tally aalaon counta Criteria poundor strength and poundrequency opound the echoes ere designed to optiD~ze
counting opound aelaon and ainiaize any non-salmon counts ltie debris or other poundiah epecieal SalMon eacapaaent was enuaerated by aonar beginning in 1979~ rep~acing and proving superior to the tower counting aathod One sonar counter has been installed on each bank os the Anvik River near Theodore Creek each year Aerial survey data indicates that virtually all suaaer chua salmon spawnerbull are poundound upatreaa opound this site
Methods and Materials
Two 1978 Model aonar counters were operated without art1poundicia~
aluainua substrate tubea throughout the season poundor the second consecutive year Each sonar transducer was aounted on a ~ectangular aluainubull poundraaa The eaat and weat bank sites used in previous yaera were probed to locate unipoundora river bottoa gradients that would provide optiaua aurpoundaees poundor insonipoundication Two ateei pipes were aet into the river bottoa on each aide opound the river onto which the transducer poundraaea were guided by aide aounted ateei sleeves Counting rangea were set such that the entire width opound the river was inaonipoundied Weirs prevented salmon peaaage inahore opound the transducer on each banmiddotk Transducers were eoved inahora or opoundpoundahore as required by poundluctuating water lavela
Sonar counts were totaled electronically in twelve sectors poundor each bank and printed hourly Sector counts missing as a result opound debris or printer aa~poundunction were eatiaated by averag1ng the counta in tbe aaaa sector poundor the hour bepoundore and apoundter the sector count in queation Counts ware totaled daily poundor each bank uaing an e~ectronic calculator and the eeat and weat bank totala auaaed to obtain a daily eacapement estimate Since summer chum aalaon greatly outnuaber chinookbull and pinka and the counters do not diatingu~ah between apec~es opound aalaon~ all aonar counts were attributed to auaaer chua salaon A separate eacapament estibullste poundor chinook aalbullon waa obtained by aerial survey
Each sonar counter waa calibrated poundour tiaes daily by obaerv~ng
poundiah paaaage with an oscilloscope poundor a 15 ainute period Salmon paaaing through tha aonar beaa produce a distinct oscilloecope trace Sonar and oacilloscope counts poundor each calibration period were related in the oraula Q=SSSC~ where SS = aide acan sonar counta an~ SC bull oacilloacope counta The existing poundiah velocity bullbulltting waa aultiplied by Q to obtain tbe correct new setting ipound the dispounderence between the counts waa greater than 15~ The ayatea waa then recalibrated at the new setting A record waa kept opound all adJuatmenta to the sonar equipment Fish peaaage was
5
viauelly enuaereted poundrobull ~0 poundt counting towers during sonar calibration ~ioda as a poundurther check on aonar accuracy whenever water and light cond~tiona allowed Polaroid sunglaaaea were worn to reduce water aurpoundace glare
Daily sonar counts were adJusted apoundter the poundield aeason baaed on the calibration date The daily adJUStment poundactor ia the sua opound calibrat~on oscilloscope counts poundor that day divided by the aua opound cel~bration aoner counts poundor tnat day Deily aonar counts were aultiplied by the daily adJuatent poundactor to obtain corrected daily sonar counta Mean and standard deviation opound date opound paaaage were calculated poundollowing the aethod presented by Mundy (1982)
Water depth propoundile at the sonar aite waa aeoaured at 3 a intervals across the width opound the river by probing with a pole aarked in 1 em incrementa Clibullatological data were collected at noon each day at the caapsite A pole aarked 1n 1 ca increaents waa aat in the river Changes in water depth are presented as negative or positive poundroa the initial reading opound 0 em Water teaperature waa aaaaurad in degreea centigrade near shore at a depth opound about 05 bullmiddot Daily aex~aua and miniaua air temperatures were recorded in degrees centigrade SubJective notes were kept by the crew describing wind speed end direction cloud cover and precipitation
A beach seine lt100 poundt long GG aeahaa deep 2-112 in aeah) was set near the aonar aita to capture chua and chinook aalaon poundor ega bullbullx~ and aize aeaaurebullenta Chua and chinook salmon were placed in a holding pen identipoundiad by sex measured poundroa mid-eye to poundark opound tail in bullbullbull and ona scale wea taken poundor age deteraination Scales were reaoved poundroa en area posterior to the baaa opound the dorsal poundin and above the lateral line on the lepoundt aide opound the poundiah The adipoae poundin was clipped on each poundiah bepoundore release to prevent reaaapling Chinook salmon carcaaaea were aaapled in Auguat to auppleaant the beach seine saaple Three acalea were taken poundroa each carcass Scale aamplaa were later pressed on acetate carda and the resulting impressions viewed on a aicropoundiche reader poundor age deteraination
Reaulta and Diacuaaion
Two aonar counterbull ware operated poundroa 21 June through 15 July at approx~aately the aaae aitea used in previous yeara ltFigure 3gt The east bank transducer waa located along a cutbank 37 bull opoundpoundahore and at a depth opound 87 em The west bank transducer was located along a gradually aloping gravel bar approxibullately 60 bull downatreaa poundroa the aaat bank aite The transducer was 152 m opoundpoundahora and at a depth opound 61 ca The entire width opound the river between the tranaducera was insonipound1ad River bottobull gradient was aaooth with no obatructiona to the sonar beaa and bullaximua depth waa 149 ca ea aeaaured on 23 3une ltFigure 3)
River water level waa opound noraal height poundor the time opound year when
6
Eaat Bank
Wea-t Bank
Figure 3 Map of the Anvik River sonar site and river depth profiles as measured on 23 June 1986 for the west bank and on 25 June 1986 for the east bank Shaded areas show approximate range of insonification on these dates weirs are indicated with cross hatching Unequal scale of the axes distorts the presentation
7
the crew arr1ved to begin proJect operations Below average anowpack in the drainage and below average rainpoundall in the spring and ear~y auaaer resulted in steadily declining water levels throughout aonar proJect operation-CFigure 4) Moderate increases in water level on 22 and 27 June were due to pulses opound high water in the Yukon River poundroa heavy rainpoundall in the upper portion opound the Yukon River drainage These pulabullbull opound high water had the epoundfect opound backing up the discharge opound water poundroa the Anvik River drainage Water taaperatura ranged poundroa a low opound 9 C on 26 3une to a high opound ~8 C on 5 3uly while air teaperatura ranged poundroa a low daily ainiaua opound 2 c on 14 3uly to a high daily aaxiaua opound 29 C on 4 July
Sonar anubulleration waa scheduled to continue until 28 July ipound neceaaary but eaergency budget reductiona resulted in teraination opound counting on 15 July Signipoundicant numberbull opound poundish were still being counted at that tiae The adJusted escapement count poundor the period 21 June through ~5 3uly waa 1085750 suaaer chua aa~aon ltTable 1gt A peak adJusted daily count opound 117778 poundish occurred on 30 June which repreaented 108~ opound the total aaaaon sonar count Escapeaent tiaing appeared to be relatively early aa it had been in 1979 198~ and 1983 CFigure 5) Mean date opound run paasege waa 3 July with a standard deviation opound 505 daya The caleulated aean and standard deviation are apoundpoundected by premature termination opound the pro)ect
The cuaulative bullbullcapeaent count for the period 21 June through 15 July opound 1085750 auaaer ehua salaon can be expanded to a total season eacapeaent estimate baaed on historical eacapeent tiaing petterna An average opound 873~ opound the total aeaaon sonar count occurred apoundter 15 July poundor previous years lt1979 1981 and 1963gt with an early tiaing pattern aoat aiailar to that opound 1986 Applying this axpanaion poundactor results in a total seaaon eacapeent eatiaate opound ~189602 auaaer chua aalaon poundor 1986
Historical eacapeaent tiaing patterns were uaed on an in-aeason baaia to proJeet the poundinal eacapeaent eatiaate poundor poundiahery aanagebullent purpoaes Sonar counts poundor the period 21-29 June input into the average tiaing curve poundor an early escapement timing pattern (baaed on 1979 1981 and 1983gt resulted in e proJect~on os 1291000 auaae~ chua aalaon This waa w~thin 9~ opound the actue~ poundinal eacepeaent eatiaata opound 1189602 poundiah
Buk~ia (19$2) expanded the aeason eacapeaent eatimatea poundo~ ~972
through 1978 aak1ng it poaaible to aore directly compare viaual count eatiaatea pound~obull thoae yaara with the aore recent aonar count eatiaatee ltFigure 6) The 1986 eacapeaent eatiaate opound 1189602 auaaar chua aa~aon waa second only to the ~981 eacapeaent opound nearly 13 ail~ion poundiah waa 24 tiaaa greater than the eacapeaant obJective opound 487000 poundiah ltADFG 1985gt and was 20 tiaea greater than the long tera lt1972-1985gt average opound 587714 poundish
A total opound 2423 houra opound aonar calibration waa conducted over a 25 day period at the weat bank aite and sonar accuracy ltsonar
8
I I
I I
1 986 MINMAX AIR TEMPERATURE 30 u 28
2-4
22
20
18 1a
10
bull bull 2
0 111-lt1 2-tun Oa-Jwl
a UINIMUM
1 986 WATER TEMPERATURE
~~----------------------------------------- 1 13 11 10
bull a 7
bull
n 1~IUI
bull I I bull
21a-Jun
1986 RELATIVE WATER DEPTH
0~~----------------------------------------
-10
-20
I =~ -bulloj -10-
-80+-~middot~bull-rbull~~~~middot~middot-middot~middot~middot~~middot~middot~~middot~middotmiddotbull-rbull~middot~~~~~ 18-Jun
Figure 4 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the Anvik River sonar site 1986
9
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
Appendix ~~~
LIST OF APPENDICES
1 Anvik River aalbullon beach aeine catch by apeciea~ aex and date 1986 bullmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbullbullbullbullbullbullbullbullbullbullbullbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotbullbullbull 40
2 Age and bullbullx capoaition opound Anvik River auamar chua aalaon eacapement bull-plea ~ 1972-1986 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 41
3 Age and aex coapoaition opound Anvik River chinook aalaon aacapeaent aaaplea 1972-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 42
4 Eaat Fork Andraapoundaky River auaaer chua aalaon tower counta by hour and date 1986 with count eatiaation poundorbullulea derived poundrobull the data poundor bulliaaing t ibullbull blocka bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 43
5 Eeat Fork Andreepoundaky River chinook salmon tower counta by hour and date 1986 with count eatibullation poundorbullu~aa derived poundrobull the data poundor bulliaaing time blocks bullbullbullbullbullbullbullbull 44
6 Eaat Fork Andreapoundaky River pink aalaon tower counta by hour and date 1986 with count estiMation poundoraulaa derived poundrobull theae data poundor aiaaing t~ae b~ocka bullbullbullbullbullbullbullbull 45
7 Eaat Fork Andreapoundaky River aalaon beech bullbull~na catch by apeciea x end date 1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 46
a Age and aex coapoeition opound Eaat Fork Andreapoundaky River au ar chua aalbullon eacapaaent aabullplea 1981-1986 bullbullbullbullbullbullbull 47
9 Age end aex coapoaition opound Andreapoundaky River ch~nook
aalaon eacapebullent aaaplea 1981-1986 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 48
vi
rNTRODUCTION
The Anvik and Andreafaky Rivera are the two la~geet producers opound eumaer chua aalaon ltQ~pound~~~~~gbY ~~~~) in the Yukon River dra~nage ltFigure 1gt Buklia lt1982) eatiaetad that the Anvik River alone acoounta poundor 3~ opound the total production Other _ kno~n maJor spawning populations occur in the Redo Nulato Giaaaa Hogatza Melozitna Tozitna Chene and Salcha Rivra Suamer chua salmon spawn in leaaer nuabara in other tributariea opound the Yukon River Chinook ltQ~ ~~~~y~~~~gt and pink ltQ~ 92~~~~~~) aelaon occur in the Anvik and Andreapoundsky Rivera coincidentally with auaae~ chua aelbullon while coho aalaon ltQ~ ~~~~~=~gt are known to occur in smell nuabera in the poundall but their abundance ia not aonitored
Coaaerc~al and aubaistence poundiaheriea that harveat Anvik and Andreapoundaky River auaaer chua aelaon occur throughout tha aainatea Yukon River poundrca the coaat opound the delta to the aoutha opound the respective tributary atraaaa Set and dripoundt gillnets are the legal poundiahing gear in Districts 1 2 and 3 whi~bull aat gil~neta and poundiahwbeela aay be uaad in District 4 Moat opound the epoundpoundort and harvest occurs in Diatricta 1 and 2 and in the lower po~tion opound District 4 near the Anvik River Fiah taken coamercially in the lower three diatricta are poundrash poundrozen while District 4 ia a roe poundiahery due to aarket conditions and pound~eah quality Coamercial and aubaiatence auamer chua aa~aon poundiaher~bullbull in the reaainder opound District 4 end in District 6 are supported by atocka other than thoae opound tha Andreapoundaky and Anvik Rivera Very poundew auaaer chua salaon are harveated in Diatrict S due to the lack of significant apawning populat~ona in that portion opound the drainage Thera are no acale pattern electrophoretic o~ mark-recapture stock 1dentipoundication data availab~e on Yukon River suaaer chua ae~aon
Ch~nook aalaon are tbe target apeciea of the ~o~r Yukon River ltDiatricta 1 2 and 3gt coaaercial poundiahery during 3une and early July Fiahing ia uaually peraitted with unreatricted aeah aize gillnata until changeover to 6 inch aexiaua aeah aize is required by Eaergency Order In aoat years tha aaJOrity opound the auaaer chum aalaon run haa paaaed through the lower river districts before the changeover to chua aalaon gear Aa a result moat opound the aubullaer chubull aalaon coaaerc~a~ harvest in the lower Yukon ia uauelly taken poundroa tha later portion opound the run
The Board opound Fieber~bullbull directed that beginning with the 1985 aeaaon there aay be apecial saall aeah gear openninga dur1ng the chinook aalaon aeaaon to opt~aize harvest opound suaaer chua aalaon Thie would require that a relatively large auaaer chua aalaon run ia in progress and that the incidental harvest opound chinook aa~aon would not ba aubatential enough to have an adverse apoundpoundect on the aenagaaent opound that species Theae criteria ware JUdged to have baan bullbullt in 1986 and special restricted lt6 maxiauagt aeah size poundiahing parioda were aatabliahed in the lower river coaaercial
1
Hogatza R
334-40
=middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot~ middotmiddotmiddot-middot-middot middot-middotmiddot~
Fishing District Boundaries
Major St1IIIrer Chum Salmgtn Spawning Areas
Figure middot1 Map of the Yukon River showing fishing districts and major summer chum salmon spawning areas
fiahery dUr~ng the chinook aa1mon aeaaon coaaercial poundiahery ia directed priaarily Subaiatence poundiaheriea in all poundour dmiddotiatrtcta aelaon primiddotaarily poundor sled dog poundood
The District 4 at chua aalaon take auaaer chua
Suaaer chuM aalaon eacapeaenta to the aaJor spawning areaa in the Yukon River drainage have been estimated by aerial survey poundrom fixed wing aircrapoundt on a conaiatant beaia since the early 1970~a Aerial surveys are aub)ect to error and variability due to weather and atraaa conditionbull~ tiaing opound the aurvey_relative to apewning stage and aubJectivity and experience on the part opound the observer The counta obteined are on1y indicea opound abundance ainca not all aalaon pre nt on the day opound the survey are uaually sean and earlier and later apawnera are not present However tbaaa indices if obtained under standardized conditions can be uaed to aonitor the relative abundance of spawning aacapeaenta Aerial aurveya ara the aoat poundeaaible aethod opound aeeeasing salmon bullbullcapeaenta in terme of coat and atepoundpound 1~a~tationa ~n a watershed as i-enae and reaote bullbull that opound the Yukon River
The Alaska Departaent of Fiah _and Gaae ltADFampGgt baa continued the aerial survey prograa while intensively studying a few iaportant and representative tributary streea aa1aon apawning populet~ona The Anvik and Andreepoundaky Rivera have been choaen for auaaer chum aalaon reaearch studies Thia report preaenta reaulta opound these atudiea poundor the 1986 poundiald aeaaon and prov~dea recoaaendations for 1987 proJect operations
ANVIK RIVER SALMON STUDY
The Anvik River ltFigura 2) originates at an elevation opound ~300
feat and pound1owa in a southerly direction epproxiaately 120 ailea to ~ta aouth at aile 318 opound the Yukon River It ia a narrow runopoundpound atreaa with a auoatrate opound gravel and cobb1e except in tha upper reach where bedrock 1a exposed The Ve1low River ~ a aaJor tributary opound the Anvik and ia stained with tannic acid runepoundpound Downatreaa opound the Yellow River conpoundluence the Anvik R~ver changea poundroa a aoderate gradient ayatea to a low gradient ayatea aaandering through a auch broader poundlood plain Water clarity ~a
reduced downatreabull of the Yellow River Huaaroue oxoowa_ old channel cutopoundpounda and alougha are poundound throughout the lower river
Salaon eacapeaent waa enuaerated poundrca counting towera located above the Ye~low River poundroa 1972 to 1978 A aite S-112 ailea above the Vbullllow River waa uaed frobull 1972 to 197~ and a aite at Robinhood Creek 2-112 ailea above the Yellow River_ was used froa 1976 to 1978 Aerial aurveya werbull poundlown each year ltexcept 19741 in poundixed-wing aircraft to eatiaate aalbullon abundance below the tower aite High and turb~d water opoundten epoundpoundecta the accuracy opound viaual aalaon enuaeration froa counting towers and a~rcrapoundt
The Electrodynaaica Diviaion opound the Bendix Corporation developed
3
bull bull
4
s w gt - c ~ gt pound lt Ql ~
+J
0
0 lttl
N
Ql $ I en
a aide-scanning sonar counter during the 1970s capab~e opound detacting and counting aa~aon aigrating a~ong the banks opound tributary streaaa The sonar counter ia designed to transMit a sonic beaa a~ong bull 60 poundoot aluminua tube~ or substrata Echoes poundrobull aa~aon paaaing through the beebull are repoundlected back to the transducer The systea electronicamp interpret the strength and nuaber opound the echoea and tally aalaon counta Criteria poundor strength and poundrequency opound the echoes ere designed to optiD~ze
counting opound aelaon and ainiaize any non-salmon counts ltie debris or other poundiah epecieal SalMon eacapaaent was enuaerated by aonar beginning in 1979~ rep~acing and proving superior to the tower counting aathod One sonar counter has been installed on each bank os the Anvik River near Theodore Creek each year Aerial survey data indicates that virtually all suaaer chua salmon spawnerbull are poundound upatreaa opound this site
Methods and Materials
Two 1978 Model aonar counters were operated without art1poundicia~
aluainua substrate tubea throughout the season poundor the second consecutive year Each sonar transducer was aounted on a ~ectangular aluainubull poundraaa The eaat and weat bank sites used in previous yaera were probed to locate unipoundora river bottoa gradients that would provide optiaua aurpoundaees poundor insonipoundication Two ateei pipes were aet into the river bottoa on each aide opound the river onto which the transducer poundraaea were guided by aide aounted ateei sleeves Counting rangea were set such that the entire width opound the river was inaonipoundied Weirs prevented salmon peaaage inahore opound the transducer on each banmiddotk Transducers were eoved inahora or opoundpoundahore as required by poundluctuating water lavela
Sonar counts were totaled electronically in twelve sectors poundor each bank and printed hourly Sector counts missing as a result opound debris or printer aa~poundunction were eatiaated by averag1ng the counta in tbe aaaa sector poundor the hour bepoundore and apoundter the sector count in queation Counts ware totaled daily poundor each bank uaing an e~ectronic calculator and the eeat and weat bank totala auaaed to obtain a daily eacapement estimate Since summer chum aalaon greatly outnuaber chinookbull and pinka and the counters do not diatingu~ah between apec~es opound aalaon~ all aonar counts were attributed to auaaer chua salaon A separate eacapament estibullste poundor chinook aalbullon waa obtained by aerial survey
Each sonar counter waa calibrated poundour tiaes daily by obaerv~ng
poundiah paaaage with an oscilloscope poundor a 15 ainute period Salmon paaaing through tha aonar beaa produce a distinct oscilloecope trace Sonar and oacilloscope counts poundor each calibration period were related in the oraula Q=SSSC~ where SS = aide acan sonar counta an~ SC bull oacilloacope counta The existing poundiah velocity bullbulltting waa aultiplied by Q to obtain tbe correct new setting ipound the dispounderence between the counts waa greater than 15~ The ayatea waa then recalibrated at the new setting A record waa kept opound all adJuatmenta to the sonar equipment Fish peaaage was
5
viauelly enuaereted poundrobull ~0 poundt counting towers during sonar calibration ~ioda as a poundurther check on aonar accuracy whenever water and light cond~tiona allowed Polaroid sunglaaaea were worn to reduce water aurpoundace glare
