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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:
2024
Key:
18728
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
F
Fishing pressure units
Stock size description
SSB
Stock size units
tonnes
Fish reference points
Management plan
SSB
MP
F
MP
MSY approach
MSYB
trigger
4576
F
MSY
0.163
Precautionary approach
B
lim
3293
B
pa
4576
F
lim
0.331
F
pa
0.267
Age and Length
Recruitment
1
F
4-8
Fish data
Year
Low Recruitment
Recruitment
High Recruitment
Low SSB
SSB
High SSB
Landings
Catches
Discards
Low F
F
High F
1950
14028
26020
48264
1724
3594
7491
2379
0.15
0.291
0.564
1951
15168
27600
50224
1690
3517
7317
2568
0.159
0.308
0.598
1952
17816
32194
58174
1546
3300
7042
2554
0.162
0.321
0.634
1953
20043
35361
62385
1363
3040
6779
2263
0.151
0.311
0.637
1954
21268
37622
66551
1256
2888
6640
1590
0.128
0.273
0.582
1955
18072
34002
63972
1244
2898
6748
2027
0.136
0.29
0.618
1956
14190
28049
55444
1296
2978
6844
1936
0.134
0.286
0.609
1957
12420
24252
47356
1401
3129
6987
1991
0.138
0.288
0.6
1958
11626
21706
40525
1495
3244
7036
2678
0.16
0.321
0.644
1959
10932
20014
36642
1480
3172
6797
2333
0.161
0.323
0.649
1960
10135
19432
37258
1341
2945
6467
2563
0.17
0.345
0.698
1961
9247
17964
34898
1136
2626
6070
2093
0.158
0.331
0.694
1962
8354
15778
29801
1001
2386
5689
1419
0.135
0.291
0.627
1963
6878
13410
26146
934
2244
5393
1523
0.144
0.306
0.65
1964
5571
11639
24314
858
2059
4939
1760
0.163
0.342
0.718
1965
5282
10739
21832
769
1834
4374
1356
0.156
0.329
0.696
1966
5479
10537
20265
695
1650
3920
1137
0.151
0.318
0.673
1967
6807
12661
23549
622
1481
3524
1125
0.16
0.336
0.707
1968
9616
17194
30742
525
1286
3148
1174
0.17
0.366
0.787
1969
13699
24286
43054
436
1116
2856
891
0.151
0.342
0.773
1970
14046
25885
47704
407
1055
2736
597
0.123
0.288
0.675
1971
14007
25833
47646
452
1137
2862
843
0.135
0.307
0.697
1972
13468
25278
47443
546
1300
3095
908
0.139
0.307
0.674
1973
13133
24343
45120
686
1552
3512
1494
0.162
0.337
0.7
1974
13585
24964
45873
814
1772
3862
1138
0.149
0.307
0.633
1975
14724
26901
49148
922
1949
4119
1841
0.171
0.339
0.672
1976
17858
32252
58248
966
2020
4224
1496
0.162
0.32
0.633
1977
22943
40713
72246
998
2078
4326
1618
0.165
0.322
0.627
1978
30723
52403
89380
1030
2144
4464
1664
0.165
0.32
0.618
1979
36032
63163
110724
1107
2270
4653
1572
0.158
0.304
0.583
1980
34376
63260
116414
1280
2547
5071
1883
0.163
0.304
0.565
1981
31464
58257
107865
1590
3006
5685
1933
0.165
0.293
0.522
1982
29412
54107
99536
2038
3616
6417
3155
0.201
0.329
0.539
1983
30462
54829
98688
2499
4146
6879
3606
0.222
0.345
0.538
1984
31936
56562
100177
2803
4439
7030
3903
0.233
0.354
0.538
1985
34284
59511
103301
2907
4514
7008
3979
0.235
0.353
0.531
1986
33190
58971
104778
2908
4493
6943
3579
0.226
0.338
0.506
1987
28832
53296
98515
2917
4510
6972
3700
0.224
0.335
0.501
1988
24952
46718
87473
2982
4597
7085
3290
0.213
0.317
0.47
1989
23374
42972
79001
3145
4780
7264
3841
0.223
0.325
0.473
1990
23356
41889
75127
3251
4835
7192
3862
0.227
0.325
0.466
1991
25632
44999
79002
3284
4779
6953
3641
0.222
0.314
0.444
1992
27931
48515
84268
3210
4623
6658
3164
0.207
0.292
0.412
1993
30003
52141
90612
3134
4508
6483
2673
0.19
0.269
0.381
1994
31318
55649
98883
3095
4465
6440
2696
0.188
0.267
0.378
1995
31747
56397
100188
3142
4543
6569
2810
0.19
0.269
0.381
1996
31372
54963
96295
3222
4650
6710
2790
0.193
0.274
0.389
1997
30131
52540
91616
3311
4767
6864
3494
0.217
0.308
0.436
1998
27593
48546
85413
3255
4716
6832
3786
0.239
0.342
0.491
1999
25106
44552
79060
3067
4513
6643
4024
0.262
0.381
0.554
2000
23277
41392
73605
2785
4172
6250
4422
0.291
0.427
0.627
2001
26095
43744
73331
2519
3771
5646
4206
0.311
0.452
0.657
2002
25682
41953
68532
2274
3350
4934
3813
0.325
0.463
0.662
2003
22699
36395
58356
2121
3007
4264
3308
0.334
0.46
0.633
2004
17746
27961
44058
2038
2737
3677
3059
0.348
0.459
0.604
2005
15998
24450
37367
2041
2586
3276
2960
0.356
0.448
0.563
2006
17462
25711
37855
2063
2509
3050
2335
0.331
0.403
0.491
2007
12871
18968
27952
2085
2467
2918
2271
0.321
0.384
0.459
2008
31248
42894
58880
2007
2338
2723
1999
0.316
0.376
0.448
2009
51284
69270
93564
1790
2082
2421
1894
2303
408.9
0.333
0.398
0.477
2010
50048
67800
91849
1728
2019
2358
1550
2074
523.6
0.283
0.343
0.416
2011
24761
33452
45193
1970
2296
2675
1772
2220
447.8
0.21
0.258
0.316
2012
20313
27393
36941
2449
2847
3310
2153
2600
446.6
0.182
0.224
0.276
2013
23757
31950
42968
3002
3493
4065
2033
2258
225.4
0.19
0.232
0.283
2014
26042
35168
47492
3360
3925
4585
2741
2992
251.3
0.24
0.291
0.353
2015
18120
24379
32801
3382
3953
4621
2363
2762
399.2
0.226
0.274
0.332
2016
11882
16309
22384
3416
3988
4656
3025
3312
286.8
0.23
0.278
0.336
2017
21867
29830
40693
3316
3894
4572
3360
3509
149.8
0.266
0.323
0.391
2018
17749
24416
33586
3103
3683
4372
3141
3293
151.5
0.257
0.315
0.386
2019
40523
56288
78184
2862
3443
4143
2707
2890
183.1
0.253
0.313
0.387
2020
27002
37791
52890
2575
3162
3881
1980
2164
184.1
0.221
0.279
0.353
2021
31656
46022
66908
2624
3276
4091
1857
2102
245.3
0.198
0.256
0.33
2022
19534
30348
47150
2783
3562
4560
1643
1804
161.3
0.168
0.226
0.303
2023
9884
18832
35882
3151
4148
5459
1510
1644
133.9
0.144
0.204
0.289
2024
33594
4998
Custom reference points
Custom fish data column names
Custom fish data
Sensivity data