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Investigate Re- Investigate Re- establishing establishing Anadromous Fish Anadromous Fish Populations Above Man- Populations Above Man- made Barriers made Barriers Oregon Department of Fish Oregon Department of Fish and Wildlife and Wildlife Willamette Basin

Investigate Re-establishing Anadromous Fish Populations Above Man-made Barriers Oregon Department of Fish and Wildlife Willamette Basin

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Page 1: Investigate Re-establishing Anadromous Fish Populations Above Man-made Barriers Oregon Department of Fish and Wildlife Willamette Basin

Investigate Re-establishing Investigate Re-establishing Anadromous Fish Anadromous Fish

Populations Above Man-Populations Above Man-made Barriersmade Barriers

Oregon Department of Fish Oregon Department of Fish and Wildlifeand Wildlife

Willamette Basin

Page 2: Investigate Re-establishing Anadromous Fish Populations Above Man-made Barriers Oregon Department of Fish and Wildlife Willamette Basin

Barriers in the Willamette BasinBarriers in the Willamette Basin

Detroit Dam - North SantiamFoster Dam - South Santiam

Cougar Dam - McKenzie Dexter Dam - MF Willamette

Page 3: Investigate Re-establishing Anadromous Fish Populations Above Man-made Barriers Oregon Department of Fish and Wildlife Willamette Basin

Dam Impacts on Anadromous Dam Impacts on Anadromous FishFish

Santiam: loss of production above Santiam: loss of production above Detroit Dam (71%)Detroit Dam (71%)

MF Willamette: 80% habitat MF Willamette: 80% habitat blockedblocked

McKenzie: loss of productive McKenzie: loss of productive habitat above Cougar Dam (25 habitat above Cougar Dam (25 miles)miles)

Page 4: Investigate Re-establishing Anadromous Fish Populations Above Man-made Barriers Oregon Department of Fish and Wildlife Willamette Basin

Project GoalProject Goal

Investigate, experimentally stock, Investigate, experimentally stock, monitor, and evaluate the re-monitor, and evaluate the re-establishment of spring chinook establishment of spring chinook and winter steelhead above man-and winter steelhead above man-made dams in the Willamette made dams in the Willamette Basin without current fish passage Basin without current fish passage or with passage that impedes fish or with passage that impedes fish production.production.

Page 5: Investigate Re-establishing Anadromous Fish Populations Above Man-made Barriers Oregon Department of Fish and Wildlife Willamette Basin

Project ObjectivesProject Objectives

Quantify habitatQuantify habitat– Select sitesSelect sites

Plan prioritiesPlan priorities CoordinateCoordinate

– AgenciesAgencies– Permitting + NEPAPermitting + NEPA

Trap and HaulTrap and Haul– Adults Adults – Juveniles (hatchery)Juveniles (hatchery)

Page 6: Investigate Re-establishing Anadromous Fish Populations Above Man-made Barriers Oregon Department of Fish and Wildlife Willamette Basin

Project ObjectivesProject Objectives

Monitor recruitmentMonitor recruitment– snorkel surveyssnorkel surveys– spawning surveysspawning surveys

Migrant trappingMigrant trapping– screw trapsscrew traps

EstimatesEstimates– survivalsurvival– passagepassage– abundanceabundance

Page 7: Investigate Re-establishing Anadromous Fish Populations Above Man-made Barriers Oregon Department of Fish and Wildlife Willamette Basin

Anticipated ResultsAnticipated Results

Restore listed stocks above barriersRestore listed stocks above barriers Enhance overall natural production Enhance overall natural production Link populationsLink populations Provide forage for Bull TroutProvide forage for Bull Trout Enhance fisheriesEnhance fisheries Obtain survival information at damsObtain survival information at dams Provide nutrient enrichmentProvide nutrient enrichment

Page 8: Investigate Re-establishing Anadromous Fish Populations Above Man-made Barriers Oregon Department of Fish and Wildlife Willamette Basin

Rationale and Significance Rationale and Significance to Regional Programsto Regional Programs

Willamette Hatchery BiOpWillamette Hatchery BiOp Willamette Basin Operational Plan Willamette Basin Operational Plan

(The Oregon Plan) (The Oregon Plan) NMFS BiOp NMFS BiOp ODFW - OAR 635-500, WFMP ODFW - OAR 635-500, WFMP Subbasin SummarySubbasin Summary