Daily sonar counts were adJusted apoundter the poundield aeason baaed on the calibration date The daily adJUStment poundactor ia the sua opound calibrat~on oscilloscope counts poundor that day divided by the aua opound cel~bration aoner counts poundor tnat day Deily aonar counts were aultiplied by the daily adJuatent poundactor to obtain corrected daily sonar counta Mean and standard deviation opound date opound paaaage were calculated poundollowing the aethod presented by Mundy (1982)
Water depth propoundile at the sonar aite waa aeoaured at 3 a intervals across the width opound the river by probing with a pole aarked in 1 em incrementa Clibullatological data were collected at noon each day at the caapsite A pole aarked 1n 1 ca increaents waa aat in the river Changes in water depth are presented as negative or positive poundroa the initial reading opound 0 em Water teaperature waa aaaaurad in degreea centigrade near shore at a depth opound about 05 bullmiddot Daily aex~aua and miniaua air temperatures were recorded in degrees centigrade SubJective notes were kept by the crew describing wind speed end direction cloud cover and precipitation
A beach seine lt100 poundt long GG aeahaa deep 2-112 in aeah) was set near the aonar aita to capture chua and chinook aalaon poundor ega bullbullx~ and aize aeaaurebullenta Chua and chinook salmon were placed in a holding pen identipoundiad by sex measured poundroa mid-eye to poundark opound tail in bullbullbull and ona scale wea taken poundor age deteraination Scales were reaoved poundroa en area posterior to the baaa opound the dorsal poundin and above the lateral line on the lepoundt aide opound the poundiah The adipoae poundin was clipped on each poundiah bepoundore release to prevent reaaapling Chinook salmon carcaaaea were aaapled in Auguat to auppleaant the beach seine saaple Three acalea were taken poundroa each carcass Scale aamplaa were later pressed on acetate carda and the resulting impressions viewed on a aicropoundiche reader poundor age deteraination
Reaulta and Diacuaaion
Two aonar counterbull ware operated poundroa 21 June through 15 July at approx~aately the aaae aitea used in previous yeara ltFigure 3gt The east bank transducer waa located along a cutbank 37 bull opoundpoundahore and at a depth opound 87 em The west bank transducer was located along a gradually aloping gravel bar approxibullately 60 bull downatreaa poundroa the aaat bank aite The transducer was 152 m opoundpoundahora and at a depth opound 61 ca The entire width opound the river between the tranaducera was insonipound1ad River bottobull gradient was aaooth with no obatructiona to the sonar beaa and bullaximua depth waa 149 ca ea aeaaured on 23 3une ltFigure 3)
River water level waa opound noraal height poundor the time opound year when
6
Eaat Bank
Wea-t Bank
Figure 3 Map of the Anvik River sonar site and river depth profiles as measured on 23 June 1986 for the west bank and on 25 June 1986 for the east bank Shaded areas show approximate range of insonification on these dates weirs are indicated with cross hatching Unequal scale of the axes distorts the presentation
7
the crew arr1ved to begin proJect operations Below average anowpack in the drainage and below average rainpoundall in the spring and ear~y auaaer resulted in steadily declining water levels throughout aonar proJect operation-CFigure 4) Moderate increases in water level on 22 and 27 June were due to pulses opound high water in the Yukon River poundroa heavy rainpoundall in the upper portion opound the Yukon River drainage These pulabullbull opound high water had the epoundfect opound backing up the discharge opound water poundroa the Anvik River drainage Water taaperatura ranged poundroa a low opound 9 C on 26 3une to a high opound ~8 C on 5 3uly while air teaperatura ranged poundroa a low daily ainiaua opound 2 c on 14 3uly to a high daily aaxiaua opound 29 C on 4 July
Sonar anubulleration waa scheduled to continue until 28 July ipound neceaaary but eaergency budget reductiona resulted in teraination opound counting on 15 July Signipoundicant numberbull opound poundish were still being counted at that tiae The adJusted escapement count poundor the period 21 June through ~5 3uly waa 1085750 suaaer chua aa~aon ltTable 1gt A peak adJusted daily count opound 117778 poundish occurred on 30 June which repreaented 108~ opound the total aaaaon sonar count Escapeaent tiaing appeared to be relatively early aa it had been in 1979 198~ and 1983 CFigure 5) Mean date opound run paasege waa 3 July with a standard deviation opound 505 daya The caleulated aean and standard deviation are apoundpoundected by premature termination opound the pro)ect
The cuaulative bullbullcapeaent count for the period 21 June through 15 July opound 1085750 auaaer ehua salaon can be expanded to a total season eacapeaent estimate baaed on historical eacapeent tiaing petterna An average opound 873~ opound the total aeaaon sonar count occurred apoundter 15 July poundor previous years lt1979 1981 and 1963gt with an early tiaing pattern aoat aiailar to that opound 1986 Applying this axpanaion poundactor results in a total seaaon eacapeent eatiaate opound ~189602 auaaer chua aalaon poundor 1986
Historical eacapeaent tiaing patterns were uaed on an in-aeason baaia to proJeet the poundinal eacapeaent eatiaate poundor poundiahery aanagebullent purpoaes Sonar counts poundor the period 21-29 June input into the average tiaing curve poundor an early escapement timing pattern (baaed on 1979 1981 and 1983gt resulted in e proJect~on os 1291000 auaae~ chua aalaon This waa w~thin 9~ opound the actue~ poundinal eacepeaent eatiaata opound 1189602 poundiah
Buk~ia (19$2) expanded the aeason eacapeaent eatimatea poundo~ ~972
through 1978 aak1ng it poaaible to aore directly compare viaual count eatiaatea pound~obull thoae yaara with the aore recent aonar count eatiaatee ltFigure 6) The 1986 eacapeaent eatiaate opound 1189602 auaaar chua aa~aon waa second only to the ~981 eacapeaent opound nearly 13 ail~ion poundiah waa 24 tiaaa greater than the eacapeaant obJective opound 487000 poundiah ltADFG 1985gt and was 20 tiaea greater than the long tera lt1972-1985gt average opound 587714 poundish
A total opound 2423 houra opound aonar calibration waa conducted over a 25 day period at the weat bank aite and sonar accuracy ltsonar
8
I I
I I
1 986 MINMAX AIR TEMPERATURE 30 u 28
2-4
22
20
18 1a
10
bull bull 2
0 111-lt1 2-tun Oa-Jwl
a UINIMUM
1 986 WATER TEMPERATURE
~~----------------------------------------- 1 13 11 10
bull a 7
bull
n 1~IUI
bull I I bull
21a-Jun
1986 RELATIVE WATER DEPTH
0~~----------------------------------------
-10
-20
I =~ -bulloj -10-
-80+-~middot~bull-rbull~~~~middot~middot-middot~middot~middot~~middot~middot~~middot~middotmiddotbull-rbull~middot~~~~~ 18-Jun
Figure 4 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the Anvik River sonar site 1986
9
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
rNTRODUCTION
The Anvik and Andreafaky Rivera are the two la~geet producers opound eumaer chua aalaon ltQ~pound~~~~~gbY ~~~~) in the Yukon River dra~nage ltFigure 1gt Buklia lt1982) eatiaetad that the Anvik River alone acoounta poundor 3~ opound the total production Other _ kno~n maJor spawning populations occur in the Redo Nulato Giaaaa Hogatza Melozitna Tozitna Chene and Salcha Rivra Suamer chua salmon spawn in leaaer nuabara in other tributariea opound the Yukon River Chinook ltQ~ ~~~~y~~~~gt and pink ltQ~ 92~~~~~~) aelaon occur in the Anvik and Andreapoundsky Rivera coincidentally with auaae~ chua aelbullon while coho aalaon ltQ~ ~~~~~=~gt are known to occur in smell nuabera in the poundall but their abundance ia not aonitored
Coaaerc~al and aubaistence poundiaheriea that harveat Anvik and Andreapoundaky River auaaer chua aelaon occur throughout tha aainatea Yukon River poundrca the coaat opound the delta to the aoutha opound the respective tributary atraaaa Set and dripoundt gillnets are the legal poundiahing gear in Districts 1 2 and 3 whi~bull aat gil~neta and poundiahwbeela aay be uaad in District 4 Moat opound the epoundpoundort and harvest occurs in Diatricta 1 and 2 and in the lower po~tion opound District 4 near the Anvik River Fiah taken coamercially in the lower three diatricta are poundrash poundrozen while District 4 ia a roe poundiahery due to aarket conditions and pound~eah quality Coamercial and aubaiatence auamer chua aa~aon poundiaher~bullbull in the reaainder opound District 4 end in District 6 are supported by atocka other than thoae opound tha Andreapoundaky and Anvik Rivera Very poundew auaaer chua salaon are harveated in Diatrict S due to the lack of significant apawning populat~ona in that portion opound the drainage Thera are no acale pattern electrophoretic o~ mark-recapture stock 1dentipoundication data availab~e on Yukon River suaaer chua ae~aon
Ch~nook aalaon are tbe target apeciea of the ~o~r Yukon River ltDiatricta 1 2 and 3gt coaaercial poundiahery during 3une and early July Fiahing ia uaually peraitted with unreatricted aeah aize gillnata until changeover to 6 inch aexiaua aeah aize is required by Eaergency Order In aoat years tha aaJOrity opound the auaaer chum aalaon run haa paaaed through the lower river districts before the changeover to chua aalaon gear Aa a result moat opound the aubullaer chubull aalaon coaaerc~a~ harvest in the lower Yukon ia uauelly taken poundroa tha later portion opound the run
The Board opound Fieber~bullbull directed that beginning with the 1985 aeaaon there aay be apecial saall aeah gear openninga dur1ng the chinook aalaon aeaaon to opt~aize harvest opound suaaer chua aalaon Thie would require that a relatively large auaaer chua aalaon run ia in progress and that the incidental harvest opound chinook aa~aon would not ba aubatential enough to have an adverse apoundpoundect on the aenagaaent opound that species Theae criteria ware JUdged to have baan bullbullt in 1986 and special restricted lt6 maxiauagt aeah size poundiahing parioda were aatabliahed in the lower river coaaercial
1
Hogatza R
334-40
=middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot~ middotmiddotmiddot-middot-middot middot-middotmiddot~
Fishing District Boundaries
Major St1IIIrer Chum Salmgtn Spawning Areas
Figure middot1 Map of the Yukon River showing fishing districts and major summer chum salmon spawning areas
fiahery dUr~ng the chinook aa1mon aeaaon coaaercial poundiahery ia directed priaarily Subaiatence poundiaheriea in all poundour dmiddotiatrtcta aelaon primiddotaarily poundor sled dog poundood
The District 4 at chua aalaon take auaaer chua
Suaaer chuM aalaon eacapeaenta to the aaJor spawning areaa in the Yukon River drainage have been estimated by aerial survey poundrom fixed wing aircrapoundt on a conaiatant beaia since the early 1970~a Aerial surveys are aub)ect to error and variability due to weather and atraaa conditionbull~ tiaing opound the aurvey_relative to apewning stage and aubJectivity and experience on the part opound the observer The counta obteined are on1y indicea opound abundance ainca not all aalaon pre nt on the day opound the survey are uaually sean and earlier and later apawnera are not present However tbaaa indices if obtained under standardized conditions can be uaed to aonitor the relative abundance of spawning aacapeaenta Aerial aurveya ara the aoat poundeaaible aethod opound aeeeasing salmon bullbullcapeaenta in terme of coat and atepoundpound 1~a~tationa ~n a watershed as i-enae and reaote bullbull that opound the Yukon River
The Alaska Departaent of Fiah _and Gaae ltADFampGgt baa continued the aerial survey prograa while intensively studying a few iaportant and representative tributary streea aa1aon apawning populet~ona The Anvik and Andreepoundaky Rivera have been choaen for auaaer chum aalaon reaearch studies Thia report preaenta reaulta opound these atudiea poundor the 1986 poundiald aeaaon and prov~dea recoaaendations for 1987 proJect operations
ANVIK RIVER SALMON STUDY
The Anvik River ltFigura 2) originates at an elevation opound ~300
feat and pound1owa in a southerly direction epproxiaately 120 ailea to ~ta aouth at aile 318 opound the Yukon River It ia a narrow runopoundpound atreaa with a auoatrate opound gravel and cobb1e except in tha upper reach where bedrock 1a exposed The Ve1low River ~ a aaJor tributary opound the Anvik and ia stained with tannic acid runepoundpound Downatreaa opound the Yellow River conpoundluence the Anvik R~ver changea poundroa a aoderate gradient ayatea to a low gradient ayatea aaandering through a auch broader poundlood plain Water clarity ~a
reduced downatreabull of the Yellow River Huaaroue oxoowa_ old channel cutopoundpounda and alougha are poundound throughout the lower river
Salaon eacapeaent waa enuaerated poundrca counting towera located above the Ye~low River poundroa 1972 to 1978 A aite S-112 ailea above the Vbullllow River waa uaed frobull 1972 to 197~ and a aite at Robinhood Creek 2-112 ailea above the Yellow River_ was used froa 1976 to 1978 Aerial aurveya werbull poundlown each year ltexcept 19741 in poundixed-wing aircraft to eatiaate aalbullon abundance below the tower aite High and turb~d water opoundten epoundpoundecta the accuracy opound viaual aalaon enuaeration froa counting towers and a~rcrapoundt
The Electrodynaaica Diviaion opound the Bendix Corporation developed
3
bull bull
4
s w gt - c ~ gt pound lt Ql ~
+J
0
0 lttl
N
Ql $ I en
a aide-scanning sonar counter during the 1970s capab~e opound detacting and counting aa~aon aigrating a~ong the banks opound tributary streaaa The sonar counter ia designed to transMit a sonic beaa a~ong bull 60 poundoot aluminua tube~ or substrata Echoes poundrobull aa~aon paaaing through the beebull are repoundlected back to the transducer The systea electronicamp interpret the strength and nuaber opound the echoea and tally aalaon counta Criteria poundor strength and poundrequency opound the echoes ere designed to optiD~ze
counting opound aelaon and ainiaize any non-salmon counts ltie debris or other poundiah epecieal SalMon eacapaaent was enuaerated by aonar beginning in 1979~ rep~acing and proving superior to the tower counting aathod One sonar counter has been installed on each bank os the Anvik River near Theodore Creek each year Aerial survey data indicates that virtually all suaaer chua salmon spawnerbull are poundound upatreaa opound this site
Methods and Materials
Two 1978 Model aonar counters were operated without art1poundicia~
aluainua substrate tubea throughout the season poundor the second consecutive year Each sonar transducer was aounted on a ~ectangular aluainubull poundraaa The eaat and weat bank sites used in previous yaera were probed to locate unipoundora river bottoa gradients that would provide optiaua aurpoundaees poundor insonipoundication Two ateei pipes were aet into the river bottoa on each aide opound the river onto which the transducer poundraaea were guided by aide aounted ateei sleeves Counting rangea were set such that the entire width opound the river was inaonipoundied Weirs prevented salmon peaaage inahore opound the transducer on each banmiddotk Transducers were eoved inahora or opoundpoundahore as required by poundluctuating water lavela
Sonar counts were totaled electronically in twelve sectors poundor each bank and printed hourly Sector counts missing as a result opound debris or printer aa~poundunction were eatiaated by averag1ng the counta in tbe aaaa sector poundor the hour bepoundore and apoundter the sector count in queation Counts ware totaled daily poundor each bank uaing an e~ectronic calculator and the eeat and weat bank totala auaaed to obtain a daily eacapement estimate Since summer chum aalaon greatly outnuaber chinookbull and pinka and the counters do not diatingu~ah between apec~es opound aalaon~ all aonar counts were attributed to auaaer chua salaon A separate eacapament estibullste poundor chinook aalbullon waa obtained by aerial survey
Each sonar counter waa calibrated poundour tiaes daily by obaerv~ng
poundiah paaaage with an oscilloscope poundor a 15 ainute period Salmon paaaing through tha aonar beaa produce a distinct oscilloecope trace Sonar and oacilloscope counts poundor each calibration period were related in the oraula Q=SSSC~ where SS = aide acan sonar counta an~ SC bull oacilloacope counta The existing poundiah velocity bullbulltting waa aultiplied by Q to obtain tbe correct new setting ipound the dispounderence between the counts waa greater than 15~ The ayatea waa then recalibrated at the new setting A record waa kept opound all adJuatmenta to the sonar equipment Fish peaaage was
5
viauelly enuaereted poundrobull ~0 poundt counting towers during sonar calibration ~ioda as a poundurther check on aonar accuracy whenever water and light cond~tiona allowed Polaroid sunglaaaea were worn to reduce water aurpoundace glare
Daily sonar counts were adJusted apoundter the poundield aeason baaed on the calibration date The daily adJUStment poundactor ia the sua opound calibrat~on oscilloscope counts poundor that day divided by the aua opound cel~bration aoner counts poundor tnat day Deily aonar counts were aultiplied by the daily adJuatent poundactor to obtain corrected daily sonar counta Mean and standard deviation opound date opound paaaage were calculated poundollowing the aethod presented by Mundy (1982)
Water depth propoundile at the sonar aite waa aeoaured at 3 a intervals across the width opound the river by probing with a pole aarked in 1 em incrementa Clibullatological data were collected at noon each day at the caapsite A pole aarked 1n 1 ca increaents waa aat in the river Changes in water depth are presented as negative or positive poundroa the initial reading opound 0 em Water teaperature waa aaaaurad in degreea centigrade near shore at a depth opound about 05 bullmiddot Daily aex~aua and miniaua air temperatures were recorded in degrees centigrade SubJective notes were kept by the crew describing wind speed end direction cloud cover and precipitation
A beach seine lt100 poundt long GG aeahaa deep 2-112 in aeah) was set near the aonar aita to capture chua and chinook aalaon poundor ega bullbullx~ and aize aeaaurebullenta Chua and chinook salmon were placed in a holding pen identipoundiad by sex measured poundroa mid-eye to poundark opound tail in bullbullbull and ona scale wea taken poundor age deteraination Scales were reaoved poundroa en area posterior to the baaa opound the dorsal poundin and above the lateral line on the lepoundt aide opound the poundiah The adipoae poundin was clipped on each poundiah bepoundore release to prevent reaaapling Chinook salmon carcaaaea were aaapled in Auguat to auppleaant the beach seine saaple Three acalea were taken poundroa each carcass Scale aamplaa were later pressed on acetate carda and the resulting impressions viewed on a aicropoundiche reader poundor age deteraination
Reaulta and Diacuaaion
Two aonar counterbull ware operated poundroa 21 June through 15 July at approx~aately the aaae aitea used in previous yeara ltFigure 3gt The east bank transducer waa located along a cutbank 37 bull opoundpoundahore and at a depth opound 87 em The west bank transducer was located along a gradually aloping gravel bar approxibullately 60 bull downatreaa poundroa the aaat bank aite The transducer was 152 m opoundpoundahora and at a depth opound 61 ca The entire width opound the river between the tranaducera was insonipound1ad River bottobull gradient was aaooth with no obatructiona to the sonar beaa and bullaximua depth waa 149 ca ea aeaaured on 23 3une ltFigure 3)
River water level waa opound noraal height poundor the time opound year when
6
Eaat Bank
Wea-t Bank
Figure 3 Map of the Anvik River sonar site and river depth profiles as measured on 23 June 1986 for the west bank and on 25 June 1986 for the east bank Shaded areas show approximate range of insonification on these dates weirs are indicated with cross hatching Unequal scale of the axes distorts the presentation
7
the crew arr1ved to begin proJect operations Below average anowpack in the drainage and below average rainpoundall in the spring and ear~y auaaer resulted in steadily declining water levels throughout aonar proJect operation-CFigure 4) Moderate increases in water level on 22 and 27 June were due to pulses opound high water in the Yukon River poundroa heavy rainpoundall in the upper portion opound the Yukon River drainage These pulabullbull opound high water had the epoundfect opound backing up the discharge opound water poundroa the Anvik River drainage Water taaperatura ranged poundroa a low opound 9 C on 26 3une to a high opound ~8 C on 5 3uly while air teaperatura ranged poundroa a low daily ainiaua opound 2 c on 14 3uly to a high daily aaxiaua opound 29 C on 4 July
Sonar anubulleration waa scheduled to continue until 28 July ipound neceaaary but eaergency budget reductiona resulted in teraination opound counting on 15 July Signipoundicant numberbull opound poundish were still being counted at that tiae The adJusted escapement count poundor the period 21 June through ~5 3uly waa 1085750 suaaer chua aa~aon ltTable 1gt A peak adJusted daily count opound 117778 poundish occurred on 30 June which repreaented 108~ opound the total aaaaon sonar count Escapeaent tiaing appeared to be relatively early aa it had been in 1979 198~ and 1983 CFigure 5) Mean date opound run paasege waa 3 July with a standard deviation opound 505 daya The caleulated aean and standard deviation are apoundpoundected by premature termination opound the pro)ect
