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Stock Assessment Graphs
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Witch (Glyptocephalus cynoglossus) in Subarea 4 and divisions 3.a and 7.d (North Sea, Skagerrak and Kattegat, eastern English Channel)
Species:
Stock Assessment Graphs
Stock code:
wit.27.3a47d
Assessment Year:
2017
Key:
8983
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
Fishing pressure units
Stock size description
Stock size units
Fish reference points
Management plan
SSB
MP
F
MP
MSY approach
MSYB
trigger
F
MSY
Precautionary approach
B
lim
B
pa
F
lim
F
pa
Age and Length
Recruitment
0
F
Fish data
Year
Landings
Discards
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1841
1976
1496
1977
1618
1978
1664
1979
1572
1980
1883
1981
1933
1982
3155
1983
3606
1984
3903
1985
3979
1986
3579
1987
3700
1988
3290
1989
3841
1990
3862
1991
3641
1992
3164
1993
2673
1994
2696
1995
2810
1996
2790
1997
3494
1998
3786
1999
4024
2000
4422
2001
4206
2002
3640
2003
3281
2004
3029
2005
2813
2006
2303
2007
2236
2008
1953
2009
1818
2010
1490
2011
1530
2012
1953
592
2013
2020
252
2014
2669
281
2015
2238
410
2016
2739
448
Custom reference points
Custom fish data column names
CustomName1
CustomName2
IBTS Q1
IBTS Q3
Custom fish data
Year
Custom1
Custom2
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
0.0997570544789712
0.1149837394184
1992
0.388576437372577
0.119162131913348
1993
0.277877966310807
0.0618811682472636
1994
0.0856488857687815
0.0810983355428256
1995
0.248334593015539
0.125968615442904
1996
0.0890654717371983
0.100076267141071
1997
0.251013940314613
0.169622649739093
1998
0.247732672895051
0.0848571939256315
1999
0.193646098671184
0.116193075855439
2000
0.241599636191346
0.0411324481997381
2001
0.127870814099035
0.111581005519052
2002
0.157398687450884
0.0875977322397761
2003
0.1211491728848
0.0507921544673818
2004
0.117686100969823
0.0764184633044873
2005
0.143555073736845
0.0547048257775818
2006
0.0554596115675783
0.0821893628581375
2007
0.0835002953112898
0.117761834648785
2008
0.10943695546998
0.0569679835555453
2009
0.0638926450040988
0.0532621914540164
2010
0.044013621603867
0.0637018056089269
2011
0.0477523200023367
0.0931528296778512
2012
0.0898128219385607
0.128767378238482
2013
0.0844704221398334
0.127556527542059
2014
0.288933922438506
0.0786403461343322
2015
0.188451119211875
0.123958039534227
2016
0.12836010077154
0.13
Sensivity data