Page 9: Investigate Re-establishing Anadromous Fish Populations Above Man-made Barriers Oregon Department of Fish and Wildlife Willamette Basin

Project RelationshipsProject Relationships

Bull T routPopulation +

HabitatSurveys (BPA)

Cougar W aterTem perature

Control Project(CORPS)

W illam etteBasin Habitat

M itigation(BPA)

Re-establishAnadrom ousFish above

Barriers

Page 10: Investigate Re-establishing Anadromous Fish Populations Above Man-made Barriers Oregon Department of Fish and Wildlife Willamette Basin

Willamette Basin Reservoirs - Willamette Basin Reservoirs - Current Chinook ReleasesCurrent Chinook Releases McKenzie BasinMcKenzie Basin

• Cougar (J+A)Cougar (J+A) North SantiamNorth Santiam

• Detroit (J+A)Detroit (J+A)• Big Cliff (J+A)Big Cliff (J+A)

South SantiamSouth Santiam• Foster (A)Foster (A)

MF WillametteMF Willamette• Fall Creek (J+A)Fall Creek (J+A)• Dexter (J+A)Dexter (J+A)• Lookout Point (J+A)Lookout Point (J+A)• Hills Creek (J+A)Hills Creek (J+A)

Page 11: Investigate Re-establishing Anadromous Fish Populations Above Man-made Barriers Oregon Department of Fish and Wildlife Willamette Basin

Hatchery Adult ReleasesHatchery Adult ReleasesFoster ReservoirFoster Reservoir (South Santiam)(South Santiam)

Year Male Female Jack Total

1996 121 98 5 224

1997 230 170 31 431

1998 374 318 7 699

1999 287 227 3 517

2000 367 237 7 611

2001 669 279 32 980

No current monitoring of juvenile migrants

Page 12: Investigate Re-establishing Anadromous Fish Populations Above Man-made Barriers Oregon Department of Fish and Wildlife Willamette Basin

Detroit Reservoir and DamDetroit Reservoir and Dam (North Santiam)(North Santiam)

Juveniles released Juveniles released in summer 2000in summer 2000

Adults released in Adults released in fall 2000fall 2000

Snorkel SurveysSnorkel Surveys• Breitenbush River:Breitenbush River:

97 fish/mile97 fish/mile• North Santiam North Santiam

River:River:

466 fish/mile466 fish/mile

0

100

200

300

400

500

600

trap

ped

dea

d

mar

ked

un

mar

ked

Screw Trap Results

Substantial number of naturally-produced smolts exited the reservoir

2001

Page 13: Investigate Re-establishing Anadromous Fish Populations Above Man-made Barriers Oregon Department of Fish and Wildlife Willamette Basin

Cougar DamCougar Dam (McKenzie River)(McKenzie River)

Migrant Monitoring (1998 - Migrant Monitoring (1998 - 2000)2000)

Adult releases from Adult releases from 1993 - 20011993 - 2001

Juvenile passage Juvenile passage during winter during winter drawdowndrawdown

Turbine mortalityTurbine mortality– 7.1 - 18.1%7.1 - 18.1%

Regulating outlet Regulating outlet mortalitymortality– 32.3%32.3%

02,000

4,0006,0008,000

10,00012,000

14,000

Turb

ines

Reg

Outl

et

1998-19991999-2000

Page 14: Investigate Re-establishing Anadromous Fish Populations Above Man-made Barriers Oregon Department of Fish and Wildlife Willamette Basin

Potential Release SitesPotential Release Sites

South SantiamSouth Santiam– Green PeterGreen Peter

Coast Fork WillametteCoast Fork Willamette– DorenaDorena– Cottage GroveCottage Grove

McKenzieMcKenzie– Blue RiverBlue River

Green Peter

Page 15: Investigate Re-establishing Anadromous Fish Populations Above Man-made Barriers Oregon Department of Fish and Wildlife Willamette Basin

ConclusionsConclusionsRe-establish Anadromous Fish Above Man-made Re-establish Anadromous Fish Above Man-made

BarriersBarriers

High fish management priority to High fish management priority to restore natural production above restore natural production above damsdams

Long term solutionLong term solution Success possible in short termSuccess possible in short term Rectify fish passage problems at damsRectify fish passage problems at dams Need commitment of agencies, Need commitment of agencies,

financial resources, and timefinancial resources, and time