The cuaulative bullbullcapeaent count for the period 21 June through 15 July opound 1085750 auaaer ehua salaon can be expanded to a total season eacapeaent estimate baaed on historical eacapeent tiaing petterna An average opound 873~ opound the total aeaaon sonar count occurred apoundter 15 July poundor previous years lt1979 1981 and 1963gt with an early tiaing pattern aoat aiailar to that opound 1986 Applying this axpanaion poundactor results in a total seaaon eacapeent eatiaate opound ~189602 auaaer chua aalaon poundor 1986
Historical eacapeaent tiaing patterns were uaed on an in-aeason baaia to proJeet the poundinal eacapeaent eatiaate poundor poundiahery aanagebullent purpoaes Sonar counts poundor the period 21-29 June input into the average tiaing curve poundor an early escapement timing pattern (baaed on 1979 1981 and 1983gt resulted in e proJect~on os 1291000 auaae~ chua aalaon This waa w~thin 9~ opound the actue~ poundinal eacepeaent eatiaata opound 1189602 poundiah
Buk~ia (19$2) expanded the aeason eacapeaent eatimatea poundo~ ~972
through 1978 aak1ng it poaaible to aore directly compare viaual count eatiaatea pound~obull thoae yaara with the aore recent aonar count eatiaatee ltFigure 6) The 1986 eacapeaent eatiaate opound 1189602 auaaar chua aa~aon waa second only to the ~981 eacapeaent opound nearly 13 ail~ion poundiah waa 24 tiaaa greater than the eacapeaant obJective opound 487000 poundiah ltADFG 1985gt and was 20 tiaea greater than the long tera lt1972-1985gt average opound 587714 poundish
A total opound 2423 houra opound aonar calibration waa conducted over a 25 day period at the weat bank aite and sonar accuracy ltsonar
8
I I
I I
1 986 MINMAX AIR TEMPERATURE 30 u 28
2-4
22
20
18 1a
10
bull bull 2
0 111-lt1 2-tun Oa-Jwl
a UINIMUM
1 986 WATER TEMPERATURE
~~----------------------------------------- 1 13 11 10
bull a 7
bull
n 1~IUI
bull I I bull
21a-Jun
1986 RELATIVE WATER DEPTH
0~~----------------------------------------
-10
-20
I =~ -bulloj -10-
-80+-~middot~bull-rbull~~~~middot~middot-middot~middot~middot~~middot~middot~~middot~middotmiddotbull-rbull~middot~~~~~ 18-Jun
Figure 4 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the Anvik River sonar site 1986
9
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
Hogatza R
334-40
=middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddot middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot~ middotmiddotmiddot-middot-middot middot-middotmiddot~
Fishing District Boundaries
Major St1IIIrer Chum Salmgtn Spawning Areas
Figure middot1 Map of the Yukon River showing fishing districts and major summer chum salmon spawning areas
fiahery dUr~ng the chinook aa1mon aeaaon coaaercial poundiahery ia directed priaarily Subaiatence poundiaheriea in all poundour dmiddotiatrtcta aelaon primiddotaarily poundor sled dog poundood
The District 4 at chua aalaon take auaaer chua
Suaaer chuM aalaon eacapeaenta to the aaJor spawning areaa in the Yukon River drainage have been estimated by aerial survey poundrom fixed wing aircrapoundt on a conaiatant beaia since the early 1970~a Aerial surveys are aub)ect to error and variability due to weather and atraaa conditionbull~ tiaing opound the aurvey_relative to apewning stage and aubJectivity and experience on the part opound the observer The counta obteined are on1y indicea opound abundance ainca not all aalaon pre nt on the day opound the survey are uaually sean and earlier and later apawnera are not present However tbaaa indices if obtained under standardized conditions can be uaed to aonitor the relative abundance of spawning aacapeaenta Aerial aurveya ara the aoat poundeaaible aethod opound aeeeasing salmon bullbullcapeaenta in terme of coat and atepoundpound 1~a~tationa ~n a watershed as i-enae and reaote bullbull that opound the Yukon River
The Alaska Departaent of Fiah _and Gaae ltADFampGgt baa continued the aerial survey prograa while intensively studying a few iaportant and representative tributary streea aa1aon apawning populet~ona The Anvik and Andreepoundaky Rivera have been choaen for auaaer chum aalaon reaearch studies Thia report preaenta reaulta opound these atudiea poundor the 1986 poundiald aeaaon and prov~dea recoaaendations for 1987 proJect operations
ANVIK RIVER SALMON STUDY
The Anvik River ltFigura 2) originates at an elevation opound ~300
feat and pound1owa in a southerly direction epproxiaately 120 ailea to ~ta aouth at aile 318 opound the Yukon River It ia a narrow runopoundpound atreaa with a auoatrate opound gravel and cobb1e except in tha upper reach where bedrock 1a exposed The Ve1low River ~ a aaJor tributary opound the Anvik and ia stained with tannic acid runepoundpound Downatreaa opound the Yellow River conpoundluence the Anvik R~ver changea poundroa a aoderate gradient ayatea to a low gradient ayatea aaandering through a auch broader poundlood plain Water clarity ~a
reduced downatreabull of the Yellow River Huaaroue oxoowa_ old channel cutopoundpounda and alougha are poundound throughout the lower river
Salaon eacapeaent waa enuaerated poundrca counting towera located above the Ye~low River poundroa 1972 to 1978 A aite S-112 ailea above the Vbullllow River waa uaed frobull 1972 to 197~ and a aite at Robinhood Creek 2-112 ailea above the Yellow River_ was used froa 1976 to 1978 Aerial aurveya werbull poundlown each year ltexcept 19741 in poundixed-wing aircraft to eatiaate aalbullon abundance below the tower aite High and turb~d water opoundten epoundpoundecta the accuracy opound viaual aalaon enuaeration froa counting towers and a~rcrapoundt
The Electrodynaaica Diviaion opound the Bendix Corporation developed
3
bull bull
4
s w gt - c ~ gt pound lt Ql ~
+J
0
0 lttl
N
Ql $ I en
a aide-scanning sonar counter during the 1970s capab~e opound detacting and counting aa~aon aigrating a~ong the banks opound tributary streaaa The sonar counter ia designed to transMit a sonic beaa a~ong bull 60 poundoot aluminua tube~ or substrata Echoes poundrobull aa~aon paaaing through the beebull are repoundlected back to the transducer The systea electronicamp interpret the strength and nuaber opound the echoea and tally aalaon counta Criteria poundor strength and poundrequency opound the echoes ere designed to optiD~ze
counting opound aelaon and ainiaize any non-salmon counts ltie debris or other poundiah epecieal SalMon eacapaaent was enuaerated by aonar beginning in 1979~ rep~acing and proving superior to the tower counting aathod One sonar counter has been installed on each bank os the Anvik River near Theodore Creek each year Aerial survey data indicates that virtually all suaaer chua salmon spawnerbull are poundound upatreaa opound this site
Methods and Materials
Two 1978 Model aonar counters were operated without art1poundicia~
aluainua substrate tubea throughout the season poundor the second consecutive year Each sonar transducer was aounted on a ~ectangular aluainubull poundraaa The eaat and weat bank sites used in previous yaera were probed to locate unipoundora river bottoa gradients that would provide optiaua aurpoundaees poundor insonipoundication Two ateei pipes were aet into the river bottoa on each aide opound the river onto which the transducer poundraaea were guided by aide aounted ateei sleeves Counting rangea were set such that the entire width opound the river was inaonipoundied Weirs prevented salmon peaaage inahore opound the transducer on each banmiddotk Transducers were eoved inahora or opoundpoundahore as required by poundluctuating water lavela
Sonar counts were totaled electronically in twelve sectors poundor each bank and printed hourly Sector counts missing as a result opound debris or printer aa~poundunction were eatiaated by averag1ng the counta in tbe aaaa sector poundor the hour bepoundore and apoundter the sector count in queation Counts ware totaled daily poundor each bank uaing an e~ectronic calculator and the eeat and weat bank totala auaaed to obtain a daily eacapement estimate Since summer chum aalaon greatly outnuaber chinookbull and pinka and the counters do not diatingu~ah between apec~es opound aalaon~ all aonar counts were attributed to auaaer chua salaon A separate eacapament estibullste poundor chinook aalbullon waa obtained by aerial survey
Each sonar counter waa calibrated poundour tiaes daily by obaerv~ng
poundiah paaaage with an oscilloscope poundor a 15 ainute period Salmon paaaing through tha aonar beaa produce a distinct oscilloecope trace Sonar and oacilloscope counts poundor each calibration period were related in the oraula Q=SSSC~ where SS = aide acan sonar counta an~ SC bull oacilloacope counta The existing poundiah velocity bullbulltting waa aultiplied by Q to obtain tbe correct new setting ipound the dispounderence between the counts waa greater than 15~ The ayatea waa then recalibrated at the new setting A record waa kept opound all adJuatmenta to the sonar equipment Fish peaaage was
5
viauelly enuaereted poundrobull ~0 poundt counting towers during sonar calibration ~ioda as a poundurther check on aonar accuracy whenever water and light cond~tiona allowed Polaroid sunglaaaea were worn to reduce water aurpoundace glare
Daily sonar counts were adJusted apoundter the poundield aeason baaed on the calibration date The daily adJUStment poundactor ia the sua opound calibrat~on oscilloscope counts poundor that day divided by the aua opound cel~bration aoner counts poundor tnat day Deily aonar counts were aultiplied by the daily adJuatent poundactor to obtain corrected daily sonar counta Mean and standard deviation opound date opound paaaage were calculated poundollowing the aethod presented by Mundy (1982)
Water depth propoundile at the sonar aite waa aeoaured at 3 a intervals across the width opound the river by probing with a pole aarked in 1 em incrementa Clibullatological data were collected at noon each day at the caapsite A pole aarked 1n 1 ca increaents waa aat in the river Changes in water depth are presented as negative or positive poundroa the initial reading opound 0 em Water teaperature waa aaaaurad in degreea centigrade near shore at a depth opound about 05 bullmiddot Daily aex~aua and miniaua air temperatures were recorded in degrees centigrade SubJective notes were kept by the crew describing wind speed end direction cloud cover and precipitation
A beach seine lt100 poundt long GG aeahaa deep 2-112 in aeah) was set near the aonar aita to capture chua and chinook aalaon poundor ega bullbullx~ and aize aeaaurebullenta Chua and chinook salmon were placed in a holding pen identipoundiad by sex measured poundroa mid-eye to poundark opound tail in bullbullbull and ona scale wea taken poundor age deteraination Scales were reaoved poundroa en area posterior to the baaa opound the dorsal poundin and above the lateral line on the lepoundt aide opound the poundiah The adipoae poundin was clipped on each poundiah bepoundore release to prevent reaaapling Chinook salmon carcaaaea were aaapled in Auguat to auppleaant the beach seine saaple Three acalea were taken poundroa each carcass Scale aamplaa were later pressed on acetate carda and the resulting impressions viewed on a aicropoundiche reader poundor age deteraination
Reaulta and Diacuaaion
Two aonar counterbull ware operated poundroa 21 June through 15 July at approx~aately the aaae aitea used in previous yeara ltFigure 3gt The east bank transducer waa located along a cutbank 37 bull opoundpoundahore and at a depth opound 87 em The west bank transducer was located along a gradually aloping gravel bar approxibullately 60 bull downatreaa poundroa the aaat bank aite The transducer was 152 m opoundpoundahora and at a depth opound 61 ca The entire width opound the river between the tranaducera was insonipound1ad River bottobull gradient was aaooth with no obatructiona to the sonar beaa and bullaximua depth waa 149 ca ea aeaaured on 23 3une ltFigure 3)
River water level waa opound noraal height poundor the time opound year when
6
Eaat Bank
Wea-t Bank
Figure 3 Map of the Anvik River sonar site and river depth profiles as measured on 23 June 1986 for the west bank and on 25 June 1986 for the east bank Shaded areas show approximate range of insonification on these dates weirs are indicated with cross hatching Unequal scale of the axes distorts the presentation
7
the crew arr1ved to begin proJect operations Below average anowpack in the drainage and below average rainpoundall in the spring and ear~y auaaer resulted in steadily declining water levels throughout aonar proJect operation-CFigure 4) Moderate increases in water level on 22 and 27 June were due to pulses opound high water in the Yukon River poundroa heavy rainpoundall in the upper portion opound the Yukon River drainage These pulabullbull opound high water had the epoundfect opound backing up the discharge opound water poundroa the Anvik River drainage Water taaperatura ranged poundroa a low opound 9 C on 26 3une to a high opound ~8 C on 5 3uly while air teaperatura ranged poundroa a low daily ainiaua opound 2 c on 14 3uly to a high daily aaxiaua opound 29 C on 4 July
Sonar anubulleration waa scheduled to continue until 28 July ipound neceaaary but eaergency budget reductiona resulted in teraination opound counting on 15 July Signipoundicant numberbull opound poundish were still being counted at that tiae The adJusted escapement count poundor the period 21 June through ~5 3uly waa 1085750 suaaer chua aa~aon ltTable 1gt A peak adJusted daily count opound 117778 poundish occurred on 30 June which repreaented 108~ opound the total aaaaon sonar count Escapeaent tiaing appeared to be relatively early aa it had been in 1979 198~ and 1983 CFigure 5) Mean date opound run paasege waa 3 July with a standard deviation opound 505 daya The caleulated aean and standard deviation are apoundpoundected by premature termination opound the pro)ect
The cuaulative bullbullcapeaent count for the period 21 June through 15 July opound 1085750 auaaer ehua salaon can be expanded to a total season eacapeaent estimate baaed on historical eacapeent tiaing petterna An average opound 873~ opound the total aeaaon sonar count occurred apoundter 15 July poundor previous years lt1979 1981 and 1963gt with an early tiaing pattern aoat aiailar to that opound 1986 Applying this axpanaion poundactor results in a total seaaon eacapeent eatiaate opound ~189602 auaaer chua aalaon poundor 1986
Historical eacapeaent tiaing patterns were uaed on an in-aeason baaia to proJeet the poundinal eacapeaent eatiaate poundor poundiahery aanagebullent purpoaes Sonar counts poundor the period 21-29 June input into the average tiaing curve poundor an early escapement timing pattern (baaed on 1979 1981 and 1983gt resulted in e proJect~on os 1291000 auaae~ chua aalaon This waa w~thin 9~ opound the actue~ poundinal eacepeaent eatiaata opound 1189602 poundiah
Buk~ia (19$2) expanded the aeason eacapeaent eatimatea poundo~ ~972
through 1978 aak1ng it poaaible to aore directly compare viaual count eatiaatea pound~obull thoae yaara with the aore recent aonar count eatiaatee ltFigure 6) The 1986 eacapeaent eatiaate opound 1189602 auaaar chua aa~aon waa second only to the ~981 eacapeaent opound nearly 13 ail~ion poundiah waa 24 tiaaa greater than the eacapeaant obJective opound 487000 poundiah ltADFG 1985gt and was 20 tiaea greater than the long tera lt1972-1985gt average opound 587714 poundish
A total opound 2423 houra opound aonar calibration waa conducted over a 25 day period at the weat bank aite and sonar accuracy ltsonar
8
I I
I I
1 986 MINMAX AIR TEMPERATURE 30 u 28
2-4
22
20
18 1a
10
bull bull 2
0 111-lt1 2-tun Oa-Jwl
a UINIMUM
1 986 WATER TEMPERATURE
~~----------------------------------------- 1 13 11 10
bull a 7
bull
n 1~IUI
bull I I bull
21a-Jun
1986 RELATIVE WATER DEPTH
0~~----------------------------------------
-10
-20
I =~ -bulloj -10-
-80+-~middot~bull-rbull~~~~middot~middot-middot~middot~middot~~middot~middot~~middot~middotmiddotbull-rbull~middot~~~~~ 18-Jun
Figure 4 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the Anvik River sonar site 1986
9
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
fiahery dUr~ng the chinook aa1mon aeaaon coaaercial poundiahery ia directed priaarily Subaiatence poundiaheriea in all poundour dmiddotiatrtcta aelaon primiddotaarily poundor sled dog poundood
The District 4 at chua aalaon take auaaer chua
Suaaer chuM aalaon eacapeaenta to the aaJor spawning areaa in the Yukon River drainage have been estimated by aerial survey poundrom fixed wing aircrapoundt on a conaiatant beaia since the early 1970~a Aerial surveys are aub)ect to error and variability due to weather and atraaa conditionbull~ tiaing opound the aurvey_relative to apewning stage and aubJectivity and experience on the part opound the observer The counta obteined are on1y indicea opound abundance ainca not all aalaon pre nt on the day opound the survey are uaually sean and earlier and later apawnera are not present However tbaaa indices if obtained under standardized conditions can be uaed to aonitor the relative abundance of spawning aacapeaenta Aerial aurveya ara the aoat poundeaaible aethod opound aeeeasing salmon bullbullcapeaenta in terme of coat and atepoundpound 1~a~tationa ~n a watershed as i-enae and reaote bullbull that opound the Yukon River
The Alaska Departaent of Fiah _and Gaae ltADFampGgt baa continued the aerial survey prograa while intensively studying a few iaportant and representative tributary streea aa1aon apawning populet~ona The Anvik and Andreepoundaky Rivera have been choaen for auaaer chum aalaon reaearch studies Thia report preaenta reaulta opound these atudiea poundor the 1986 poundiald aeaaon and prov~dea recoaaendations for 1987 proJect operations
ANVIK RIVER SALMON STUDY
The Anvik River ltFigura 2) originates at an elevation opound ~300
feat and pound1owa in a southerly direction epproxiaately 120 ailea to ~ta aouth at aile 318 opound the Yukon River It ia a narrow runopoundpound atreaa with a auoatrate opound gravel and cobb1e except in tha upper reach where bedrock 1a exposed The Ve1low River ~ a aaJor tributary opound the Anvik and ia stained with tannic acid runepoundpound Downatreaa opound the Yellow River conpoundluence the Anvik R~ver changea poundroa a aoderate gradient ayatea to a low gradient ayatea aaandering through a auch broader poundlood plain Water clarity ~a
reduced downatreabull of the Yellow River Huaaroue oxoowa_ old channel cutopoundpounda and alougha are poundound throughout the lower river
Salaon eacapeaent waa enuaerated poundrca counting towera located above the Ye~low River poundroa 1972 to 1978 A aite S-112 ailea above the Vbullllow River waa uaed frobull 1972 to 197~ and a aite at Robinhood Creek 2-112 ailea above the Yellow River_ was used froa 1976 to 1978 Aerial aurveya werbull poundlown each year ltexcept 19741 in poundixed-wing aircraft to eatiaate aalbullon abundance below the tower aite High and turb~d water opoundten epoundpoundecta the accuracy opound viaual aalaon enuaeration froa counting towers and a~rcrapoundt
The Electrodynaaica Diviaion opound the Bendix Corporation developed
3
bull bull
4
s w gt - c ~ gt pound lt Ql ~
+J
0
0 lttl
N
Ql $ I en
a aide-scanning sonar counter during the 1970s capab~e opound detacting and counting aa~aon aigrating a~ong the banks opound tributary streaaa The sonar counter ia designed to transMit a sonic beaa a~ong bull 60 poundoot aluminua tube~ or substrata Echoes poundrobull aa~aon paaaing through the beebull are repoundlected back to the transducer The systea electronicamp interpret the strength and nuaber opound the echoea and tally aalaon counta Criteria poundor strength and poundrequency opound the echoes ere designed to optiD~ze
counting opound aelaon and ainiaize any non-salmon counts ltie debris or other poundiah epecieal SalMon eacapaaent was enuaerated by aonar beginning in 1979~ rep~acing and proving superior to the tower counting aathod One sonar counter has been installed on each bank os the Anvik River near Theodore Creek each year Aerial survey data indicates that virtually all suaaer chua salmon spawnerbull are poundound upatreaa opound this site
Methods and Materials
Two 1978 Model aonar counters were operated without art1poundicia~
aluainua substrate tubea throughout the season poundor the second consecutive year Each sonar transducer was aounted on a ~ectangular aluainubull poundraaa The eaat and weat bank sites used in previous yaera were probed to locate unipoundora river bottoa gradients that would provide optiaua aurpoundaees poundor insonipoundication Two ateei pipes were aet into the river bottoa on each aide opound the river onto which the transducer poundraaea were guided by aide aounted ateei sleeves Counting rangea were set such that the entire width opound the river was inaonipoundied Weirs prevented salmon peaaage inahore opound the transducer on each banmiddotk Transducers were eoved inahora or opoundpoundahore as required by poundluctuating water lavela
