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Swedish Board of Fisheries. Swedish Board of fisheries structure. WHY KARLSKRONA?. Institute of Marine Research was founded 1991 after Government decision: Importance of Baltic are for Swedish Fishery (90% av fishingzone and 70% of the catch comes from the Baltic). - PowerPoint PPT Presentation
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Havsfiskelaboratoriet, Karlskrona
Swedish Board of Fisheries
Swedish Board of Fisheries
Havsfiskelaboratoriet, Karlskrona
Swedish Board of fisheries structureSwedish Board of fisheries structure
Havsfiskelaboratoriet, Karlskrona
WHY KARLSKRONA?WHY KARLSKRONA?
Institute of Marine Research was founded 1991 after Government decision:
Importance of Baltic are for Swedish Fishery (90% av fishingzone and 70% of the catch comes from the Baltic)
Havsfiskelaboratoriet, Karlskrona
Council Regulation (EC) No 199/2008
Commission Regulation (EC) 665/2008
Council Regulation (EC) No 199/2008
Commission Regulation (EC) 665/2008
EU Data Collection Regulation (DCR)
EU Data Collection Regulation (DCR)
Havsfiskelaboratoriet, Karlskrona
Pelagic (trawl/seine) e.g. herring/sprat, mackerel, blue whiting, sandeel, vendace
Demersal (trawl) e.g. gadoids, witch flounder, shrimp, Norway lobster
Passive gear (gillnets, fyke-nets, longlines, creels) e.g. cod, herring, salmon, eel, plaice, flounder, turbot, perch, pike, pike-
perch, Norway lobster
Pelagic (trawl/seine) e.g. herring/sprat, mackerel, blue whiting, sandeel, vendace
Demersal (trawl) e.g. gadoids, witch flounder, shrimp, Norway lobster
Passive gear (gillnets, fyke-nets, longlines, creels) e.g. cod, herring, salmon, eel, plaice, flounder, turbot, perch, pike, pike-
perch, Norway lobster
Swedish fishing fleetSwedish fishing fleet1564 fishing vessels and 1880 licensed fishermen1564 fishing vessels and 1880 licensed fishermen
Havsfiskelaboratoriet, Karlskrona
BalticBaltic
Mainly small trawlers <24 m pelagic and demersal
Passive gears mainly gillnet and longlines
Mainly small trawlers <24 m pelagic and demersal
Passive gears mainly gillnet and longlines
Havsfiskelaboratoriet, Karlskrona
Sampling of Cod per ICES SDSampling of Cod per ICES SD
Havsfiskelaboratoriet, Karlskrona
Swedish Cod Fishery april 1996-2003
Swedish Cod Fishery april 2007
Havsfiskelaboratoriet, Karlskrona
Active gear (eg Trawl)Active gear (eg Trawl)
22
33
11
44
55
Passive gear (gillnet)Passive gear (gillnet)
22
33
11
44
55
Combined samplingCombined sampling
Gear typeGear type
DiscardDiscard DiscardDiscard
CodCod
Havsfiskelaboratoriet, Karlskrona
Ageing by analyzing Cod otoliths
Havsfiskelaboratoriet, Karlskrona
Transversal cut of Cod otolith – 3 years old
Havsfiskelaboratoriet, Karlskrona
ICES Working group –International Co-operation
ICES Working group –International Co-operation
Sampling commercial
fisheries
Sampling commercial
fisheries
Loggbooks
Sales slip
Loggbooks
Sales slip
Surveys:
R/V ARGOS
Surveys:
R/V ARGOS
Length measurments
Otolith samples
Length measurments
Otolith samples
Total catch per age group
Total catch per age group
Biological adviceBiological advice
Negotiations
Total allowable catch (TAC)
Negotiations
Total allowable catch (TAC)
Stock assessment – workflow
Havsfiskelaboratoriet, Karlskrona
FISK POPULATIONS MODELLFISK POPULATIONS MODELL
PopulationBiomass
Recruitment
Growth
Immigration
Natural mortality
Fishery mortality
Emigration
Havsfiskelaboratoriet, Karlskrona
11
22
33
44
10+10+
.