Sonar counts were totaled electronically in twelve sectors poundor each bank and printed hourly Sector counts missing as a result opound debris or printer aa~poundunction were eatiaated by averag1ng the counta in tbe aaaa sector poundor the hour bepoundore and apoundter the sector count in queation Counts ware totaled daily poundor each bank uaing an e~ectronic calculator and the eeat and weat bank totala auaaed to obtain a daily eacapement estimate Since summer chum aalaon greatly outnuaber chinookbull and pinka and the counters do not diatingu~ah between apec~es opound aalaon~ all aonar counts were attributed to auaaer chua salaon A separate eacapament estibullste poundor chinook aalbullon waa obtained by aerial survey
Each sonar counter waa calibrated poundour tiaes daily by obaerv~ng
poundiah paaaage with an oscilloscope poundor a 15 ainute period Salmon paaaing through tha aonar beaa produce a distinct oscilloecope trace Sonar and oacilloscope counts poundor each calibration period were related in the oraula Q=SSSC~ where SS = aide acan sonar counta an~ SC bull oacilloacope counta The existing poundiah velocity bullbulltting waa aultiplied by Q to obtain tbe correct new setting ipound the dispounderence between the counts waa greater than 15~ The ayatea waa then recalibrated at the new setting A record waa kept opound all adJuatmenta to the sonar equipment Fish peaaage was
5
viauelly enuaereted poundrobull ~0 poundt counting towers during sonar calibration ~ioda as a poundurther check on aonar accuracy whenever water and light cond~tiona allowed Polaroid sunglaaaea were worn to reduce water aurpoundace glare
Daily sonar counts were adJusted apoundter the poundield aeason baaed on the calibration date The daily adJUStment poundactor ia the sua opound calibrat~on oscilloscope counts poundor that day divided by the aua opound cel~bration aoner counts poundor tnat day Deily aonar counts were aultiplied by the daily adJuatent poundactor to obtain corrected daily sonar counta Mean and standard deviation opound date opound paaaage were calculated poundollowing the aethod presented by Mundy (1982)
Water depth propoundile at the sonar aite waa aeoaured at 3 a intervals across the width opound the river by probing with a pole aarked in 1 em incrementa Clibullatological data were collected at noon each day at the caapsite A pole aarked 1n 1 ca increaents waa aat in the river Changes in water depth are presented as negative or positive poundroa the initial reading opound 0 em Water teaperature waa aaaaurad in degreea centigrade near shore at a depth opound about 05 bullmiddot Daily aex~aua and miniaua air temperatures were recorded in degrees centigrade SubJective notes were kept by the crew describing wind speed end direction cloud cover and precipitation
A beach seine lt100 poundt long GG aeahaa deep 2-112 in aeah) was set near the aonar aita to capture chua and chinook aalaon poundor ega bullbullx~ and aize aeaaurebullenta Chua and chinook salmon were placed in a holding pen identipoundiad by sex measured poundroa mid-eye to poundark opound tail in bullbullbull and ona scale wea taken poundor age deteraination Scales were reaoved poundroa en area posterior to the baaa opound the dorsal poundin and above the lateral line on the lepoundt aide opound the poundiah The adipoae poundin was clipped on each poundiah bepoundore release to prevent reaaapling Chinook salmon carcaaaea were aaapled in Auguat to auppleaant the beach seine saaple Three acalea were taken poundroa each carcass Scale aamplaa were later pressed on acetate carda and the resulting impressions viewed on a aicropoundiche reader poundor age deteraination
Reaulta and Diacuaaion
Two aonar counterbull ware operated poundroa 21 June through 15 July at approx~aately the aaae aitea used in previous yeara ltFigure 3gt The east bank transducer waa located along a cutbank 37 bull opoundpoundahore and at a depth opound 87 em The west bank transducer was located along a gradually aloping gravel bar approxibullately 60 bull downatreaa poundroa the aaat bank aite The transducer was 152 m opoundpoundahora and at a depth opound 61 ca The entire width opound the river between the tranaducera was insonipound1ad River bottobull gradient was aaooth with no obatructiona to the sonar beaa and bullaximua depth waa 149 ca ea aeaaured on 23 3une ltFigure 3)
River water level waa opound noraal height poundor the time opound year when
6
Eaat Bank
Wea-t Bank
Figure 3 Map of the Anvik River sonar site and river depth profiles as measured on 23 June 1986 for the west bank and on 25 June 1986 for the east bank Shaded areas show approximate range of insonification on these dates weirs are indicated with cross hatching Unequal scale of the axes distorts the presentation
7
the crew arr1ved to begin proJect operations Below average anowpack in the drainage and below average rainpoundall in the spring and ear~y auaaer resulted in steadily declining water levels throughout aonar proJect operation-CFigure 4) Moderate increases in water level on 22 and 27 June were due to pulses opound high water in the Yukon River poundroa heavy rainpoundall in the upper portion opound the Yukon River drainage These pulabullbull opound high water had the epoundfect opound backing up the discharge opound water poundroa the Anvik River drainage Water taaperatura ranged poundroa a low opound 9 C on 26 3une to a high opound ~8 C on 5 3uly while air teaperatura ranged poundroa a low daily ainiaua opound 2 c on 14 3uly to a high daily aaxiaua opound 29 C on 4 July
Sonar anubulleration waa scheduled to continue until 28 July ipound neceaaary but eaergency budget reductiona resulted in teraination opound counting on 15 July Signipoundicant numberbull opound poundish were still being counted at that tiae The adJusted escapement count poundor the period 21 June through ~5 3uly waa 1085750 suaaer chua aa~aon ltTable 1gt A peak adJusted daily count opound 117778 poundish occurred on 30 June which repreaented 108~ opound the total aaaaon sonar count Escapeaent tiaing appeared to be relatively early aa it had been in 1979 198~ and 1983 CFigure 5) Mean date opound run paasege waa 3 July with a standard deviation opound 505 daya The caleulated aean and standard deviation are apoundpoundected by premature termination opound the pro)ect
The cuaulative bullbullcapeaent count for the period 21 June through 15 July opound 1085750 auaaer ehua salaon can be expanded to a total season eacapeaent estimate baaed on historical eacapeent tiaing petterna An average opound 873~ opound the total aeaaon sonar count occurred apoundter 15 July poundor previous years lt1979 1981 and 1963gt with an early tiaing pattern aoat aiailar to that opound 1986 Applying this axpanaion poundactor results in a total seaaon eacapeent eatiaate opound ~189602 auaaer chua aalaon poundor 1986
Historical eacapeaent tiaing patterns were uaed on an in-aeason baaia to proJeet the poundinal eacapeaent eatiaate poundor poundiahery aanagebullent purpoaes Sonar counts poundor the period 21-29 June input into the average tiaing curve poundor an early escapement timing pattern (baaed on 1979 1981 and 1983gt resulted in e proJect~on os 1291000 auaae~ chua aalaon This waa w~thin 9~ opound the actue~ poundinal eacepeaent eatiaata opound 1189602 poundiah
Buk~ia (19$2) expanded the aeason eacapeaent eatimatea poundo~ ~972
through 1978 aak1ng it poaaible to aore directly compare viaual count eatiaatea pound~obull thoae yaara with the aore recent aonar count eatiaatee ltFigure 6) The 1986 eacapeaent eatiaate opound 1189602 auaaar chua aa~aon waa second only to the ~981 eacapeaent opound nearly 13 ail~ion poundiah waa 24 tiaaa greater than the eacapeaant obJective opound 487000 poundiah ltADFG 1985gt and was 20 tiaea greater than the long tera lt1972-1985gt average opound 587714 poundish
A total opound 2423 houra opound aonar calibration waa conducted over a 25 day period at the weat bank aite and sonar accuracy ltsonar
8
I I
I I
1 986 MINMAX AIR TEMPERATURE 30 u 28
2-4
22
20
18 1a
10
bull bull 2
0 111-lt1 2-tun Oa-Jwl
a UINIMUM
1 986 WATER TEMPERATURE
~~----------------------------------------- 1 13 11 10
bull a 7
bull
n 1~IUI
bull I I bull
21a-Jun
1986 RELATIVE WATER DEPTH
0~~----------------------------------------
-10
-20
I =~ -bulloj -10-
-80+-~middot~bull-rbull~~~~middot~middot-middot~middot~middot~~middot~middot~~middot~middotmiddotbull-rbull~middot~~~~~ 18-Jun
Figure 4 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the Anvik River sonar site 1986
9
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
bull bull
4
s w gt - c ~ gt pound lt Ql ~
+J
0
0 lttl
N
Ql $ I en
a aide-scanning sonar counter during the 1970s capab~e opound detacting and counting aa~aon aigrating a~ong the banks opound tributary streaaa The sonar counter ia designed to transMit a sonic beaa a~ong bull 60 poundoot aluminua tube~ or substrata Echoes poundrobull aa~aon paaaing through the beebull are repoundlected back to the transducer The systea electronicamp interpret the strength and nuaber opound the echoea and tally aalaon counta Criteria poundor strength and poundrequency opound the echoes ere designed to optiD~ze
counting opound aelaon and ainiaize any non-salmon counts ltie debris or other poundiah epecieal SalMon eacapaaent was enuaerated by aonar beginning in 1979~ rep~acing and proving superior to the tower counting aathod One sonar counter has been installed on each bank os the Anvik River near Theodore Creek each year Aerial survey data indicates that virtually all suaaer chua salmon spawnerbull are poundound upatreaa opound this site
Methods and Materials
Two 1978 Model aonar counters were operated without art1poundicia~
aluainua substrate tubea throughout the season poundor the second consecutive year Each sonar transducer was aounted on a ~ectangular aluainubull poundraaa The eaat and weat bank sites used in previous yaera were probed to locate unipoundora river bottoa gradients that would provide optiaua aurpoundaees poundor insonipoundication Two ateei pipes were aet into the river bottoa on each aide opound the river onto which the transducer poundraaea were guided by aide aounted ateei sleeves Counting rangea were set such that the entire width opound the river was inaonipoundied Weirs prevented salmon peaaage inahore opound the transducer on each banmiddotk Transducers were eoved inahora or opoundpoundahore as required by poundluctuating water lavela
Sonar counts were totaled electronically in twelve sectors poundor each bank and printed hourly Sector counts missing as a result opound debris or printer aa~poundunction were eatiaated by averag1ng the counta in tbe aaaa sector poundor the hour bepoundore and apoundter the sector count in queation Counts ware totaled daily poundor each bank uaing an e~ectronic calculator and the eeat and weat bank totala auaaed to obtain a daily eacapement estimate Since summer chum aalaon greatly outnuaber chinookbull and pinka and the counters do not diatingu~ah between apec~es opound aalaon~ all aonar counts were attributed to auaaer chua salaon A separate eacapament estibullste poundor chinook aalbullon waa obtained by aerial survey
Each sonar counter waa calibrated poundour tiaes daily by obaerv~ng
poundiah paaaage with an oscilloscope poundor a 15 ainute period Salmon paaaing through tha aonar beaa produce a distinct oscilloecope trace Sonar and oacilloscope counts poundor each calibration period were related in the oraula Q=SSSC~ where SS = aide acan sonar counta an~ SC bull oacilloacope counta The existing poundiah velocity bullbulltting waa aultiplied by Q to obtain tbe correct new setting ipound the dispounderence between the counts waa greater than 15~ The ayatea waa then recalibrated at the new setting A record waa kept opound all adJuatmenta to the sonar equipment Fish peaaage was
5
viauelly enuaereted poundrobull ~0 poundt counting towers during sonar calibration ~ioda as a poundurther check on aonar accuracy whenever water and light cond~tiona allowed Polaroid sunglaaaea were worn to reduce water aurpoundace glare
Daily sonar counts were adJusted apoundter the poundield aeason baaed on the calibration date The daily adJUStment poundactor ia the sua opound calibrat~on oscilloscope counts poundor that day divided by the aua opound cel~bration aoner counts poundor tnat day Deily aonar counts were aultiplied by the daily adJuatent poundactor to obtain corrected daily sonar counta Mean and standard deviation opound date opound paaaage were calculated poundollowing the aethod presented by Mundy (1982)
Water depth propoundile at the sonar aite waa aeoaured at 3 a intervals across the width opound the river by probing with a pole aarked in 1 em incrementa Clibullatological data were collected at noon each day at the caapsite A pole aarked 1n 1 ca increaents waa aat in the river Changes in water depth are presented as negative or positive poundroa the initial reading opound 0 em Water teaperature waa aaaaurad in degreea centigrade near shore at a depth opound about 05 bullmiddot Daily aex~aua and miniaua air temperatures were recorded in degrees centigrade SubJective notes were kept by the crew describing wind speed end direction cloud cover and precipitation
A beach seine lt100 poundt long GG aeahaa deep 2-112 in aeah) was set near the aonar aita to capture chua and chinook aalaon poundor ega bullbullx~ and aize aeaaurebullenta Chua and chinook salmon were placed in a holding pen identipoundiad by sex measured poundroa mid-eye to poundark opound tail in bullbullbull and ona scale wea taken poundor age deteraination Scales were reaoved poundroa en area posterior to the baaa opound the dorsal poundin and above the lateral line on the lepoundt aide opound the poundiah The adipoae poundin was clipped on each poundiah bepoundore release to prevent reaaapling Chinook salmon carcaaaea were aaapled in Auguat to auppleaant the beach seine saaple Three acalea were taken poundroa each carcass Scale aamplaa were later pressed on acetate carda and the resulting impressions viewed on a aicropoundiche reader poundor age deteraination
Reaulta and Diacuaaion
Two aonar counterbull ware operated poundroa 21 June through 15 July at approx~aately the aaae aitea used in previous yeara ltFigure 3gt The east bank transducer waa located along a cutbank 37 bull opoundpoundahore and at a depth opound 87 em The west bank transducer was located along a gradually aloping gravel bar approxibullately 60 bull downatreaa poundroa the aaat bank aite The transducer was 152 m opoundpoundahora and at a depth opound 61 ca The entire width opound the river between the tranaducera was insonipound1ad River bottobull gradient was aaooth with no obatructiona to the sonar beaa and bullaximua depth waa 149 ca ea aeaaured on 23 3une ltFigure 3)
River water level waa opound noraal height poundor the time opound year when
6
Eaat Bank
Wea-t Bank
Figure 3 Map of the Anvik River sonar site and river depth profiles as measured on 23 June 1986 for the west bank and on 25 June 1986 for the east bank Shaded areas show approximate range of insonification on these dates weirs are indicated with cross hatching Unequal scale of the axes distorts the presentation
7
the crew arr1ved to begin proJect operations Below average anowpack in the drainage and below average rainpoundall in the spring and ear~y auaaer resulted in steadily declining water levels throughout aonar proJect operation-CFigure 4) Moderate increases in water level on 22 and 27 June were due to pulses opound high water in the Yukon River poundroa heavy rainpoundall in the upper portion opound the Yukon River drainage These pulabullbull opound high water had the epoundfect opound backing up the discharge opound water poundroa the Anvik River drainage Water taaperatura ranged poundroa a low opound 9 C on 26 3une to a high opound ~8 C on 5 3uly while air teaperatura ranged poundroa a low daily ainiaua opound 2 c on 14 3uly to a high daily aaxiaua opound 29 C on 4 July
Sonar anubulleration waa scheduled to continue until 28 July ipound neceaaary but eaergency budget reductiona resulted in teraination opound counting on 15 July Signipoundicant numberbull opound poundish were still being counted at that tiae The adJusted escapement count poundor the period 21 June through ~5 3uly waa 1085750 suaaer chua aa~aon ltTable 1gt A peak adJusted daily count opound 117778 poundish occurred on 30 June which repreaented 108~ opound the total aaaaon sonar count Escapeaent tiaing appeared to be relatively early aa it had been in 1979 198~ and 1983 CFigure 5) Mean date opound run paasege waa 3 July with a standard deviation opound 505 daya The caleulated aean and standard deviation are apoundpoundected by premature termination opound the pro)ect
The cuaulative bullbullcapeaent count for the period 21 June through 15 July opound 1085750 auaaer ehua salaon can be expanded to a total season eacapeaent estimate baaed on historical eacapeent tiaing petterna An average opound 873~ opound the total aeaaon sonar count occurred apoundter 15 July poundor previous years lt1979 1981 and 1963gt with an early tiaing pattern aoat aiailar to that opound 1986 Applying this axpanaion poundactor results in a total seaaon eacapeent eatiaate opound ~189602 auaaer chua aalaon poundor 1986
Historical eacapeaent tiaing patterns were uaed on an in-aeason baaia to proJeet the poundinal eacapeaent eatiaate poundor poundiahery aanagebullent purpoaes Sonar counts poundor the period 21-29 June input into the average tiaing curve poundor an early escapement timing pattern (baaed on 1979 1981 and 1983gt resulted in e proJect~on os 1291000 auaae~ chua aalaon This waa w~thin 9~ opound the actue~ poundinal eacepeaent eatiaata opound 1189602 poundiah
Buk~ia (19$2) expanded the aeason eacapeaent eatimatea poundo~ ~972
through 1978 aak1ng it poaaible to aore directly compare viaual count eatiaatea pound~obull thoae yaara with the aore recent aonar count eatiaatee ltFigure 6) The 1986 eacapeaent eatiaate opound 1189602 auaaar chua aa~aon waa second only to the ~981 eacapeaent opound nearly 13 ail~ion poundiah waa 24 tiaaa greater than the eacapeaant obJective opound 487000 poundiah ltADFG 1985gt and was 20 tiaea greater than the long tera lt1972-1985gt average opound 587714 poundish
A total opound 2423 houra opound aonar calibration waa conducted over a 25 day period at the weat bank aite and sonar accuracy ltsonar
8
I I
I I
1 986 MINMAX AIR TEMPERATURE 30 u 28
2-4
22
20
18 1a
10
bull bull 2
0 111-lt1 2-tun Oa-Jwl
a UINIMUM
1 986 WATER TEMPERATURE
~~----------------------------------------- 1 13 11 10
bull a 7
bull
n 1~IUI
bull I I bull
21a-Jun
1986 RELATIVE WATER DEPTH
0~~----------------------------------------
-10
-20
I =~ -bulloj -10-
-80+-~middot~bull-rbull~~~~middot~middot-middot~middot~middot~~middot~middot~~middot~middotmiddotbull-rbull~middot~~~~~ 18-Jun
Figure 4 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the Anvik River sonar site 1986
9
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
a aide-scanning sonar counter during the 1970s capab~e opound detacting and counting aa~aon aigrating a~ong the banks opound tributary streaaa The sonar counter ia designed to transMit a sonic beaa a~ong bull 60 poundoot aluminua tube~ or substrata Echoes poundrobull aa~aon paaaing through the beebull are repoundlected back to the transducer The systea electronicamp interpret the strength and nuaber opound the echoea and tally aalaon counta Criteria poundor strength and poundrequency opound the echoes ere designed to optiD~ze
counting opound aelaon and ainiaize any non-salmon counts ltie debris or other poundiah epecieal SalMon eacapaaent was enuaerated by aonar beginning in 1979~ rep~acing and proving superior to the tower counting aathod One sonar counter has been installed on each bank os the Anvik River near Theodore Creek each year Aerial survey data indicates that virtually all suaaer chua salmon spawnerbull are poundound upatreaa opound this site
Methods and Materials
Two 1978 Model aonar counters were operated without art1poundicia~
aluainua substrate tubea throughout the season poundor the second consecutive year Each sonar transducer was aounted on a ~ectangular aluainubull poundraaa The eaat and weat bank sites used in previous yaera were probed to locate unipoundora river bottoa gradients that would provide optiaua aurpoundaees poundor insonipoundication Two ateei pipes were aet into the river bottoa on each aide opound the river onto which the transducer poundraaea were guided by aide aounted ateei sleeves Counting rangea were set such that the entire width opound the river was inaonipoundied Weirs prevented salmon peaaage inahore opound the transducer on each banmiddotk Transducers were eoved inahora or opoundpoundahore as required by poundluctuating water lavela
Sonar counts were totaled electronically in twelve sectors poundor each bank and printed hourly Sector counts missing as a result opound debris or printer aa~poundunction were eatiaated by averag1ng the counta in tbe aaaa sector poundor the hour bepoundore and apoundter the sector count in queation Counts ware totaled daily poundor each bank uaing an e~ectronic calculator and the eeat and weat bank totala auaaed to obtain a daily eacapement estimate Since summer chum aalaon greatly outnuaber chinookbull and pinka and the counters do not diatingu~ah between apec~es opound aalaon~ all aonar counts were attributed to auaaer chua salaon A separate eacapament estibullste poundor chinook aalbullon waa obtained by aerial survey
Each sonar counter waa calibrated poundour tiaes daily by obaerv~ng
poundiah paaaage with an oscilloscope poundor a 15 ainute period Salmon paaaing through tha aonar beaa produce a distinct oscilloecope trace Sonar and oacilloscope counts poundor each calibration period were related in the oraula Q=SSSC~ where SS = aide acan sonar counta an~ SC bull oacilloacope counta The existing poundiah velocity bullbulltting waa aultiplied by Q to obtain tbe correct new setting ipound the dispounderence between the counts waa greater than 15~ The ayatea waa then recalibrated at the new setting A record waa kept opound all adJuatmenta to the sonar equipment Fish peaaage was
5
viauelly enuaereted poundrobull ~0 poundt counting towers during sonar calibration ~ioda as a poundurther check on aonar accuracy whenever water and light cond~tiona allowed Polaroid sunglaaaea were worn to reduce water aurpoundace glare
Daily sonar counts were adJusted apoundter the poundield aeason baaed on the calibration date The daily adJUStment poundactor ia the sua opound calibrat~on oscilloscope counts poundor that day divided by the aua opound cel~bration aoner counts poundor tnat day Deily aonar counts were aultiplied by the daily adJuatent poundactor to obtain corrected daily sonar counta Mean and standard deviation opound date opound paaaage were calculated poundollowing the aethod presented by Mundy (1982)
Water depth propoundile at the sonar aite waa aeoaured at 3 a intervals across the width opound the river by probing with a pole aarked in 1 em incrementa Clibullatological data were collected at noon each day at the caapsite A pole aarked 1n 1 ca increaents waa aat in the river Changes in water depth are presented as negative or positive poundroa the initial reading opound 0 em Water teaperature waa aaaaurad in degreea centigrade near shore at a depth opound about 05 bullmiddot Daily aex~aua and miniaua air temperatures were recorded in degrees centigrade SubJective notes were kept by the crew describing wind speed end direction cloud cover and precipitation
A beach seine lt100 poundt long GG aeahaa deep 2-112 in aeah) was set near the aonar aita to capture chua and chinook aalaon poundor ega bullbullx~ and aize aeaaurebullenta Chua and chinook salmon were placed in a holding pen identipoundiad by sex measured poundroa mid-eye to poundark opound tail in bullbullbull and ona scale wea taken poundor age deteraination Scales were reaoved poundroa en area posterior to the baaa opound the dorsal poundin and above the lateral line on the lepoundt aide opound the poundiah The adipoae poundin was clipped on each poundiah bepoundore release to prevent reaaapling Chinook salmon carcaaaea were aaapled in Auguat to auppleaant the beach seine saaple Three acalea were taken poundroa each carcass Scale aamplaa were later pressed on acetate carda and the resulting impressions viewed on a aicropoundiche reader poundor age deteraination
Reaulta and Diacuaaion
Two aonar counterbull ware operated poundroa 21 June through 15 July at approx~aately the aaae aitea used in previous yeara ltFigure 3gt The east bank transducer waa located along a cutbank 37 bull opoundpoundahore and at a depth opound 87 em The west bank transducer was located along a gradually aloping gravel bar approxibullately 60 bull downatreaa poundroa the aaat bank aite The transducer was 152 m opoundpoundahora and at a depth opound 61 ca The entire width opound the river between the tranaducera was insonipound1ad River bottobull gradient was aaooth with no obatructiona to the sonar beaa and bullaximua depth waa 149 ca ea aeaaured on 23 3une ltFigure 3)
River water level waa opound noraal height poundor the time opound year when
6
Eaat Bank
Wea-t Bank
Figure 3 Map of the Anvik River sonar site and river depth profiles as measured on 23 June 1986 for the west bank and on 25 June 1986 for the east bank Shaded areas show approximate range of insonification on these dates weirs are indicated with cross hatching Unequal scale of the axes distorts the presentation
7
the crew arr1ved to begin proJect operations Below average anowpack in the drainage and below average rainpoundall in the spring and ear~y auaaer resulted in steadily declining water levels throughout aonar proJect operation-CFigure 4) Moderate increases in water level on 22 and 27 June were due to pulses opound high water in the Yukon River poundroa heavy rainpoundall in the upper portion opound the Yukon River drainage These pulabullbull opound high water had the epoundfect opound backing up the discharge opound water poundroa the Anvik River drainage Water taaperatura ranged poundroa a low opound 9 C on 26 3une to a high opound ~8 C on 5 3uly while air teaperatura ranged poundroa a low daily ainiaua opound 2 c on 14 3uly to a high daily aaxiaua opound 29 C on 4 July
Sonar anubulleration waa scheduled to continue until 28 July ipound neceaaary but eaergency budget reductiona resulted in teraination opound counting on 15 July Signipoundicant numberbull opound poundish were still being counted at that tiae The adJusted escapement count poundor the period 21 June through ~5 3uly waa 1085750 suaaer chua aa~aon ltTable 1gt A peak adJusted daily count opound 117778 poundish occurred on 30 June which repreaented 108~ opound the total aaaaon sonar count Escapeaent tiaing appeared to be relatively early aa it had been in 1979 198~ and 1983 CFigure 5) Mean date opound run paasege waa 3 July with a standard deviation opound 505 daya The caleulated aean and standard deviation are apoundpoundected by premature termination opound the pro)ect
The cuaulative bullbullcapeaent count for the period 21 June through 15 July opound 1085750 auaaer ehua salaon can be expanded to a total season eacapeaent estimate baaed on historical eacapeent tiaing petterna An average opound 873~ opound the total aeaaon sonar count occurred apoundter 15 July poundor previous years lt1979 1981 and 1963gt with an early tiaing pattern aoat aiailar to that opound 1986 Applying this axpanaion poundactor results in a total seaaon eacapeent eatiaate opound ~189602 auaaer chua aalaon poundor 1986
Historical eacapeaent tiaing patterns were uaed on an in-aeason baaia to proJeet the poundinal eacapeaent eatiaate poundor poundiahery aanagebullent purpoaes Sonar counts poundor the period 21-29 June input into the average tiaing curve poundor an early escapement timing pattern (baaed on 1979 1981 and 1983gt resulted in e proJect~on os 1291000 auaae~ chua aalaon This waa w~thin 9~ opound the actue~ poundinal eacepeaent eatiaata opound 1189602 poundiah
Buk~ia (19$2) expanded the aeason eacapeaent eatimatea poundo~ ~972
through 1978 aak1ng it poaaible to aore directly compare viaual count eatiaatea pound~obull thoae yaara with the aore recent aonar count eatiaatee ltFigure 6) The 1986 eacapeaent eatiaate opound 1189602 auaaar chua aa~aon waa second only to the ~981 eacapeaent opound nearly 13 ail~ion poundiah waa 24 tiaaa greater than the eacapeaant obJective opound 487000 poundiah ltADFG 1985gt and was 20 tiaea greater than the long tera lt1972-1985gt average opound 587714 poundish
A total opound 2423 houra opound aonar calibration waa conducted over a 25 day period at the weat bank aite and sonar accuracy ltsonar
8
I I
I I
1 986 MINMAX AIR TEMPERATURE 30 u 28
2-4
22
20
18 1a
10
bull bull 2
0 111-lt1 2-tun Oa-Jwl
a UINIMUM
1 986 WATER TEMPERATURE
~~----------------------------------------- 1 13 11 10
bull a 7
bull
n 1~IUI
bull I I bull
21a-Jun
1986 RELATIVE WATER DEPTH
0~~----------------------------------------
-10
-20
I =~ -bulloj -10-
-80+-~middot~bull-rbull~~~~middot~middot-middot~middot~middot~~middot~middot~~middot~middotmiddotbull-rbull~middot~~~~~ 18-Jun
Figure 4 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the Anvik River sonar site 1986
9
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
viauelly enuaereted poundrobull ~0 poundt counting towers during sonar calibration ~ioda as a poundurther check on aonar accuracy whenever water and light cond~tiona allowed Polaroid sunglaaaea were worn to reduce water aurpoundace glare
Daily sonar counts were adJusted apoundter the poundield aeason baaed on the calibration date The daily adJUStment poundactor ia the sua opound calibrat~on oscilloscope counts poundor that day divided by the aua opound cel~bration aoner counts poundor tnat day Deily aonar counts were aultiplied by the daily adJuatent poundactor to obtain corrected daily sonar counta Mean and standard deviation opound date opound paaaage were calculated poundollowing the aethod presented by Mundy (1982)
Water depth propoundile at the sonar aite waa aeoaured at 3 a intervals across the width opound the river by probing with a pole aarked in 1 em incrementa Clibullatological data were collected at noon each day at the caapsite A pole aarked 1n 1 ca increaents waa aat in the river Changes in water depth are presented as negative or positive poundroa the initial reading opound 0 em Water teaperature waa aaaaurad in degreea centigrade near shore at a depth opound about 05 bullmiddot Daily aex~aua and miniaua air temperatures were recorded in degrees centigrade SubJective notes were kept by the crew describing wind speed end direction cloud cover and precipitation
A beach seine lt100 poundt long GG aeahaa deep 2-112 in aeah) was set near the aonar aita to capture chua and chinook aalaon poundor ega bullbullx~ and aize aeaaurebullenta Chua and chinook salmon were placed in a holding pen identipoundiad by sex measured poundroa mid-eye to poundark opound tail in bullbullbull and ona scale wea taken poundor age deteraination Scales were reaoved poundroa en area posterior to the baaa opound the dorsal poundin and above the lateral line on the lepoundt aide opound the poundiah The adipoae poundin was clipped on each poundiah bepoundore release to prevent reaaapling Chinook salmon carcaaaea were aaapled in Auguat to auppleaant the beach seine saaple Three acalea were taken poundroa each carcass Scale aamplaa were later pressed on acetate carda and the resulting impressions viewed on a aicropoundiche reader poundor age deteraination
Reaulta and Diacuaaion
Two aonar counterbull ware operated poundroa 21 June through 15 July at approx~aately the aaae aitea used in previous yeara ltFigure 3gt The east bank transducer waa located along a cutbank 37 bull opoundpoundahore and at a depth opound 87 em The west bank transducer was located along a gradually aloping gravel bar approxibullately 60 bull downatreaa poundroa the aaat bank aite The transducer was 152 m opoundpoundahora and at a depth opound 61 ca The entire width opound the river between the tranaducera was insonipound1ad River bottobull gradient was aaooth with no obatructiona to the sonar beaa and bullaximua depth waa 149 ca ea aeaaured on 23 3une ltFigure 3)
River water level waa opound noraal height poundor the time opound year when
6
Eaat Bank
Wea-t Bank
Figure 3 Map of the Anvik River sonar site and river depth profiles as measured on 23 June 1986 for the west bank and on 25 June 1986 for the east bank Shaded areas show approximate range of insonification on these dates weirs are indicated with cross hatching Unequal scale of the axes distorts the presentation
7
the crew arr1ved to begin proJect operations Below average anowpack in the drainage and below average rainpoundall in the spring and ear~y auaaer resulted in steadily declining water levels throughout aonar proJect operation-CFigure 4) Moderate increases in water level on 22 and 27 June were due to pulses opound high water in the Yukon River poundroa heavy rainpoundall in the upper portion opound the Yukon River drainage These pulabullbull opound high water had the epoundfect opound backing up the discharge opound water poundroa the Anvik River drainage Water taaperatura ranged poundroa a low opound 9 C on 26 3une to a high opound ~8 C on 5 3uly while air teaperatura ranged poundroa a low daily ainiaua opound 2 c on 14 3uly to a high daily aaxiaua opound 29 C on 4 July
Sonar anubulleration waa scheduled to continue until 28 July ipound neceaaary but eaergency budget reductiona resulted in teraination opound counting on 15 July Signipoundicant numberbull opound poundish were still being counted at that tiae The adJusted escapement count poundor the period 21 June through ~5 3uly waa 1085750 suaaer chua aa~aon ltTable 1gt A peak adJusted daily count opound 117778 poundish occurred on 30 June which repreaented 108~ opound the total aaaaon sonar count Escapeaent tiaing appeared to be relatively early aa it had been in 1979 198~ and 1983 CFigure 5) Mean date opound run paasege waa 3 July with a standard deviation opound 505 daya The caleulated aean and standard deviation are apoundpoundected by premature termination opound the pro)ect
The cuaulative bullbullcapeaent count for the period 21 June through 15 July opound 1085750 auaaer ehua salaon can be expanded to a total season eacapeaent estimate baaed on historical eacapeent tiaing petterna An average opound 873~ opound the total aeaaon sonar count occurred apoundter 15 July poundor previous years lt1979 1981 and 1963gt with an early tiaing pattern aoat aiailar to that opound 1986 Applying this axpanaion poundactor results in a total seaaon eacapeent eatiaate opound ~189602 auaaer chua aalaon poundor 1986
Historical eacapeaent tiaing patterns were uaed on an in-aeason baaia to proJeet the poundinal eacapeaent eatiaate poundor poundiahery aanagebullent purpoaes Sonar counts poundor the period 21-29 June input into the average tiaing curve poundor an early escapement timing pattern (baaed on 1979 1981 and 1983gt resulted in e proJect~on os 1291000 auaae~ chua aalaon This waa w~thin 9~ opound the actue~ poundinal eacepeaent eatiaata opound 1189602 poundiah
Buk~ia (19$2) expanded the aeason eacapeaent eatimatea poundo~ ~972
through 1978 aak1ng it poaaible to aore directly compare viaual count eatiaatea pound~obull thoae yaara with the aore recent aonar count eatiaatee ltFigure 6) The 1986 eacapeaent eatiaate opound 1189602 auaaar chua aa~aon waa second only to the ~981 eacapeaent opound nearly 13 ail~ion poundiah waa 24 tiaaa greater than the eacapeaant obJective opound 487000 poundiah ltADFG 1985gt and was 20 tiaea greater than the long tera lt1972-1985gt average opound 587714 poundish
A total opound 2423 houra opound aonar calibration waa conducted over a 25 day period at the weat bank aite and sonar accuracy ltsonar
8
I I
I I
1 986 MINMAX AIR TEMPERATURE 30 u 28
2-4
22
20
18 1a
10
bull bull 2
0 111-lt1 2-tun Oa-Jwl
a UINIMUM
1 986 WATER TEMPERATURE
~~----------------------------------------- 1 13 11 10
bull a 7
bull
n 1~IUI
bull I I bull
21a-Jun
1986 RELATIVE WATER DEPTH
0~~----------------------------------------
-10
-20
I =~ -bulloj -10-
-80+-~middot~bull-rbull~~~~middot~middot-middot~middot~middot~~middot~middot~~middot~middotmiddotbull-rbull~middot~~~~~ 18-Jun
Figure 4 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the Anvik River sonar site 1986
9
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
Eaat Bank
Wea-t Bank
Figure 3 Map of the Anvik River sonar site and river depth profiles as measured on 23 June 1986 for the west bank and on 25 June 1986 for the east bank Shaded areas show approximate range of insonification on these dates weirs are indicated with cross hatching Unequal scale of the axes distorts the presentation
7
the crew arr1ved to begin proJect operations Below average anowpack in the drainage and below average rainpoundall in the spring and ear~y auaaer resulted in steadily declining water levels throughout aonar proJect operation-CFigure 4) Moderate increases in water level on 22 and 27 June were due to pulses opound high water in the Yukon River poundroa heavy rainpoundall in the upper portion opound the Yukon River drainage These pulabullbull opound high water had the epoundfect opound backing up the discharge opound water poundroa the Anvik River drainage Water taaperatura ranged poundroa a low opound 9 C on 26 3une to a high opound ~8 C on 5 3uly while air teaperatura ranged poundroa a low daily ainiaua opound 2 c on 14 3uly to a high daily aaxiaua opound 29 C on 4 July
Sonar anubulleration waa scheduled to continue until 28 July ipound neceaaary but eaergency budget reductiona resulted in teraination opound counting on 15 July Signipoundicant numberbull opound poundish were still being counted at that tiae The adJusted escapement count poundor the period 21 June through ~5 3uly waa 1085750 suaaer chua aa~aon ltTable 1gt A peak adJusted daily count opound 117778 poundish occurred on 30 June which repreaented 108~ opound the total aaaaon sonar count Escapeaent tiaing appeared to be relatively early aa it had been in 1979 198~ and 1983 CFigure 5) Mean date opound run paasege waa 3 July with a standard deviation opound 505 daya The caleulated aean and standard deviation are apoundpoundected by premature termination opound the pro)ect
The cuaulative bullbullcapeaent count for the period 21 June through 15 July opound 1085750 auaaer ehua salaon can be expanded to a total season eacapeaent estimate baaed on historical eacapeent tiaing petterna An average opound 873~ opound the total aeaaon sonar count occurred apoundter 15 July poundor previous years lt1979 1981 and 1963gt with an early tiaing pattern aoat aiailar to that opound 1986 Applying this axpanaion poundactor results in a total seaaon eacapeent eatiaate opound ~189602 auaaer chua aalaon poundor 1986
Historical eacapeaent tiaing patterns were uaed on an in-aeason baaia to proJeet the poundinal eacapeaent eatiaate poundor poundiahery aanagebullent purpoaes Sonar counts poundor the period 21-29 June input into the average tiaing curve poundor an early escapement timing pattern (baaed on 1979 1981 and 1983gt resulted in e proJect~on os 1291000 auaae~ chua aalaon This waa w~thin 9~ opound the actue~ poundinal eacepeaent eatiaata opound 1189602 poundiah
Buk~ia (19$2) expanded the aeason eacapeaent eatimatea poundo~ ~972
through 1978 aak1ng it poaaible to aore directly compare viaual count eatiaatea pound~obull thoae yaara with the aore recent aonar count eatiaatee ltFigure 6) The 1986 eacapeaent eatiaate opound 1189602 auaaar chua aa~aon waa second only to the ~981 eacapeaent opound nearly 13 ail~ion poundiah waa 24 tiaaa greater than the eacapeaant obJective opound 487000 poundiah ltADFG 1985gt and was 20 tiaea greater than the long tera lt1972-1985gt average opound 587714 poundish
A total opound 2423 houra opound aonar calibration waa conducted over a 25 day period at the weat bank aite and sonar accuracy ltsonar
8
I I
I I
1 986 MINMAX AIR TEMPERATURE 30 u 28
2-4
22
20
18 1a
10
bull bull 2
0 111-lt1 2-tun Oa-Jwl
a UINIMUM
1 986 WATER TEMPERATURE
~~----------------------------------------- 1 13 11 10
bull a 7
bull
n 1~IUI
bull I I bull
21a-Jun
1986 RELATIVE WATER DEPTH
0~~----------------------------------------
-10
-20
I =~ -bulloj -10-
-80+-~middot~bull-rbull~~~~middot~middot-middot~middot~middot~~middot~middot~~middot~middotmiddotbull-rbull~middot~~~~~ 18-Jun
Figure 4 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the Anvik River sonar site 1986
9
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
the crew arr1ved to begin proJect operations Below average anowpack in the drainage and below average rainpoundall in the spring and ear~y auaaer resulted in steadily declining water levels throughout aonar proJect operation-CFigure 4) Moderate increases in water level on 22 and 27 June were due to pulses opound high water in the Yukon River poundroa heavy rainpoundall in the upper portion opound the Yukon River drainage These pulabullbull opound high water had the epoundfect opound backing up the discharge opound water poundroa the Anvik River drainage Water taaperatura ranged poundroa a low opound 9 C on 26 3une to a high opound ~8 C on 5 3uly while air teaperatura ranged poundroa a low daily ainiaua opound 2 c on 14 3uly to a high daily aaxiaua opound 29 C on 4 July
Sonar anubulleration waa scheduled to continue until 28 July ipound neceaaary but eaergency budget reductiona resulted in teraination opound counting on 15 July Signipoundicant numberbull opound poundish were still being counted at that tiae The adJusted escapement count poundor the period 21 June through ~5 3uly waa 1085750 suaaer chua aa~aon ltTable 1gt A peak adJusted daily count opound 117778 poundish occurred on 30 June which repreaented 108~ opound the total aaaaon sonar count Escapeaent tiaing appeared to be relatively early aa it had been in 1979 198~ and 1983 CFigure 5) Mean date opound run paasege waa 3 July with a standard deviation opound 505 daya The caleulated aean and standard deviation are apoundpoundected by premature termination opound the pro)ect
The cuaulative bullbullcapeaent count for the period 21 June through 15 July opound 1085750 auaaer ehua salaon can be expanded to a total season eacapeaent estimate baaed on historical eacapeent tiaing petterna An average opound 873~ opound the total aeaaon sonar count occurred apoundter 15 July poundor previous years lt1979 1981 and 1963gt with an early tiaing pattern aoat aiailar to that opound 1986 Applying this axpanaion poundactor results in a total seaaon eacapeent eatiaate opound ~189602 auaaer chua aalaon poundor 1986
Historical eacapeaent tiaing patterns were uaed on an in-aeason baaia to proJeet the poundinal eacapeaent eatiaate poundor poundiahery aanagebullent purpoaes Sonar counts poundor the period 21-29 June input into the average tiaing curve poundor an early escapement timing pattern (baaed on 1979 1981 and 1983gt resulted in e proJect~on os 1291000 auaae~ chua aalaon This waa w~thin 9~ opound the actue~ poundinal eacepeaent eatiaata opound 1189602 poundiah