.
.
.
2005200520022002 20032003 2004200420012001
??
Stock assessment by VPA Virtual population analysis?
Stock assessment by VPA Virtual population analysis?
Osäkerheten i beräkningen minskar bakåt i modellen
Osäkerheten i beräkningen minskar bakåt i modellen
Havsfiskelaboratoriet, Karlskrona
Antal fiskar per åldersgrupp i fångstenAntal fiskar per åldersgrupp i fångsten
Längdmätning (många)Längdmätning (många)
Åldersbestämning (få)Åldersbestämning (få)
2
2 1
2 2
1 3
1 2 1
1 2 1
2 2
2 2 1
3838
Längd (cm)
Längd (cm)
ÅlderÅlder
1 2 3 4 5 ----- 10+
1 2 3 4 5 ----- 10+
4040
4242
4444
4646
4848
5050
3636
”Nyckel””Nyckel”
Havsfiskelaboratoriet, Karlskrona
Fishery dependent data vs Scientific Surveys
Fishery dependent data vs Scientific Surveys
33
2233
44
5+5+
22
33
Havsfiskelaboratoriet, Karlskrona
Havsfiskelaboratoriet, Karlskrona
Torsk beståndets utveckling Ö Bornholm
Torsken i Östersjön 1966-2007
0
200000
400000
600000
800000
1000000
1200000
1966 1971 1976 1981 1986 1991 1996 2001 2006
biomassa
lekbiomassa
gränsvärde (bpa)
gränsvärde (blim)
Havsfiskelaboratoriet, Karlskrona
EU management plan for E Baltic Cod
Goal Fishing mortality F=0,3
Maximum allowed increase of TAC annually 15% until
goal is reached
Maximum allowed decrease in TAC 10% until goal is
reached
Havsfiskelaboratoriet, Karlskrona
Landings
050
100150200250300350400450
1966 1971 1976 1981 1986 1991 1996 2001 2006
Lan
din
gs
in 1
000
t
Fishing Mortality
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1966 1971 1976 1981 1986 1991 1996 2001 2006
F(a
ges
4-7
)
F
Flim
Fpa
Recruitment (age 2)
0100200300400500600700800900
1966 1971 1976 1981 1986 1991 1996 2001 2006
Rec
ruit
men
t in
mill
ion
s
Spawning Stock Biomass
0
100
200
300
400
500
600
700
800
1966 1971 1976 1981 1986 1991 1996 2001 2006
SS
B in
100
0 t
SSB
Havsfiskelaboratoriet, Karlskrona
Landings
0
20000
40000
60000
80000
100000
120000
2008 2009 2010 2011 2012 2013 2014 2015
Yield
SSB
0
50000
100000
150000
200000
250000
300000
2008 2009 2010 2011 2012 2013 2014 2015
SSB Blim Bpa
Östersjötorsk (SD25-32)Scenario with F(status quo)=0,5
Mean Fishing Mortality
0,000
0,100
0,200
0,300
0,400
0,500
0,600
2008 2009 2010 2011 2012 2013 2014 2015
Havsfiskelaboratoriet, Karlskrona
Mean Fishing Mortality
0,000
0,100
0,200
0,300
0,400
0,500
0,600
2008 2009 2010 2011 2012 2013 2014 2015
SSB
0
100000
200000
300000
400000
500000
600000
2008 2009 2010 2011 2012 2013 2014 2015
SSB Blim Bpa
Landings
0
20000
40000
60000
80000
100000
120000
2008 2009 2010 2011 2012 2013 2014 2015
Yield
Landings 2010 ~ 56t tonnes
Östersjötorsk (SD25-32)Scenario enligt förvaltningsplan max ökning 15%
Havsfiskelaboratoriet, Karlskrona
Thank you!Thank you!