Buk~ia (19$2) expanded the aeason eacapeaent eatimatea poundo~ ~972
through 1978 aak1ng it poaaible to aore directly compare viaual count eatiaatea pound~obull thoae yaara with the aore recent aonar count eatiaatee ltFigure 6) The 1986 eacapeaent eatiaate opound 1189602 auaaar chua aa~aon waa second only to the ~981 eacapeaent opound nearly 13 ail~ion poundiah waa 24 tiaaa greater than the eacapeaant obJective opound 487000 poundiah ltADFG 1985gt and was 20 tiaea greater than the long tera lt1972-1985gt average opound 587714 poundish
A total opound 2423 houra opound aonar calibration waa conducted over a 25 day period at the weat bank aite and sonar accuracy ltsonar
8
I I
I I
1 986 MINMAX AIR TEMPERATURE 30 u 28
2-4
22
20
18 1a
10
bull bull 2
0 111-lt1 2-tun Oa-Jwl
a UINIMUM
1 986 WATER TEMPERATURE
~~----------------------------------------- 1 13 11 10
bull a 7
bull
n 1~IUI
bull I I bull
21a-Jun
1986 RELATIVE WATER DEPTH
0~~----------------------------------------
-10
-20
I =~ -bulloj -10-
-80+-~middot~bull-rbull~~~~middot~middot-middot~middot~middot~~middot~middot~~middot~middotmiddotbull-rbull~middot~~~~~ 18-Jun
Figure 4 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the Anvik River sonar site 1986
9
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
I I
I I
1 986 MINMAX AIR TEMPERATURE 30 u 28
2-4
22
20
18 1a
10
bull bull 2
0 111-lt1 2-tun Oa-Jwl
a UINIMUM
1 986 WATER TEMPERATURE
~~----------------------------------------- 1 13 11 10
bull a 7
bull
n 1~IUI
bull I I bull
21a-Jun
1986 RELATIVE WATER DEPTH
0~~----------------------------------------
-10
-20
I =~ -bulloj -10-
-80+-~middot~bull-rbull~~~~middot~middot-middot~middot~middot~~middot~middot~~middot~middotmiddotbull-rbull~middot~~~~~ 18-Jun
Figure 4 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the Anvik River sonar site 1986
9
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
21-Jun 22-Jun 23bullJun 24-Jun -25-Jun 26-Jun 27-Jwl 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul l3middotJul J4-3ul OS-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-JUl UbullJul 12-Jul 13-Jul 14-Jul 15-Jul
Rev Ad]Uat ~lect
Da~ly F~~ bull O~ly
191 2310 middot~middotU7
9~182
1 ~608 20375 50826 66~079
71932 578~
39l~
63687 18037 18839 18728 30000 26804 22960 20~
14226 14518 10~
9673 lSdl 18914
620718
a
0
0 2
3 1
3
5
3
3
l bull 22 12 t= 127 100 07 063 On 081 09 11 10 132 1 2 10 109 103 09 089 14 1laquo5 10 093 10 09a
233 2957 4638
12169 14608 14253 32020 49559 s~
5438 4306S 44561 23809 23172 1891~
32700 27608 21311 18654 20628 21051 10850 8996
1=t 18536
--~ 971
--------~----------------------
Rev Ad]Uat Daily F~ a
1 128 b 10 128 b
200 1 bull 28 b 18 128 b
(j07 128 4692 oaa 3middot620 078
48715 oeo 152296 080 71226 089 75172 091 50780 oa8 37047 092 41amp57 086 20998 100 ~070 089 J7 3Z 102 14634 132 21781 103 19695 oaa 7639 101 5amp2S 096 4808 106 6408 123 7amplaquo 122
~ 769
1 13 ~
23 116J 4129 2824
38972 41~
63391 W407 amp86 3463S 35825 20998 23202 17672 19317 22434 17332middot 771~
~~co
5095 7M2 9S7l
492779
~--------------------- ----------DeJly sa-n Daily Seeon COunt COunt Plop hop
---234 234 2970 3204 4amp94 8098
12192 20290 15769 360159 18392 54451 34at 89~
48531 177826 100102 ZT7928 117778 395706 111472 507178
89247 S964~
s 654869 ~-997 713866 39913 7S3779 55902 809641 45280 854961 40amp88 895649 41oeamp 936737 ~960 974697 28766 1003463 16250 1019713 140laquo2 1033~
23838 1=7643 28l07 1oasr50
J1amp9602 c
- -
o o o o o o o o omiddot o o o o o o o o o o o o o o o o
0002 0027 0045 0112 014~
0169 0321 0615 0922 10ampi 1027 0822 0138 0543 0368 0515 0417 0375 0378 0350 02~
0150 0130 0220 02S9
00002 00030 o oor-5 00187 00332 0~2
00822 01638 02S60 0364S 0 671 05493 06031 06575 06942 07457 07874 08249 08628 08977 09242 09392 09522 09741 10000
---------bull Ad)uataan~ ~actor ia thbull da~ly aubull ol cal~~an ~llo~ counta d~vidad by thbull daily aua of
cali~ation aonar counta S Tebl 2 and 3 poundor aner cali~bull~oft ~ate b 1oo - fiab _ ccnlfttad durU19 calibzatian ~Jodbull to otrtaUI ampft eccurbulltbull daily count bulldJuatant
factar The ad]uabeat pound~ opound 128 poundor 25 JWIIbull -bull uaecl bullbull tbia -bull tbbull poundirat -ura opound couating ~acy beaed on bull aupound~ic~ant plbullbull
c CUule~vbull bullbullcapaant count for tha ~iod 21 Juna through lS July opound 1085750 auaaer ehua aal-an -bull ~ to bull totel --- eatuat of 1189602 fiab beaad em 1ia~ic aaca~t tiaing pett~Da Aa ~gbull opound 873bull opound tbbull total aon onar ~t ~red apoundtr 15 July for pleviou yeaza (1379 1981~ and 1983) witb an bulla-~y tiaiq ~tterft bull-t aiai~ar ta tbat opound 1986 Counting w tbull~bull~at~ wh~le bullign~poundicaat poundta paaaagbull waa a~l~ occu~~1ng in 1986 dubull to funding euta
10
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
i I ts 1-
I
1 979 ANVIK RIVER SUMMER CHUM IWLI ESCiVEIA1M
ZlC
11lCmiddot
CilC 50=633 IIC
bull 7S
Illmiddot
lllC
41( -2)1
liE ~ _
~
la-lun 28-llln ~~ raquo--
lzle
tnr till(
1981 ANVIK RIVER SUMMER CHUM IWLY~
SD=736
~ rrrr~tos -
I amp-lull
~ I ~ -I
IX
12lC
t1lC
tall
1980 ANVIK RIVER SUMMER CHUM DyenY ESCAIIoiNI
50=638
-
1982 ANVIK RIVER SUMMER CHUM DoLY ESCAPEUEHt
SD=593
- rnn
10--1
Figure 5 Anvik River summer chum salmon sonar counts by day~ 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar~ and standard deviation (SD) of the mean is given
11
I
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
i I Irs
I
I I IL 0
I
1983 ANVIK RIVER SUMMER CHUM IWLY E8CAIDIEHJ
1211
j 111lC 50=686 -- - D
2lC
111 -_ 1~
1985 ANVIK RNER SUMMER CHUM 211
11S
llllC - - -211
1S
CIIIC I~
DMY~
50=478
bullss~
I~
~
I ~
i I
~ 8 i ~
I
1984 ANVIK RIVER SUMMER CHUM 1211
IWLY~
111C
1M SD=651 - -- D - ril IS
middotr~ -1amp-Yn u-~ 15--1111 zoIUII
1986 ANVIK RIVER SUMMER CHUM ~y~
I Ill middot-- 50=505 - -n a 2JImiddotbull
b nrs -_ zamp-lun a~ 111-1111 la-lul
Figure 5 (Continued Anvik River summer chum salmon sonar counts by day 1979-1986 Mean date of run passage (calculated with Day 1 = 16 June) is indicated by shaded bar and standard deviation (SD) of the mean is given
12
I
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
15 ---------------------------------~~----------------~
14
13
12
11
1
0 9
08
07
06
05
04
03
02
01
0 ~~~~~~~~~~~~~6yen~~~~~yen4~~~~~~~
1972 1974 1976 1978 1980 1982 1984 1986
ZZI Both Tower amp Aerial ~ Sonar
Figure 6 Anvik River summer chum salmon escapement estimated by combined tower and aerial survey counts 1972-1978 and by side-scanning sonar 1979-1986
13
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
eountoacilloscope countgt averaged 107 ltTable 2gt Although viaual counta were not uaed to direct~y ca~ibrate the sonar electronica due to poundrequently poor visual counting conditions they did provi~e a aeaaure opound salmon apeciea coapoaition and an aaaeaaaent opound aonar aiaing and counting accuracy A net upstream total opound 11793 chua salbullon 9 chinook aa~bullon and 205 pink aalaon waa visually anuaerated at the weat bank aite during a~~
calibration periods coabined Sonar accuracy averaged 110 poundor 2354 hours opound oscilloscope calibration at the east bank site over a period opound 25 daya ltTable 3gt A net upetream total opound 17569 chua aalaon 29 chinook salmon and 154 pink aa~aon was visually anuaerated during theae calibration periods Daily calibration oacilloacope and sonar counts poundor each bank were used to adJUat the daily aonar counts poundor that bank which were then summed to obtain corrected daily eacapeaent aatiaates
The tranaducer deployment aethod uaed in 1986 proved to be very epoundect1ve It waa eaay to aake adJuatente to transducer aiming and poa~tioning in reaponae to changes in water levels and poundish behavior Thia aethod opound deployment would have perpoundoraed well in the high water conditions experienced in 1985 un~ike the aoner aubatrate endpiecea that were actua1ly used lt8uk1ia ~985)
Teaporal distribution opound the cobullbined east and west bank unadjuated aonar counta by hour indicates a diatinct diel pattern ltFigure 7gt Thia pattern becaae aore pronounced as the season progreaaed Counts were lowest during 1300-1400 lt28~ opound daily totalgt and greateat during 0~00-0200 lt56~ opound daily total) poundor the entire aeaaon coabined
Spatial distribution opound aonar counta by sector indicates that aoat opound the aalaon paaaage occurred in the poundirst two sectors opound the weat bank and tha irst three aectora opound the eaat bank ltFigure 8gt Moat opound the aalaon passage occurred along the west bank during the poundirat poundaw daya opound enuaeration but aubatantiel nuabera opound poundiah were counted along the east bank beginning on 28 3une For the entire aeeaon and both banka combined weat bank aectora 1 and 2 accounted poundor 53- opound all unad)uated sonar counts while eaat bank aectora 12 and 3 accounted poundor 45~
An aerial eurvey o the AnYiX River ltincluding Otter Creak McDonald Creek and Yellow River) waa poundlown on 28 July under good aurvey conditiona Survey tiaing was ~ate due to poor weather and atreaa conditions earlier in the optimal aurvey per~od opound 20 to 31 July A total opound 1118 chinook salaon waa enuaerated Th~s
waa the largest chinook aalaon eacapeaent count poundor the Anvik River drainage aince 1980 The count opound 918 chinook aalaon in the aainatea Anvik River between Yellow River and McDonald Creek achieved thbull aerial survey eacapaaent obJective opound 300 to 500 chinook salmon poundor thia index area ltADFG 1985) An accurate auaaer chubull aalaon escapebullbullnt count could not be obtained due to the late timing opound tbe aurvey
Forty-aix beach ae1ne eeta ware aade poundrobull 22 June to 14 July and a total opound 52~ chua aalaon 3 chinook aalaon and 21 pink salmon
14
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
Taltlbull 2 OacJlloa ~pe and viaual clihratian opound -lbullcm acmazo counta at thbull Anvik Rivr wa1 benk ut bullbull 19e6
ViaUampl Count a
--~~-------------------------------------------Chua Chinook Pink Hour a Coun1 ------------------- -------Otbull Up Down NC Up Up Down Hbullt
---------------middot-------21-JIIl 22-Ju 23-Jun 24-Jua 2S-Jun 26-Jua 27-1lft 28-Jua 29-Jun 30-Jlln 01-Jul 02-Jul 03-Jul 04-Jul OS-Jul 06-Jul 07-Jul oa-Jul ()g-Jul lG-Jul 11-Jul 12-rul 13-Jul 14-Jal 15-Jul
100 14 oaa sa lSO 173 1-u lM 153 ~ampaa
108 ~4
083 15$3 oso 1481 100 2641 100 15e0 OS 761 oa3 488 100 389 100 ti3 092 487 07S 784 083 823 108 831 OS 364 083 272 100 221 083 205 1 bull 17 311 100 594 oS 370
17 74
182 209 686 454 916
1115 21S3 1494
836 499 510 611 494 a so 849 779 330 3M 318 212 292 614 361
0amp2 0 7 09S 079 100 142 19 133 123 106 091 098 076 oa1 099 0912 097 107 1 bull 12 069 069 097 107 097 102
10 171 150 339 370
1135 2047 1~
769 SlO S6amp l62 386
3S2 777 2S2 27S 167 134 251 606 272
0 0 0 0 0 0 0 0 0 0 0 0 3 4 2
3 2 3 6 3 2 7 2
10 127 150 339 370 446
1135 2047 135S
769 540 56Smiddot bullsa 384
0 349 775 2 9 269 1~
132 2 604 264
1
1
1
1
3 1
1
0
0
0
0
0 0
0
1
1
1
3 1
1
3 s 3 3 2 2
5 22 12 a
21 71 40
0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
3 s 3 3 2 2
s 22 12
4 a
21 71 40
------------------------------ -------------------------------------- -------bull Viauel ccnmta rbull liated bullbull upatr_ CU dawnatrbull- with nC betng the dipoundpoundm-ncbull
betwen ~- tvo Erro~bull in apecpound identipoundi~on o~ aubullration opound pound1ah bullbullY have ~ bullbullde due to POQZ t- clarlty aurfaa gl~ ob~iCillbull englbull 0pound vialcm and lacR rd background cantzoaet ageJnbullt Ubull natural riv- bottoa In addition Yiaua~ couating wbullbull not conducted du~ing all =bulll~etion ~1oda dubull to thbull opoundpoundahorbull bulloveaent oi poundiab under certain conditionbull vhbulln a t~ obaerver waa pr--nt
15
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
Tab~bull 3 OCi~~oaccpe ad vibullvbull~ calplusmnbrat1on ~ aalan aonr count at the Anvi~ River eaat bank a1te 1986
~-----------~-----------------------------Chua Cbnook Pink
Date Moura Count
Sonar Count
Scope Sonazo I Count Scope Up Down Met Up Down Met Up Down Net
--------------~middot----~~~~~---21-~un 100 0 9 ooo ---------------------------------------------22-3UD 1~00 0 0 000 23-3un 100 3 12 o~
24-Jun 100 0 1 ooo ~-3lft 1 23 99 127 o 78 26-~un oa3 212 188 113 27-Jun osa a~ 66 129 28-JUD 100 2434 1950 1~
29-3un 100 2115 1695 1~
30-Jun 100 2~8 2328 112 01-J~ 075 2618 2370 110 02-~ul 083 16SS 1466 113 03-Jul 083 1322 1208 109 04-Jul oa3 1~+0 1329 116 ~-Jul 083 92S 928 100 06-3ul 100 1366 1216 112 07-Jul 100 674 691 098 ~Jul 100 453 594 076 09-J~ 108 1014 1050 097 1o-Jul 092 1090 962 113 11~J~ 100 344 349 099 12-Jul 083 198 191 104 13-J~ 117 274 290 094 14-Jul 108 345 ~ 081 15bull3ul o7S 172 210 042
3
7 11 83
1900 1522 2181 2 bull 291 1377 1033 1223
888 1169
610 389
1~
886 246 103 145 344 132
0
0 0 0 0 0 0 0 1 0 0 0 0 2 2 1
3 1 0 4 1
11 83
1900 1522 2181 2291 1376 1033 1223
888 1169
amp08 387
10 882 243 102 145 3+0 131
1 3
2 1 1 2
0 0
0 0 0
0 0
0 0 0
1 3
2 1
7
1 2 4
2 8 7 6 5 1 2
ll 20
6 2
13 38 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1
2 8 7 6 5 4 1 2
ll 20
6 2
13 36 29
1154
------------------------------- --------------------------bull Yiauel cowi~ are liated bullbull upau- or downatra- vi~ middotbullnet being the diference
betweea tbe tWCII EampTorbull in ~iaa identipoundicatJon or enu-era~ion tlf pound1amph bullbullY have beaD bulladbull due to ~ ~ c~arity aurpoundace glare ob~iqubull ang~e apound vibullion~ ancl lack opound backgzOUnd ccmtraet agampinat the raetlral river bottoa In adclition bull1aua~ cOYnting vaa not conducted dy~ing all cali~a~on ~ioda due to the opoundpound~ra ~t opound poundiah middot un4er certain ccmditiona when bull tower obaerver waa pre nt
16
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 I I
7 n=350779 7 n=593978
[I rd ~~ 17
~r l7 [I~ ~~ vv Cl[
~B~ ~~ [[ pound1 ~[~[~~~
[[ vv ~[I Cl[ [V[I e~~~~~~~
~~~~~~~~~~~[1[(1~~~ vv fl[ ~ [I~ v V n~ ~ ~ II V II ll V
v~vvv[~~~vv~~~fl~~~ ~~ ~~ V~~~IIVVIIIIII~VY
~ ~ vr~ ~~~~[[[~~~~[~~~~
~
~ ~~ v~v~~~ ~~ ~~~~~~v~ l7 ~~ v~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~[~r V ~~~ ~[~~~~~~[ [I ~~~ ~~~~~~~~~~~~~~~~IIIIVIIII~~~ VIIVVVV~V~v~vV IIVV ~~~~~~~~~[1[~~v~ 1111 v
I I
I II
2 2
a a 3 II 7 I 11 13 II 17 II 21 ZS 3i I 7 I It 13 111 17 II 21 21
HOUR f1f 1HE MY ltaUit til 1m J)l(
JULY 8 -JULY 15 1986 1986 SEASON JUNE 21 - JULY 15
bull bull n=ll60487
1717
[[ 1fl[l B ~~~ ~~~
~~ ~~~~~
[I [I r v~vv~~~v ~
[I ri
11 v11~~~~~V~ ~~ [l[[~vv~~VVVVrlll
fl[lvv~~vll~~~~~~ ~~ I r1 v ~~~~~~~~~( ~[I v11v [[[[~~~~~~~~~~ [I[
P-r n=215730 ~~~
171 B ~~~ ~~~e ~ ~ ~~~~~[I ~ ~ ~~~~~~~
[I ~ v~
middot~~~~ ~ ~ ~ ~ ~ [I~~
fl~ ~~~~~~~~ [1[[1 [
~~ ~~~~~~~~[[([ 1 f [I
~~~~~~~~~~~~~[1[1[1 ~ ~~ ~~~~~~tf ~Vllrl II [[I
)[I
7 7
bull bull II II
II
2
0 0 3 II 1 I 11 t IS 17 II 21 21 J II 7 I 11 IJ 111 17 II U 2i5
ltCIUIIt t1l Dot HOUR f1f 1HK DAY
Figure 7 Anvik River summer chum salmon sonar counts by hour of the day for the early (21-29 June) middle (30 June-7 July) and late (8-15 July) portion of the season~ and for the entire 1986 season combined Total sonar counts (n) used for this analysis are given for each period
17
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
I
I
JUNE 21 - JUNE 29 1986 JUNE 30 - JULY 7 1986 70
-~ ~
aa~
~ 411~
il v sa~
~ zo~
~ 10 ~
~~ a 3
70
ID
110
~ ~ ~
so ~
~ 20-~
I 10 ~
I
0 11PA-1 3
Figure 8
n=350779 1 n=593978 I
I lt10
311
17
~ zo ~ ~ 10
~ _ 0
a 7 bull 11 13 17 11 21 D a 7 t 13 111 17 11 21 2ll
IOfWI 88TOtl IOfWI Sllmllr
JULY 8 - JULY 1 5 1986 1 986 SEASON JUNE 21 - JULY 15 711
n=215730 80 n=ll60487 50
I bull 311
7 211
~~ 1 10
-~~ ~ 0
II 7 bull u 11 111 17 bullbull tl 23 a II 1 bull 11 11 111 17 11 21
SONM secmR IIOtWI smmlll
Anvik River summer chum salmon sonar counts by sonar sector for the early (21-29 June) middle 30 June-7 July) and late (8-15 July) portion of the season and for the entire 1986 season combined Sector 1 is west bank sector 1 12 is west bank sector 12 13 is east bank sector 12 and 24 is east bank sector 1 Total sonar counts (n) used for this analysis are given for each period
18
201
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
was captured ltAppend~x Table 1) An attempt wea made to collect edd~tional ch~nook salmon aaaplea by carcass survey in August Due to heavy rainfell froa aid-July thr~gh August and resulting high water oond~tiona only 145 ch~nook salmon were bullbullbullpled by carcass aurvey poundrom 10 to 20 August
Of the 521 chuJR salmon sampled poundor age-aex-aize data 486 (93gt later proved to have ageable scales Age coaposit~on was 68 age 5 30 age 4 04 age 3 and 14 age 6 ltAppendix Table 2J Feaalea accounted for 58~ of the sample Age 4 usually accounts for tbe aaJority opound the Anvik R~ver eacapeaent Age 5 was stronger in 1972 1976 and 1981 but ~n all other years since 1972 age 4 haa been the predominant age class ltFigure 9) The atrong contribution opound age 5 poundish to the 1986 eacapeaent is a result opound the record parent year eecapement in 1981 opound almost 15 aillion fiah and the below average eecapeaant in 1982 Age eoaposition of the lower Yukon River eomaere~el eateh varied by aeah size and progreaaion opound the run but a atrong age ~
cobullponent waa apparent poundor all poundiahing periods sampled aimilar to the eacapeaent aeaple ltBukl~a and Merritt In Prepgt
0pound the 148 chinook salmon aeapled poundor age-aex-size data ~42
lt96~gt later proved to have ageable acalea Age coapoaition was 1~ age 4 50 ageS 38~ age 6 and 11~ age 7 ltAppendix Table 3) Feaalea accounted poundor 63~ opound the sample Age 4 contribution waa weaker than in pravioua years ages S and 7 were relatively stronger and age 6 waa near average ltFigure 10gt The record female component ia l~nked to the unusual contributions by ages 4 and 7 However age and aex composition eatiaatea may be biased by small sample aize and the epoundpoundbullct opound r~ver flooding on the availabil~ty opound aalee which die opoundpound earlier than females Both the unrestricted and 6 in bullbullx~mum mesh size gillnet coaaercisl poundiaheriea in the lower Yukon River caught a higher than normal proportion opound agea 5 and 7 chinook salmon and a lower proportion opound ages 4 and 6 poundiah in 1986 ltBukl~a and Merritt In Prep) This indicates poor brood year production from strong eacapebullents in 1980 which ia poundurther supported by the poor contr~bution opound a~e S poundish to catch and escapement aamp1ea in 1985
ANDREAFSKY RIVER SALMON STUDY
The Andraspoundaky River ltFigure 11gt includes two aain branches the East and Wbullat Forks and ia located 100 ailea upstream poundrom the aouth of the Yukon R~ver It typ~cally ranka second to the Anvik River in auaaer chua aalaon eacapebullent aecond to the Salcha River in chinook aalaon escapement and aupporta the largest pink aalbullon population in the Yukon River drainage Salmon escapements were eat~aated annually in each fork by aerial aurvey poundroa fixed wing aircrapoundt prior to 1981 A aide-scanning sonar counter waa inata~le4 in the Eaat Fork poundor the poundirat tiae in 1981 to obta~n
more complete and accurate eacapebullent inpoundoraation than could be obtained by aerial aurvey
19
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
I
I
o bullbull
111
07
01
114
IU
112
01
0 1172 S74
cu
oa
aT
ao
011
D4
IU
02
01
0 bull1872 1174
AGE 3
ten tea 1114
IZZI~
AGE 5
1171 IIIII 11112 t- 111111111
IZZI I1MMI
07
1110
Dll
OA
03
01
AGE 4
AGE 6
Figure 9 Age and sex composition of Anvik River summer chum salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 6
20
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
I
I
AGE 4 AGE 5
u
117 ot
I oa
o4
113 u
aa oz 01
0 bull 4 1~ ~ 1~4
IZZI
AGE 6 AGE 7
I
Figure 10 Age and sex composition of Anvik River chinook salmon 1972-1986 presented as proportion of total sample for each year by age class Note different scale for age 7
21
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
X
bull 0 2
ILbulls 4
West Bank
East Bank
p of the Andreafsky River and of the tower site (inset) located river mile 20 of the East Fork
22
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
The aaina~ebull Andreapoundaky R~ver below the conpoundluence opound the East and Weat Forks ia not au~table poundor aide-scanning sonar operation due to ita width and alack current The Eaat Fork waa chosen poundor aonar enueration in 1981 because it supports a greater average auaaer chum aalaon escapement than the Weat Fork baaed on hiatorical aerial survey data In additicn a poundeaaible aonar site could be located lower on the East Fork than on the West Fork potentially enuaerat~ng a greater proportion opound the spawners and aibullplipoundying logiatica There 1a also leaa recreational use opound the Eaat Fork by the res~denta opound St Marya a village opound 500 people located near the conpoundluence opound the Andreapoundaky and Yukon Rivera
Sonar webull used to enuaerate auaaer chua aalaon eacapeaenta to the Eaat Fork Andreapoundaky River poundrobull 1981 through 1984 Flood conditions in 1985 prohibited accurate sonar enuaeration with the transducer deployment aethods available at that tiae ltBuklia 1985) Aa a reault an iaproved trenaducer deployaent aethod was developed and waa available poundor uaa on the Andreapoundaky R~ver in 1986 Thia waa the tranadueer deployaent aathod applied on the Anvik River poundor the poundirat tiaa in 1986
Large pink aelaon eacapeaenta in 1982 end 1984 apoundpoundacted the accuracy opound eatiaating auaaer chua aalaon eacapaaent uaing s~deshy
acenning aonar A contingency plan was developed poundor 1986 whereby visual counting poundrom towers would be used instead opound sonar to estimate the 1986 eacapeaent by apeciea to the East Fork Andreapoundsky River ipound water conditione perbullittad Water lavale and clarity were poundavorable and tower counting waa aucceaapoundully applied poundor the entire aeaaon poundor the poundirat tibulle in thia atraea
Methods and Materiala
The aaae aite uaed previously poundor acnar enumeration waa selected poundor the tower site A weir was built poundroa each shore with an initial openning opound approximately 13 bull in the center poundor poundiah passage This waa reduced as water level decreased The 20 poundt tower was initially placed on the weat aida opound the weir openning than bulloved to the east aide aa visual conditions proved superior poundroa that angle A green plastic tarp waa set on the river bottoa acroaa the weir openning to provide contrast poundor poundiah apeciea identipoundication and enuaeration purpoaea Polaroid sungleaaea ware worn during daylight houra~ and 12 volt laMps were used to illuainate tha weir openning during hours opound darkness
The proJect design initially was aa poundollowa Each day waa divided into 4 counting perioda opound 6 hr duration 0000-0600 0600-1200 1200-1800 and 1800-2400 A counting schedule conaiated opound periods 1 and 3 or 2 and 4 and waa poundollowed poundor six consecutive daya poundach opound the two peraona on the crew waa assigned one 6 hr ahipoundt poundor wh~ch that person would be responaiblbull poundor the aix dey period _ Mo counting waa conducted on the seventh day Tba alternate counting schedule wae then iapleaented poundor the next six day period poundacapeaent counts were interpolated poundor the aiasing
23
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
dey using the coun~a poundor the preceeding and poundollowing day
Each hour on the halpound hour during hia daily count1ng ahipoundt the observer counted poundiah paaaege by apec1ea and direction ltie upatreaa or downatraaa aoving) poundor a 15 ainute period ua1ng nand held talley countera Theae counts were entered on a data poundorm and net upatraaa counts by species au~tiplied by 4 to obtain an hourly peaaage estiaate poundor each aalaon species The resulting 12 hourly aalbullon counts were Multiplied by 2 to obtain a daily eacapeaant eatiaate poundor in~seaaon aanagement purposes Postshyseason eatiaatea presented in this report are repoundined by calculating the relationship between hourly paaaage ratea across the entire aeaaon
These methods were aodipoundied aoaewhat during the aeaaon aa a result opound the hourly distribution opound counts The dey waa divided into three counting periods 0000-0800 0800-1600 and 1600-2400 Counting was conducted during the third period each day Counting waa conducted during periods one and two on alternate days The daily eacapament was estiaated during the season by auaaing counta poundor the two perioda counted end adding en interpolated eatiaata poundor the period not counted baaed on the preceeding and poundollowing day poundor that period Post aeeson eatiaates presented in thia report are repoundined by calculating the relationship between hourly paaaage rates acroaa the entire aeeson
Methode poundor measuring atreabull profile recording climatological data and aaapling poundiah poundor age aex and aize data were the same aa thoae deacribed previously for the Anvik River atudy
Reaulta and Discussion
The tower counting proJect waa operat~onal poundroa 25 June through 14 July The weir openning was approximately 13 bull wide on 19 June and aaxiaua water depth wes 130 ca ltFigure 12gt River water level waa opound noraal height poundor the tiae opound year when the crew arrived to begin proJect operations Below average anowpeek in the drainage and below average rainpoundall in the apring and early auaaer resulted in ateadily declining water levels throughout tower proJect operation after an initial peak on 26 June ltFigure 13gt As for the Anvik River aite this peek waa due to a pulse opound high watar in the Yukon River poundroa heavy ra~npoundall in the upper portion opound the Yukon River drainage Water clarity waa good throughout the aeaaon Water temparature ranged poundroa a low opound 9 C on 26 Junbull to a high of 17 C on 4 JU~Yr while a1r temperature ranged poundroa a low daily m1n1aua opound 2 C on 14 July to a high daily aexibullubull opound 29 C on 4 July
The expanded eacapeaent eat~mate poundor the period 25 June through 14 3uly waa 152730 auamer chua aalmon 1530 chinook salmon and 124618 pink salmon ltTable 4gt Expansion poundormulaa were developed poundor each species end daily time block on a poat-seaaon basia ltAppend~ Tables 4-6gt in order to obtain these eacapement estimatebullmiddot Tower enuaeration was scheduled to cont1nue until 28
24
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
sect
E
DEFraquoTH MEASURED ON JUNE 19 0
-10 -ao -so -+O -ao -bullo -70
-bulla -bullo
-1CICI _ 10
-1amp0 -10 -1 0 -1 eo
Cl
DE~TH MEASURED ON JULY 10 0
-10 -zo -~~a
-+o -bullo -bullo -70
-bullo -bullco -1c10
-1 1Q -1ampCI -1=10 -140 -1a0
0 ao +o CgtIAfIC31111 ~flltCnA WE-r 1-0flltiiLINIIII (rTgt
Fi~ure 12 River depth profiles -of the East Fork Andreafsky River tower site as measured on 19 June and 10 July 1986 Cross hatching indicates weirs Unequal scale of the axes distorts the presentation
25
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
1 986 MINMAX AIR TEMPERATURE 30
2a
zbull 24
~
I zo
I 14
12
10
bull bull 2
0 Z2-lun
bull WAXMUM
1 986 WATER TEMPERATURE 20 1SI
middotmiddot~ 17 1 HS
I 14 1 s ) 12 11 10
I bull bull 7
bull a
H I I I I I I I I
2Z-IUft 02-lul 12-IYI
1 986 RELATIVE WATER DEPTH
15 ~ 10
a
-so4---~~~---T~~~~~T-~~~~~~~~~
22-Hin 02-IUI 12-IUI
Figure 13 Air temperature (daily minimum and maximum) water temperature and relative water depth measured at noon daily at the East Fork Andre~fsky River tower site 1986
26
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
Tabla 4 Eaat Fork Andrbullapoundaky River bullxpandad ~owar counta opound aalaon aacapabullan~ by apac1aa and da~a 1986 a
Chinook Salaon P J nk Sa lw1on
Data
215-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 06-Jul 07-Jul 08-Jul 09-Jul 10-Jul 11-Jul 12-Jul 13-Jul 14-Jul
Daily Count
117 1083 6731 9503
12290 13948
117 1200 7931
17ot40 29730 43678
13014 b 12080 b 11147 19910
56692 68772 79919 93829
108191 109753 117434
8362 15amp2 7681 5883 408~
5477 4403 3347 2103 7998
b 123317 127402 132873 137282 142629 144732 132730
00008 00071 00441 00623 ooao3 00913 00832 00791 00730 01304 00348 00102 00503 00383 00267 00339 00288 00350 00138 00524
Total Prop
00008 00079 00319 01142 0~1947
02860 03712 04503 05233 06336 o1oa1 07186 07amp89 08074 08312 08700 08989 09339 09176 10000
Daily Count
0 0 0 0 0 0
27 b 53 b 80
212 276
49 160 114b
68 103
44 132
23 189
Total Count
0 0 0 0 0 0
27 80
160 372 648 697 857 971
1039 11 2 1186 1318 1341 1530
Daily Prop
ooooo ooooo 00000 ooooo ooooo 00000 00176 00346 00323 01386 OUI04 00320 01046 00745 00 44 00673 00288 00863 00130 01233
Total Prop
00000 00000 00000 ooooo ooooo ooooo 00176 00523 01046 02431 04235 04356 05601 06346 06791 07464 07732 08614 08765 10000
Daily Count
0 0 7
36 72
1154 807 b
1460 b 2111 8615 7416 4250 149~6
11100 b 7243
14504 7282
11931 76~8
25013
Total Count
0 0 7
43 us 26l
1076 2536 4650
13265 20681 24931 39887 50987 58230 72734 80016 91947 39605
124618
Totalbull 167614 c 1530 d 124618 d
a Hourly tower coun~a and daily expanaion poundoraulaa ara preaented by apeciaa in Appendix Tablea 4-6
Dally Prop
00000 ooooo 00001 00003 00006 00012 00065 00117 00170 00691 00595 00341 01200 00891 00581 01164 00584 00957 00615 02007
Total Prop
00000 00000 00001 00003 00009 00022 00086 00204 00373 01064 01660 02001 03201 04091 04673 05837 06421 07378 07993 10000
b Dbullily count eatiaated by interpolation o~ counta poundor preceding and poundallowing day due to achadu~ed day opoundpound or incoaplete count data middot
c Cubullula~ive eacapaant count poundor the period 25 ~una through 14 July opound 152730 auaaar chua aalaon expanded to a total aeaaon estiMate opound 167614 poundiah baaed on hiatoric aonar count aacapaant tiaing patterna An average opound 888~ opound the total aeaaon aonar coun~ occurred after 14 July poundor the yaara 1981-1984 Counting waa terainated while aigniEicant poundiah paaaage wea atill occurring in 1986 due to poundundlng cute
d Cubullulative eacapeaant counta through J4 July opound 1530 chinook aalaon and 124618 pink aalaon could not be axpandad to total aeaaon aacapeaent eatiaatea due to the lack opound hiatoric daily eacapabullent tiaing data poundor theae apaciea Previoua aonar p~oJecta vera diractad at auaaer chua aelbullon end were terMinated while aignipoundicant nuMberbull opound chinook end pink ealbullon wera atill paaeing Tharapoundora cuMulative countbull through 14 ~uly poundor chinook and pink aelbullon era very conaervative aatiaataa of totel aeaaon eacapeaent due ~o aign1pound1cant peaaega epound~ar that date
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
Ju~y~ 1pound neeeaaary~ but eaergency budget reductions resulted in terbullination opound counting on 14 July Signipoundicant numbers opound fiah were atil~ being counted at that tiae
The peek expended daily aumaer chua salmon count opound 19910 fiah lt13~ opound aeeaon totalgt occurred on 4 July~ the peak dai~y chinook aa~aon count opound 276 poundiah lt18~ opound aeaaon total) occurred on 5 July~ while the peak daily pink aalmon count opound 25~013 poundiah lt20 opound aeaaon total) occurred on 14 July the ~eat day opound counting Bacapeaent tiaing appeared to be about average poundor suaaer chua aalbullon as coapared to the sonar counting data base poundor 1981-1984 ltFigure 14gt Mean date opound run passage waa 4 July with a standard deviation opound 476 daya The ca~culated bullean and standard deviation are apoundpoundected by preaature teraination opound the proJect
It is opound intereet to note that the low count opound 1562 auaaer chua salaon on 6 July bullay have been an epoundpoundect opound the coaaercial poundiahery in Districts 1 and 2 Approxiaate~y 54000 auaaar chubull aalaon were taken in 12 houra in District 1 on 2 July and an additional 30000 fiah were aubaequently taken in District 2 in 12 houra on 3-4 3uly Although atock composition opound theaa catches ia not known aignipoundicant contribution by the Andreapoundaky River atock would account poundor the ~ow eacapeaent count on 6 Ju~y
The cuDu~ative eacapebullent count for the period 25 June to 14 July opound 152730 aumaar chubull aalaon can be expanded to a total aeaaon escapement estimate baaed on historical eacapebullent timing pattarna An average opound aaa- opound the tota~ aeaaon sonar count occurred aster 14 July for the years 1981-1984 App~ying this expansion poundactor reau~ta in a tote~ season eacapeaent estimate opound 167614 auamer chubull aa~aon This waa the second largest aubullmer chubull aalaon escapaaent recorded poundor the Eaat Fork Andreapoundaky River since total populationmiddot eatiaataa have been obtained beginning in 1981~ and is 32~ greater than the 1981-1984 average sonar estimate opound 127349 fiah ltFigure 15gt
Cumulative chinook and pink aalaon escapement counts through 14 July could not be expanded to total season ebullcapeaent eatiaates due to the lack opound historic dai~y escapeaent tiaing data poundor these species Cuaulative proportion curves indicate that summer chua aalaon had the aar~ieet salmon eacapeaent timing at the tower site followed by chinook salmon and then pink aa~mon
ltFigure 16gt Therefore cuaulative counts poundor chinook and pink aa~aon through 14 3uly opound 1530 and 124618 poundiah respectively are incoaplete eacapeaant astiaatee
A 3urther error poundector poundor the chinook aalaon eatiaate is the re~atively low paaeage rate and low counting intensity opound the two peraon aehedu~e design Moat eounting towera are operated poundor 24 hours per dey with a 3 peraon crew By on~y counting poundor 15 ainutes out opound each opound 16 hours daily the occeaaional groups opound aigrating chinook aalaon were easily bulliaaed or overaatiaated by expansion poundactors The reau~t ia an erratic daily escapement pattern poundor chinook salmon and an overa~l estimate that is probably too ~ow Methoda poundor iaproving tower count estimates poundor
28
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
~
I 11
I
~ lllr liS bull
It-~ 1111111 bullJ =-~
--ZIC 0111 Is--
1981 EF ANDREAFSKY CHUM liMY~
50=788
~ ~ ll ll n
_
SD=697
1JC
~ 1411 lllr liS
I ItS -ts
I --IS Ill 1111
1982 EF ANDREAFSKY CHUM -v EEoVGIINr
SD=485
rJ
SD=582
1986 EF ANDREAFSKY CHUM DMY DCioPIIYINt
middot-~ tIJC SD=476
g middot-~ I 1111 IIIII -11
I ~
-~ - -IS
- le-1111 ~
Figure 14 East Fork AndreafskY River summer chum salmon sonar or tower counts by day 1981-1986 Mean date of run passage (calculated with Day 1 = 16 June) indicated by shaded bar and standard deviation (SO) of the mean is given
29
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
240 J 220 I 200 l 180 ~
160
140
120
100
80
60
40
20
1972 1974
[Z2] AERIAL SURVEY
1978 1980 1982 1984 1986
lzZ) SONAR ~TOWER
Figure 15 East Fork AndreafskY River summer chum salmon escapement as estimated by aerial survey 1972-1980 and 1985 by side scanning sonar 1981-1984 and by tower counts 1986
30
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
or I
0 8
z 07 J 0 u z 06 0
~ 05 j 1)
IJ 04 0
D 0 03 0 D
02
01
0 25-Jun 30-Jun 05-Jul 10-Jul
c CHUM ~ CHINOOK b PINK
Figure 16 Cumulative proportion of season total summer chum chinook and pink salmon tower counts by date at the East Fork AndreafskY River 1986
31
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
1987 are diacuaaed in the poundinal sect~on opound this ltConcluaiona and Recoaaendationa)
report
Distribution middot opound tower counta by hour indicates that moat opound the aelbullon paseage occurred poundrobull 0000 to 0400 and poundrobull 1400 to 2400 ltFigure 17gt Peak chinook aalaon hourly paaaage ratea occurred in the early aorning houra while chua end pink aalmon passage waa highest in the late apoundternoon and evening The initial counting aebedule opound two 6 hr ahipoundta per day waa aodipoundied to two a hr ahipoundta per day on S July in order to improve the accuracy opound the daily eacapeaent eatiaatea The 1600-2400 period waa counted each day since this waa poundound to be a period opound aubatantial salmon paaaage
An aerial survey was flown opound the Eeat and Weat Fork Andreapoundaky River under poundair conditions on 14 July Thia waa earlier than the optibullal aurvey timing opound 20 to 31 July but heavy rainpounda11 prohibited additional aurveya later in the spawning period A total opound 83931 chua aalaon and 1~954 chinook aalaon waa enuaerated above the tower site on the East Fork and 99373 chua aalbullon and 3158 chinook sa~aon on the entire West Fork The Eaa~ Fork chua salmon count was 50~ opound the total seaaon tower count ea~iaate opound 167~614 poundiah while the chinook salmon aerial survey count was 28~ greater than the incomplete tower count estimate opound 1530 poundiah
The chum and chinook salmon aerial survey eacapment obJectives were achieved poundor each poundork Thoae obJectives are 1100 to 1600 chinook salmon poundor the East Fork~ 700 to 1000 poundor the West Fork and 76000 to 109~000 auaaer chua salmon poundor the East Fork~
62000 to 116000 poundor the Weat Fork ltADFampG 1985) The East Fork chinook aalaon survey count was the largest since 1981 while the Weat Fork count was the largest ever recorded
Twenty-seven beach aeine aeta were bullade poundrom 27 3une to 15 July and a total opound 822 chum salmon 16 chinook salmon~ and 668 pink aalbullon waa captured ltAppendix Table 7gt Additional chinook salmon aabullplea were obtained by carcass survey opound both the East and West Fork in August
0pound the 822 chum salmon aebullpled for age-sex-aize data 775 lt94~gt later proved to have ageable scales Age composition was 61~ age 4 37~ aga 5 17~ age 6 and 03~ age 3 ltAppendix Table Sgt Females accounted poundor 5S~ opound the sample Age 4 accounted for the bulleJOrity opound aaaplea in 1982 1984 and 1985 while age 5 was predobullinant in 1981 and 1983 ltFigure 18) Age composition opound the Andreapoundaky River escapement sample in 1986 dipoundpound~red poundrobull that opound the cobullbullercial poundiahery catch and the Anvik River escapement in that age 5 waa in the aaJority poundor the latter two samples Sex composition wea similar poundor the two escapement aaaples
0pound the 350 chinook aalaon sampled poundor age-aex-aize data 275 lt79~gt later proved to have ageable acalea Age composition waa 2~ age 4 70~ ege 5~ 22~ age 6 and 6~ age 7 ltAppendix Table 9gt Febullalea accounted poundor 23~ opound the aample Ages 5 and 7 accounted-
32
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
02 019 018 017 016 015
1- 014 z gt 013 0 0 012
~ 011
~ 01
1L 009 0 008 D 007 0 0 006 D
005 004 003
- 002 001
0 1 3 5 7 9 11 13 15 17 19 21 23
HOUR OF DAY c CHUM ~ CHINOOK A PINK
Figure 17 Distribution of summer chum chinook and pink salmon tower counts by hour of the day for the East Fork Anreafsky River 1986
33
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
I t
I
AGE 3 AGE 4 Lt
Gllll 01
u
L7
Dlll
I u u
D-04 aas u
0112 D2
001 01
a D
2ZI -IIU IZZI IIIIMK - IIIU
AGE 5 AGE 6 01T-------------------------------
u IL1
u
u
04 I IU
oa
Ot
a tW tea 11U tiM middot- _
2ZJ PDIIU - IMIZ
Figure 18 Age and sex composition of East Fork Andreafsky River summer chum salmon 1981-1986 presented as proportion of total sample for each year by age class Note different scale for ages 3 and 6
34
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
poundor a relet~vely greeter proport~on opound the aample in 1986~ and agea 4 and 6 a relat~vely smaller proportion than poundor aoat years since sampling was initiat~d in 1981 ltFigure 19) Th~a ia similar to results poundor the cobullmerc~al poundisnery samples ltBuklia and Merritt In Prep) The poundemala component was in the lower end opound the range compared to previous years which is contrary to the coapoaition opound the Anvik River escapement sample in 1986 The large proportion opound age 5 malea in the aample as well aa the large proportion opound age 6 aelea relative to age 6 poundemales may in part be a reeult opound the crew actively searching backwater areas in the lower river poundor carcasses in addition to upriver spawning areas Many opound the melea which die opoundpound earlier than poundemelea and were carried poundar downriver in the high water conditions were poundound in the lower river The Anvik River crew which concentrated survey epoundpoundort only on the upriver spawning areas poundound poundewer aelea
CONCLUSIONS AND RECOMMENDATIONS
Escapebullent to the Anvik River was eamptimated by side-scann~ng
aonar to be 1189602 suaaer chum selman in 1986 wh~ch is 24 tiaea greatbullr than the sonar count escapement obJective opound 487000 poundish Escapement to the East Fork Andreapoundaky River was eat~mated by tower count to be 16614 aumaer chua sa~aon which ia 32~ greater then the 1981-1984 average sonar count Chinook aalaon escapement obJectives were achieved in both systems Pink aelaon were abundant in the Andreepoundsky River with an incomplete tower count in the East Fork opound 124618 poundish
There ia no atock identipoundicat1on data ava~lable poundor the Yukon River suaaer chua salMon poundiaheriea Stock apecipoundic run timing through these poundisher~ea is not known However ipound the Anvik River atock does aove through the lower river districts relative1y early it aey support only a moderate explo~tation rete during the large aeah chinook salaon season Conversely ipound the East Fork Andreapoundaky River stock enters the Yukon River relative1y late it aay auatain a significantly higher exploitation rate in the targeted chum ae1aon poundiahery The introduction opound special chua aalbullon fishing per~oda during the traditional chinook salmon aeaaon in the lower Yukon River in 1986 was an attempt to optilllize exploitation opound a strong early cOJRponent opound the summer ehubull salmon run Yet eacapament to the Anvik River in 1986 was atill twofold the obJective poundor the third conaecut~ve year and poundourth out opound the last six
aet Suabuller chua aelmon run tibulling at the lower Yukon River gillnet teat pound~shery ltmile 20) at the Yukon River sonar lt 1ki le 123l at the East Fork Andreepound sky River tower site 125gt and at the Anvik River sonar site ltaile 365) coapared to provide a qualitative eaaeaaent opound probable tiaing through the lower river poundiaheriea ltFigure 20gt G~ven
the bullean dates opound passage at each opound these poundour sites in
a~te
ltmile can be
stock that 1986
35
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
I
I
AGE 4 AGE 5
1-----------------------------------~ CUI
D4 I u
oa
01
0 _ _ _ _ IZZ_
AGE 6 AGE7 ampt ~
OJfl1
I IL04
ILIIII
oGII
oot
Figure 19 Age and sex composition of Andreafsky River chinook sa~on 1981-
1986 presented as proportion of total sample for each year by age class Note different scale for age 7
36
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
i I ~
I
i I amp
I
bull I 11
I
LOWER YUKON TEST FISH ~~----------------YU~KON~~~~~W=~~=SD=---------------~ 17W _ _ _
3~
50=755
~=j ~ ==i ~ ~ 3 ~Cit yO ___ -- --
Preliminary Data
50=661
Preliminary Data
~ I -
_ E F ANCREAFSKY RIVER ESCAPEMENT
50=476
__
ANVIK RIVER ESCAPEMENT r-_ ~_WILE-middot middotmiddot~
middot-~ 50=505
J _ _ _ tPf -= --=-- I1A j - I ---- a__ a- _
Figure 20 Run timing of Yukon River summer chum salmon in 1986 as indicated by catches sonar counts or tower counts at four sites Mean date of run passage is indicated by ~haded bar and standard deviation shy(SD) of the mean is given
37
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
~bullbull 20 June 24 June 4 Ju~y end 3 Ju~y respectively it is probable that the Anvik River stock entered the Yukon R1ver earlier then the Andreepoundaky River stock
Coaparing aean dotea opound paaaege end river m~lea between sites results in ealeulated awiaaing speeds opound 258 ailes per dey between the teat poundiahery and Yukon River sonar aite 265 miles per dey between the teat poundiahery end the Anvik River sonar site and only 75 aiea per day between the teat poundiahery and the East Fork Andreepoundaky River tower aite Dipoundpounderential awiaaing speeds and Milling behaviors by the two atocka are possible explanations but later entry by the Andreapoundsky River stock aeeaa bullorbull probable
The new method opound deploying aonar transducers on the Anvik River was epoundpoundective in 1986 The method should perpoundorm well even in very high water conditions ea were encountered in 1985 A aiailar set opound transducer deployMent aaaembliea ia available poundor uae on the East F~rk Andreepoundaky River ipound sonar ia used to en~erate salmon escapeMent in that stream in the poundutura
Tower count~ng proved to be a poundeasible method opound obtaining daily aelaon eacepeaent counta by species poundor the Eaat Fork Andreapoundaky River in 1986 Low water and good clarity contributed to the success opound the proJect It ia recoaaended that middotescapement to th~a ayatebull in 1987 be eatimated by tower counting with sonar equ~paent available in reserve in caae opound high water conditions Accuracy opound towar middoteounta could be improved by
lt1gt Count poundor 20 minutes out opound each hour and expand by a opound three as oppoaed to 15 ainuta counts and expansions poundactor opound poundour
poundactor by a
lt2gt Operate three 8 hr counting ahipoundta each dey uaing a three person crew ao that no daily expansion ia necessary poundor missing blocks opound tiae
(3l Ipound crew limitations distribution each apeciea
size is restricted to two persona due to poundunding optimize 8 hr counting ahipoundts baaed on the hourly
opound counts in 1986 and develop expansion poundactors poundor based on the 1986 results
38
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
LITERATURE CITED
Alaaka Dept opound Fiah and Gabullbullmiddot 1985 Yukon Area annual aanagbullaent report 1985 Coaaerciel Fiah Division Anchorage 143 pp
8uklia~ Lawrence S 1982 Anvik River auaaer chua aalaon atock biology Inpoundoraational Leapoundlet No 204 Alaska Dept opound Fish and Gaae~ 3uneau 50 pp
----------- 198~ Anvik and Andreapoundaky River aalaon atudiea 1985 Yukon Salaon Eacapeaent Report No 26 Alaaka Dept opound Fiamph and Gaaa Coaaercial Fiah Division Anchorage 47 pp
Buk~ia Lawrence s and Margaret F Merritt In Prep Age aex~
and aize opound Yukon River aalaon catch and eacapeaent 1986 Alaaka Dept opound Fiah and Gaae Technical Data Report 3uneau
Mundy PR 1982 CoMputation opound aigratory tiaing atatiatica poundor adult chinook aalbullon in the Yukon River Alaska and their relevance to poundiaheriea aanageaent North American Journal opound Fiahariea Manageaent 4359-370
39
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
Append~x Ta~lbull 1 Anv~k River aa~an beach ampedna catch by apeciea x and data 1986 bull
Chinook Pink
Nuber ---------------Dete 0pound Seta Kala F ~ Tots~ Male F-ala Total
--------- ----------------------------------- ----------------22-Jun 23-Jun 24-Jun 2S-Jun 26-lun 27-Jun 28-Jun 29-lun 30-Jun 01-Jul 02-Jul oa-Jul 04-Jul OS-JU 06-Jul 07-Ju~
08-Jul 09-Jul 10-Jul 11-Jul 12bullJul 13-Jul 14-Jul
1 2 1 1 ~
3
1 3 4 6
1 4 2
3
4
0 1 0 0
12 0
9 42
9 7
38 20 19
14
24
0 0 3 0
13 2
23 48 11 23
20 31 21
0 0 0 0 1 0 0 0 3 0 0 0 0 0 0 0
2S 0 0 0 2 0 0 0
32 90 20 30
sa S1 46
48
0 0 0 0
0 0 0
0
1
0
0 0 0 0
0 0 0
1
1
0
0 0 0 0
0 0 0
1
2
0
0 0 0 0 0 0
0 0 0 0
0 0 1
1
6
0 0 0 0 0 0
0 0 0 0
0 0 3
0
2
0 0 0 0 0 0
0 0 0 0
0 0 4
1
11
--------------~--------------------------------------------------------------46 301 S21 1 2 3 11 10 21
-----------------------------------------------------------------------------a All beach aaining waa conducted at a aite on the waat bank approxiaately 300
tara upatrbullbullbull poundrobull tbe aonar aite
40
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
U1 TAIIlbull 2 tp t- ~tic t Alwillll1wr _em~ webull middot~ IIIIPIIII 1972-19116 a
IUIEIB IF Fist
S1liiU SIIU Slllllf amp31 liampE3l amp31 Iamp 41 Iamp~~ Iamp 41 amp51 amp51 JIBE5l AampEil AliE61 AliE Sl YEIIR IRE fJIU 1IITil IRE FIJRpound nrra IU fEIRE 1Urll llllE FEJIU TII1IL IAE FEJILE TUfA
1172 157 1S3 320 0 0 6 2S ~ 62 131 115 253 4 1 I 1m 2e 118 713 u 11 41 20t 01 - 4t 7 121 1 1 il 1974 ~ 157 44e 12 2 s 17 110 317 M 12 46 2 1 J 1915 DO 314 - bull 17 21 213 281 541 13 a 0 0 0 176 281 3211 601 5 ~ 9 41 a 71 m 211 514 0 0 0 rm 191 J9l - 20 U1 w w DO 431 7 11 22 3 z 5 1m bull 2U 52 0 1 1 210 1110 390 7 It 161 0 0 0 tm m - m 2 JZ 14 ~ 13 Jlt7 115 95 214 z 2 4 19110 167 211 421 0 1 1 147 - 373 co l1 51 0 0 0
1981 l51 112 333 0 0 0 49 ri1 Uti 99 115 214 0 3 1112 117 2amp1 312 4 17 21 1S Ill 2S 11 amp5 1tt l 3 1983 183 38 a 0 4 bull 91 1-2 zu 83 90 173 1 2 3 19M 131 21 m 2 li I l17 189 - 19 zo as 0 0 0 1985 m 29t ~ 0 11 J1 172 225 m ~ s 117 2 0 2 I IIi ~ 811 ~ 0 2 2 ~ 89 141 14 IIi 325 J 4 7
PEIIIB1 IF lDTil SARE II
9lllE SIIILE SIIIU amp31 amp31 amp31 amp41 AilE amp-I Alii 51 amp51 AilE 51 amp61 ampit AliE61 YSII IIILE F8llpound 1U1Jl JAE IIRpound TIITi1 IIU FEJIU 1DTIL IRE FEIIU ~ Ill FEIIU TIITi1
1972 21 4781 lOOOOJ oooa OOCJ OOOl 71111 116S 18 43131 JS 79 1~ oru 1~
1m 384 661~ 100001 J bullbull -41311 6~ 26e 12111 T1m 6M 1009$ 16~ 01lll 0131- 0~
1974 00 J($ lOOOOS 299amp 191J ampIU WOOJ 29811 788 8461 em J144J OSOJ 0~ o~
1975 46S sm 1000011 06111 911l 3601 438 498 leMl l-231 1~ 3Tfl 0001 oOOJ ooos 191amp -1U szu lOOOOit oo otin h50J 71511 -12l 129111 JaTfl -~ 159 OOOl OOOl 000$ 1ltJ77 2431- amp7m 100001 3W 1LD 20M 7D 45MI 7311f 1191l 2S 374J OSlll OJtJ os= 1971 28 4764ll lOOOOit OOOl 018S 011 JB(Mj J21UJ 70651 1431~ ~~- am OOOJ 0005 oOOJ 157 471~ 2D IOOOOJ OB zon 242l 5601 33~ 5993J 19861 17101amp agu Olbt Ol5ll 069S ISIO l9~ ampQm 100005 OOOJ 02tl om J6l59J S3111 171amp1 -471ll 729f 1200J OOOJ OOOl oOOJ
middot~ SB 546511 1000011 OOOl 0lt OOOJ 1~7~ 2015 34ampU a 7ll ~9 64~ 0~ 00011 0901
1912 J)OJC 693n 10000$ IOS 44S iIM 19~ 4738ll fl70211 9i9S 17QilL 25701 0261 021 07131 I tal 434711 SD 100lt 00011 095lt 095lamp 2l5S 33 7Jll 57~s 1 71ll 218 lOJlL OM 04811 07ll 1914 390$ 6091ll 10000J om tm 2m ll4J 53~ 86amp91 18 Si~ llOS OOOl OOOJ 000$ 1915 21~ 55-m lOOOOJ OODJ ZOIJ 2lt 3264llo 426~ 75~ 11201amp 110~ 222M OJilt 0001 0311 1986 421 1782J 10000t ooos o4a OmiddotUJ 121-U ILJlll 30-$ 29~ 1m DT OSJ oaet JW
i SUpliS collehlf b) carcass~ 1572-1981 by~ IMM 1~1- aNI liy 11ot11 ~ ~ ia 13112 I SUlt ~llft nclt IRijttd 111 u pried at ~t CDUIts
41
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
~h Tlblbull 3 llgbull illd- tuon of ~tk llhw cfllftODII ~l10t1 n~aptEllt bull 1971-19116 1
NNEliS IF Fllit
SAIIU IIIIIPU liAIIU AliE
AliE lliE4 lliampll AliES AilE II IEE6 Aileamp AampU amp1 AIIE7 1amp7 Sf~ 1111pound IBilpound TOTAL RE fpoundIIILf TOT A IRE IUU llJJil IRpound fEIIU TOT II IRE FEJIIU TOT II
------------1912 10 II JS 0 0 0 I 0 I l II 7 0 0 0 1913 bull 10 1 0 I 0 0 0 5 3 I 0 I I 1174 Nil liiiNUS CCLIpoundCIEI 1175 6 t I I 0 1 4 I 5 I I 2 0 0 0 1911i J3 12 4S 0 6 15 s JO I 1 9 0 0 0 Jm all 59 117 e I 3 21 bull 33 17 41 111 r 4 6 1911 Jl 41 71 11 0 I I 10 I II IJ II 5I 0 I I 1919 37 9 46 17 0 l1 14 0 n 6 II 0 3 3 1980 41 42 13 19 I 81 21 II ~ I 17 0 J 3 I Nil 109 I It KJ 33 I Jt Iii l6 Ill Jl5 131 0 I I INif 100 H ua 47 I 41 47 II 5I 6 31 31 0 0 0 I liB J7J Ill 306 511 0 5 M 15 110 J3 lot U1 0 J J 19114 lEt In 276 n bull 33 101 10 Ill 211 74 11 0 6 1181 e5 I 33 10 0 10 10 3 Jl 5 5 10 0 0 0 19116 113 19 loti 0 I I 44 27 71 6 41 54 3 13 16
-- --------- 1)
PERCENT IF liiYil iAIU e
SIMILE lliiiiU lllltiPIE 1amp4 -middot 1amp4 1amp5 1amp11 amp5 llllEii Alpound6 1amp7 amp1 lliE 7 YEAR IIU fEIRE mil IIILE FEIIU TIJJil IIILE JniLE lOT II IRI fniE TOT II IRE FBIU TOT II
-------------191t -No J3331l IOOOOl 0001 00011 ooo a~ 00011 533311 IJJJl 33D t667J 00011 0001 OOOJ bullm IOOOJ 400011 IOOOOit IOOOS OOOl IOOOS 00011 00011 000$ SO (lOS JOOOS IIGOOS 00011 lfiOOII IOOOS 111 EIHU8 raucra Jm 1110011 es0011 1000011 12~ ooos 12 bullbull SOOOll 12~ 621011 125011 125011 aoos 0001 00011 ooos 1976 n~ 166 1000011 IJJlll oOOJ ru~ ~5611 1111~ 6667J 44~ Ill~ ZOOOJ 000$ OOOJ 000$ liD 1171- so~bull 1000(11 171 0~ 255$ 2llt Ma 2821 tl~
middotmiddotmiddot~ 641~ 171 3~ Sllll
1971 4L~ 53~ 10000$ 16BU ooos rue 12991 1~ 14291 168a 506M u~ 0001 1 bullbull ltoJ 1979 104~ 1157~ 10000 J6~ 000$ 36~ 3(14311 OOOl JO 4311 130411 JJ~ ~~ 00011 6~ 65211 1180 w ~w 1(000 2891C UOJ ttJOJ 1153011 2651~ 511111 1211 19eel 0 0~ Jllll Ulll I till UH~ 58511 IOOOiilt 125M OJIIll 12m 319lt 136911 4fim 57011 441111 491111 oOiilt OJilt OJilt 1182 746J t75411 JOOOiilt ~06$ 07H 3UI 34oampJ Jre 376811 tJlllt tl191C 75411 0001 0~ OOOJ 1-93 $541 U40ll IOOOiilt 18~ 00(11 18~ 274ill B SOli 3595J J0781t 339 44771- 00011 098ll 09b IW 51l10J um 1(0001 105111 IW u 961 391~ toan SlOOJ 9~ 261111 Zlan ooo LINo lln J9EI5 157lC 24211~ JOOOOll 30~ e~ 3(1~ 30~ 9~ Jm 151ill JSIIll JO~ 00011 OOOIC ~OOlt
1916 ~-3~ 626H 1~110 OOM 0701 070$ l099S 1901~ ~oot ~ )3~ lll~ 21111 915J um ------~--------------
______________ _____ 1 Suphll ollectld by ~Iii IUNII)Itadl Ylllr bullUh 1 VffY fell filii ll10 hkell by bad uilll cr book INI lilll iii 11011e )lllll
b IrlClllllel Wlf IRE J N)l
1 luplt ercerbgn not 111i llhltd ~ tiw pRiod or tiibullPIIillllbull ro1mh
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
ApPirldh Tablbull 4 Eaampt FDtk Arldruf1ky tliwr s- rhta AID t~ coun1 1yen bour llld dab 1986 11Uh count nUbulltion fcn~tlllll dllrivld frw thetie dlt1 for bullieing Ubull blocks
EXRIGJEII llllRY auT 141 lCRII 15 IIIIIRE COJIT) Rll IOit BtiiNih MTE lOCI 200 riO ~ 500 600 ]GO 800 900 1000 UOD 1200 IJOO 1400 1500 1600 1100 1800 1900 lOOO 1100 2200 2300 2400 TOTJI
25-JUII 16 0 20 4 bull 0 0 0 -12 4 4 411 88 26-J~m 0 0 0 0 0 24 0 116 172 ll2 632 21-JIJII 40 41 36 0 eo 376 648 12- m Joeo U6 3968 21-Jun 164 164 80 se 1lO 16 6S6 1216 196 1161 732 5 6020 29-JUII 116 36 16 t6 0 16 1976 3284 3M 216 676 500 7~16
JO-Jun s 84 41 $ 12 I 1860 3340 1016 472 EO JSe ~uo 01-Jul 0 GI-Jul 1~ 175 152 16 21 II 20 12 340 161 Itt 304 1476 03-Jul 16 3fi I 20 8 M 41 36 188 tl76 3216 2010 11752 184 460 10544 04-Jul 81 ~061 2amp l 75 1700 78 3016 I JOt 284 304 124 376 11576 05-Jul el6 320 120 36 32 to 24 28 436 356 14411 1~6 JOM 11 eoa 75iO 06-Jul 12 8 12 16 bull 4 se 72 16 0 8 296 300 288 132 111 135 07-Jul 24 116 56 liO 28 28 548 108 92 80 56 120 3080 1784 456 25i 6932 08-Jil 0
-= 09-Jul 16 16 a 20 DO 28 40 40 152 ampa 260 640 1516 208 e20 188 3500
w Jo-Jul ua 1811 128 bull 16 296 220 12 uto JJ2 512 936 1084 168 4996 11-JuJ 110 88 20 0 12 40 14 40 88 176 J2 288 eoa IJOO 1556 3 716 12-Jul JOB 616 60 B8 4 8 28 12 720 50 356 364 612 568 2 272 48110 13-Jul 24 12 32 a 3i J6 80 eJe m s JJ2 84 14 116 160 232 1852 14-Jul 12 92 88 96 12 96 2 56 110 - 5S 1016 125amp I lt 548 4M 11 1M ----IDTIIL 981 115M w 444 10 260 1380 916 332 i5i 132 li 2M 3276 2964 433amp 4596 5740 14420 17876 11910 9t412 7244 6836 98 7U ----- ----------- -----------
Ttbull blacllbull liN dtfl IS follcHIII 1 bull ~ 2 0600-leoG J bull 100-1800 4a 11100-2400 A bull oooo-oD B bull 01100--1600 C bull 1600-2400
EstluUon faraha for bulllullll Ubull bloclls 8ftd tM toullt dati uud te dlttn~ibull tllne fendbull 1n1 as foliOIISI
EKplnliGn Forull Deb lklurct For RllltJonsldll ktlllfln TiM lltal ---Blok 1bull18liCk 408948Hilotk 4) 703 705 1101 710 7112 714 Blodl 2-IBioctc 410 9e73HBiock 4) 61~ 626 6U 6b 629 6JD Bleck J-18lotk 4062211-CBlack 4) 1103 1J04 706 709 711 713
Blotk A-IBlcck C08476HB1ock Cl 705 707 710 712 714 Bleck D-18liCk CI08871HBlock Cl 706 1109 1111 7IJ
---------------- ------
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
Rppendibull Table 5 East fc-k Atdreafslly RiVII chinook amp111011 totlll countbull by hOllY ITCI dati 1986 lrith count etiation fcnulbull derlvld fiOII these data for bullining hbull blocks
DNINIEIIIIIRY IDJIT 141 IICltR 15 IUIAJTE DUIJI Fill IIIII ENIJIG1 MlE 100 200 ~ 400 500 600 700 100 900 1000 uoo 1200 IJOO 1400 1500 1600 1700 11100 1900 2000 2100 2200 2300 2400 TOT~
-------25--Jull 0 0 0 0 0 0 0 0 0 0 0 0 0 16-Jon 0 0 0 0 0 0 0 0 0 0 0 0 (I
Zf-Jun 0 0 0 0 0 0 0 0 0 0 0 0 0 2amp-JIIII 0 0 0 0 0 0 0 0 0 0 0 0 0 29-Jun 0 0 0 0 0 0 (I 0 0 0 0 0 0 JO-JIDI 0 0 0 0 0 -4 0 0 0 0 0 0 -4
01-Jul 0 02-Jul 0 0 0 0 0 0 0 0 0 4 0 8 12 03-Jul 0 0 0 4 0 0 4 I U 12 0 32 0 0 4 0 0 4 10 ~-Jul 4 40 20 24 0 20 20 0 0 0 8 180 ~Jul 0 I 24 IIi 4 4 0 20 pound8 12 12 M 28 1~ 12 241 G6-Jul 0 0 0 0 4 0 0 a 0 0 0 II a a 0 0 J6 07-Jul 0 0 8 bullbull 4 4 0 I 0 0 0 0 21 24 16 12 U8 08-Jul 0 og Jul 0 0 0 0 0 0 0 0 4 0 4 a 8 8 I bullbull
~ 10-Jul 4 8 0 4 0 4 0 0 I 8 0 0 4 32 16 4 ~ ~ U-Jul 0 0 0 0 0 0 0 0 0 4 4 (I 0 (I 8 12 28
12-Jul Jli 36 12 II 0 0 0 0 11 I 8 4 0 I 8 bull 124 13-Jul 0 0 0 0 0 0 0 bull 4 4 0 0 0 0 4 0 16 14-JIIl 0 4 J2 24 0 0 0 0 lli 8 12 12 24 12 24 4 1n --TO TIL 20 56 76 100 bull U 4 I 0 0 0 -middot 12 48 56 41 II 100 60 60 140 120 middot-96 68 1176
----------Tibull bloclls In d1fillld H fDliOMSI 1 bull 01)00-(1600 2 bull 0601H200 3 bull 1200-1800 4- 1800-2400
A bull lt1000-01100 8 bull 0100-1500 C bull 1600-2-00
EsUbullati~~r~ fwhs flaquo eluing U1e blDdtt and the count d1tl bull to dBhe theu f11r1111hs ere es folllaquoampl
EllpaNiion fcnyla ha Sourct For RtlatiONihip lltamplftln Tibull llocks
Jl~k IbullCJ)d 40~HBJalt 41 7103 1105 1101 710 712 714 Bl~ 1- haufficlllllt Count Dab 6115 6iG 6C 61211 629 6lG Blotk 3a Cllock 40 38951-llocll 41 703 11~ 1106 709 7JJ 7JJ
Block A-CB1Cpoundk CIOr429HBhllk Cl 1105 707 710 712 714 BlCJCk Balllock CI08710HBJcck Cgt 1106 709 711 713
------- ----- -------middot-------------middot-------middot--------------------------------------------------------
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
llppllllh Tiblbull amp East fork hhtlhky River piftk lilllft tOMer ~untmiddot ~ hour n date 1986 ltitll count ntillltion fDIIIU)II derived frort theampa data for ldsting tiJII blockamp
EXIMlED ltllliiY IWIT 141 IDlR 15 IIIIIJJE mlfTI FOR 101 poundNDING1 DllE 100 200 JOO 400 KJO 600 100 800 900 1000 1100 1200 1300 1400 I~ 1600 1700 1800 1900 zooo 1100 2200 lJOO 2400 TOT fl --- ---- --------middot-----25-Jm 0 0 0 0 0 0 0 0 0 0 0 0 0 26-JMn 0 0 0 0 0 0 0 0 0 0 0 0 0 zt-Jm 0 0 0 0 0 0 0 0 0 I 0 4 Hun bull 0 0 4 4 0 0 4
0
0 28 29-JUft 0 a 0 0 0 0 20 20 0 0 0 0 48 JO-Jun 4 0 4 0 4 0 32 24 0 8 40 16 132 OJ-JIII 0 02-Jill bull ~ l2 0 0 0 0 0 bull 0 0 12 M 03-Jul 16 32 32 bull 10 4 0 12 40 21 N 244 216 156 0 316 JJ2 1860 ~-lul 200 912 Joot B 1112 436 744 5 160 200 Jl6 amp28 7588 ~Jul 264 m 114 168 0 20 0 aa 420 29i 516 661 1121 996 36- 616 6260 06-Jul 0 bull 72 16 72 140 100 0 24 411 760 988 3111 500 3w656 01-Jul 60 244 Iii 56 36 12 710 411i 140 120 24 188 4072 lt9l2 1496 852 12536 (8-Jul 0 09-Jul Jli 28 Jli 204 212 G6 110 88 208 664 2036 ~ 800 668 6223
~ 10-JIIl S44 4 216 192 20 48 440 420 876 540 880 1114 1960 2536 1584 351 122M
01 li-JuJ 414 200 20B 15 52 116 100 92 II 144 296 336 sao W) 1452 1548 6352 12-Jill 708 12 II bull 12 IS 236 1141 921 1M 424 1876 1391 612 744 J01 1M 13-M 10 54 Jl 152 uo 180
~middot 640 520 9e4 m amp28 504 iO 592 604 li760
14-Jul 300 400 1~ I C 104 Ull 532 - 1616 1596 1652 illiO lampM 3160 2244 1908 20824
lOT Ill 1900 2 7amp0 628 116 384 1920 1560 660 312 360 est 692 1456 1664 1111111 62a 5421 6040 79M 17000 15996 102(8 lt741 9808 ------------
n blocllbull deflnlll bullbull f111l1011SJ 1 bull OOOIHI600 2 bull CI6Craquo-1200 3 bull teoo-taoo - 1800-2400 A bull ODCJOoaoo I bull oecJ600 C bull 1600--2400
Est Illation flaquon~llll fill lti5111 Ubull blocll1 ud tht JOUIIl lfah used h dtttrhle thtit f~n~~ha IS follCMI
Exp~mlon f~lbull lllt1 ~ fOI bletiCIMbJp tftllltti TJMI llockl
BIClrk lbullCiladi 4108791H8ladl 4) 7103 7105 707 710 712 71 Block e-fBiotk 4108302H8lodl 41 6il U25 lilrT 628 629 IillO BJClrk Joa IJl Gdl 4111 Y481-f8lock 4) 70l 7J04 706 7109 711 713
Block fllock CJOBWI-C8lodl C) 705 707 710 712 714 man lltadl CI08170HBlock c 706 7109 7111 713
----------------------------------
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
Appendix Table East Fork AndrZsky R~ver lbullon beach ee1nbull catch by apec1bullbullmiddot sex and date 19864 a
Chua
Nuab~ -------------4040----Date 0pound set Male F ~ Totel
--------------------------------27-Jun 2 23 28-JUQ 1 20 29-Jun 2 ~
30-Jun 3 19 01-J~ 2 17 02-Jul 1 40 03-Jul 1 47 04-Jul 4 36 OS-Jul 2 14 06-lul 07-Jul 1 33 08-Jul 09-Jul 1 21 10-Jul 2 16 11-Jul 1 22 12-Jul 13-Jul 1 17 14-Jul 1 11 15-Jul 2 14
20 23 27 12 24 22 33 26 34
41
30 21 39
54 20 21
43 43 52 31 41 62 80 62 48
74
51 37 61
71 31 z
2
2
s 3
Chinook
1
0
0 3
Pink
Tot~
middot------------------------
3
2
s 6
1
2 5
7 31 12
17
57 29 41
138 34 31
0 1
0 2 2 7
12 39 8 39 9 21
6 23
19 76 12 41 19 60
96 234 33 67 27 58
TotI-~---r ~~-----------------middot--~-----~--~----------822 12 4 16 425 243 668
----------------------------- --------------------------------------------a s Ch ining was conducted at a site located appraxiaately l8 bullilbull below
tbe tower ampita4 Not included in thbull catch totela are 59 chua aalan middot that bullacaped poundro- thbull aaine or holding pan
46
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
~h Tabla e lgt llld 11M apa~iUon of Ellt fcri lhirHflky ltiYir su chilli Plm nnpillllftt supleampw 1981-1986 a
NMJiB OF Fl91
IMU IAIPtE IMU amp31 1amp31 A6E31 amp 41 amp 41 11BE 41 AIpound5J All 51 AGE 51 AGE61 1yenpound 61 Alipound 61 YEJIR IIU FEMALE lOTIL IIU fpound111pound TOT A IIU fEtRE TOT A IWE fEIRE TOT II IIAlE FEllipound TOT A
J91U 170 111 J51 2 3 s ~ 108 166 106 69 I IS 4 J 5 1982 161 295 416 2 9 Jl 108 224 332 46 60 106 5 2 7 1183 J66 461 134 3 I 4 114 middotIU 271 243 298 141 6 5 11 1984 222 229 451 7 u 11 149 165 314 6J 47 110 6 9 1985 m 329 566 3 I u 112 235 407 Iii 86 147 1 0 I J986 N 429 715 0 2 2 lOO V2 472 140 148 281 6 7 IJ
~ ----- -- ------------------
JIERCSfT 0 TDTA SMpound II
SIIIU IIUIU SAIPLE famp 31 AIpound 31 AilE 31 AlE 41 AilE 41 All41 amp51 AIpound 51 Iamp 51 Alpound61 All 61 A(pound 61 row ME fBRE TOTIL Rpound FailE TOT fl JlfU FEJRpound TOT A tiU FEJRE TOT II IRE FaRE TDTil
---- - _ __ ---------~---
middot1981 484~ 51~ 100~ 057lamp 0~
middotmiddot~ 16~ JOm 47JM 3020ll 19~ 49~ 114~ om I 42lamp
1982 3531lamp 646~ 100 o- am e41a l36b 4912lamp 121JS IOIm 131~ 23~ 11~ ot 114 1983 438 561~ 100~ o~ 01~ obull 136~ 19 lJ~ 2914lamp 357~ 64J11 072Jamp o~ 1~
1984 4922 50 711amp 100 bullbullbull 2441amp lm l304lamp 365~ u~ 1397l 100 24m o6n 1~ e~
198S 4117~ 581~ IOOcm 0~ ~ middotmiddot JOm 412 7191S 10 7IJI 151~ esm OJtr 0~ OJ~
1986 446SJ 55~ 100~ o~ o~ 026l 2581S 351~ 60~ 1806 1910 3716S 0711 Om 16~
a Salpln colJectld by CIIUB aurwy in 19811 by blach Hllll In 1913 ard 1986 and by both -thodl cceblrwd in 1982 19841 and 1985 b Buplt pmtmtagtS not wi~ttd )JI Ubull )llliod r eampCapllllflt COUIts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
AJpendh llbll 9 llgt ad 15111 ~ilion of llndrNfsky Rivtl minook Hlon lsct~ s-pln1 1181-1986 a
fDIIERB [F FJtlf
SlfiFU SAMIU BAIIPlpound ASE middot4 1amp4 fa 4 ampI AllES AllES IE 6 Arpound6 ASpound6 AGE 7 Alipound 7 lfiE 7 YEAR MLE FDIIU TOTrt IIU Fpound111Lpound TOT II IIU FEIIU TOT II Illpound FEIIU TO Til tRE FEIRE TOT II
----------------------- -----------------1961 154 143 m 29 0 29 80 22 101 s 120 161 0 1 1982 U6 49 J2S 110 b 10 110 tu 8 159 13 27 40 I 4 6 1983 251 104 355 54 0 1M 129 7 136 68 96 I 0 I 1 1984 Y)7 112 419 5tt 0 ~ 194 15 209 57 92 149 2 5 7 1985 296 147 44l 175 0 171 ~ 2 57 M uo 194 2 15 17 19B6 2U 275 5 1 161 24 192 ~ 26 60 bull u 17
------------------------------------ --------------------~ 00
~RCEJIT (f lOJII MILE II
SAMPLE WIU BIIIU Rlpound4 AIpound Apound 4 1amp5 -~
IWpound5 Rlpound li A6E ampli AliE 7 1amp7 fa 7 4111 RE FBRE TOT II IRE FEIRE TOT II lApound FEIRpound TOT II Milpound FEMIU TOfjL Illpound FEMIU TOT II
------------------- ------------------~---middot-middot--------------------------- ----------------------------198J M~ 48153 100 J 761 0~ 976 26~ 7 bullbullbullbull 3434 111~ 40-4lt$ 55~ 0~ 034 034 1982 am J508j IOOCIO l3851 O l3BS 4646S e bull w bullbullbull 400J 831llo 121l o~ 1e 11~
1983 107fll 29~ 100~ 15~middotmiddot 000 15 21 J63w 1m JIJJ 1915 2704 4620j 0001 om 08 1984 nm 2673 IOOOOl 1289l OOfll 12~ 46-W 35~
13~ 2196l 5561 04S 119l ar1n 19115 c68~ 331_ JOOOO 39501t 0~ 39501t J24~ 0~ 121n 144 29at um 04 Jm 384~
1911poundt lfl7~ eJm too em lB o~ 2 bullbull 09J 8 71 69821 12a6S 94S 21~ 14~ 47a 618J
------------------------------------------------- middot-----------------1 Sillpln LOlliiRid by arua turvey of thl Eul Fork and Utsl FOrte nth ytll1 1tith bulldiUUDNl IUIIllH coliKtiCI by
tach stilll frc the Eut forll fOt tile yws 1182 tbroulh 1986 b Ire hdts 7 bullII 3 1ales c lrcludes J agamp 3 1111le d Salflllt parciJitagn not t~~ijlted by Ubull pari~ or as~~ counts
