ICES Marine Data
News
Events
Calendar
Library
SharePoint Login
Admin
About ICES
Who we are
How we work
Global cooperation
Project collaborations
ICES Awards
Jobs at ICES
Science
Expert groups
Science priorities
Publications
Data
Dataset Collections
Data Portals
Data Tools
Assessment Tools
Maps
Vocabularies
Guidelines and Policy
Advice
Latest advice
Ecosystem overviews
Fisheries overviews
ICES ecosystems and advisory areas
Join us
Why join us
Join our expert groups
Become an observer
Join our advisory process
Dataset Collections
Data Portals
Data Tools
Assessment Tools
Maps
Vocabularies
Guidelines and Policy
Stock Assessment Graphs
Stock assessment graphs
>
View list of published graphs and tables
> View published graphs and tables
Witch (Glyptocephalus cynoglossus) in Subarea 4 and divisions 3.a and 7.d (North Sea, Skagerrak and Kattegat, eastern English Channel)
(
Link to advice
)
Download graphs and tables(.doc)
Download stock data (XML)
Download standard graphs (zip) - regular size
Download standard graphs (zip) - powerpoint size
View on the map
View source data
DOI:
10.17895/ices.data.7314
Species:
Glyptocephalus cynoglossus
Stock code:
wit.27.3a47d
Assessment Year:
2019
Purpose:
Advice
Assessment Key:
12955
Stock Key:
169309
Year
Recruitment
97.5%
2.5%
SSB
97.5%
2.5%
Landings
Discards
F
97.5%
2.5%
Age 1
Ages 4-8
Number of individuals
tonnes
tonnes
tonnes
Year-1
1950
26944
48817
14871
3504
7335
1674
2379
0.29
0.54
0.161
1951
27793
49372
15646
3456
7217
1655
2568
0.31
0.56
0.168
1952
30773
54222
17465
3297
6994
1555
2554
0.32
0.59
0.170
1953
34413
59817
19798
3049
6665
1395
2263
0.31
0.59
0.161
1954
36464
63404
20971
2843
6352
1272
1590
0.28
0.55
0.142
1955
35019
62309
19682
2842
6411
1260
2027
0.30
0.58
0.150
1956
29793
54317
16341
2871
6426
1283
1936
0.29
0.57
0.149
1957
24563
45612
13227
2981
6541
1359
1991
0.29
0.57
0.152
1958
21609
39582
11797
3114
6709
1445
2678
0.32
0.61
0.169
1959
20731
37121
11578
3070
6581
1432
2333
0.32
0.61
0.170
1960
19743
36066
10808
2919
6382
1335
2563
0.34
0.65
0.177
1961
17640
32696
9517
2622
5969
1151
2093
0.33
0.65
0.168
1962
15696
28765
8564
2352
5526
1001
1419
0.30
0.60
0.150
1963
14369
26347
7836
2216
5272
931
1523
0.31
0.62
0.156
1964
12766
24044
6778
2070
4955
865
1760
0.34
0.67
0.170
1965
11182
21291
5873
1839
4415
766
1356
0.33
0.66
0.164
1966
10978
20428
5899
1641
3963
679
1137
0.32
0.65
0.159
1967
12773
22782
7162
1490
3619
613
1125
0.33
0.67
0.165
1968
17221
29773
9961
1338
3312
541
1174
0.35
0.72
0.172
1969
22223
38188
12933
1170
2971
461
891
0.33
0.70
0.156
1970
25286
43970
14541
1083
2750
427
597
0.29
0.62
0.134
1971
25586
44361
14757
1150
2819
469
843
0.30
0.63
0.143
1972
25417
44670
14462
1303
3013
564
908
0.30
0.61
0.146
1973
25125
44196
14283
1544
3404
700
1494
0.32
0.63
0.162
1974
25542
45131
14456
1732
3695
812
1138
0.30
0.58
0.152
1975
27424
48446
15524
1947
4082
929
1841
0.32
0.61
0.169
1976
31600
55277
18065
2032
4235
975
1496
0.31
0.58
0.163
1977
39875
68590
23181
2127
4420
1023
1618
0.31
0.57
0.165
1978
51233
86114
30481
2212
4565
1071
1664
0.30
0.56
0.166
1979
60194
102830
35236
2337
4723
1156
1572
0.29
0.53
0.161
1980
61641
107193
35446
2600
5045
1340
1883
0.29
0.51
0.166
1981
58389
101975
33433
3022
5527
1652
1933
0.28
0.48
0.167
1982
55230
96509
31607
3671
6312
2135
3155
0.31
0.49
0.193
1983
53634
93401
30798
4242
6915
2602
3606
0.32
0.49
0.21
1984
55235
95055
32096
4574
7239
2891
3903
0.32
0.49
0.22
1985
57446
97559
33826
4724
7397
3016
3979
0.32
0.48
0.22
1986
57725
98674
33769
4774
7452
3058
3579
0.31
0.46
0.21
1987
52809
91660
30426
4814
7510
3086
3700
0.31
0.46
0.21
1988
46776
82338
26574
4864
7527
3143
3290
0.30
0.43
0.20
1989
42465
74791
24111
5083
7766
3327
3841
0.30
0.43
0.21
1990
41986
73164
24094
5163
7759
3436
3862
0.30
0.43
0.21
1991
43865
75541
25472
5160
7640
3485
3641
0.29
0.41
0.21
1992
47786
81480
28025
5013
7355
3416
3164
0.27
0.38
0.193
1993
50974
86734
29958
4879
7141
3333
2673
0.26
0.36
0.181
1994
52920
91137
30729
4807
7025
3289
2696
0.25
0.36
0.179
1995
52717
90767
30618
4901
7163
3354
2810
0.26
0.36
0.181
1996
52098
88844
30550
4969
7222
3418
2790
0.26
0.37
0.185
1997
49996
85312
29299
5111
7423
3519
3494
0.29
0.41
0.21
1998
46864
80980
27120
5032
7361
3440
3786
0.32
0.45
0.23
1999
43244
75677
24711
4788
7130
3215
4024
0.35
0.51
0.25
2000
41436
72639
23637
4424
6730
2908
4422
0.39
0.57
0.27
2001
43501
72932
25947
4021
6169
2621
4206
0.42
0.60
0.29
2002
42636
70324
25849
3562
5441
2332
3813
1529
0.43
0.61
0.31
2003
37802
61543
23219
3171
4712
2134
3308
349
0.43
0.59
0.32
2004
29129
47057
18031
2853
4048
2010
3059
369
0.43
0.57
0.33
2005
24642
39611
15330
2691
3612
2005
2960
419
0.42
0.53
0.33
2006
25433
39658
16310
2600
3328
2031
2335
296
0.38
0.47
0.30
2007
22011
35702
13570
2605
3240
2094
2271
199
0.36
0.44
0.29
2008
45048
66212
30649
2522
3105
2048
1999
318
0.35
0.43
0.28
2009
82315
117821
57509
2303
2874
1846
1863
455
0.36
0.45
0.28
2010
78253
113109
54138
2229
2830
1756
1531
559
0.31
0.40
0.25
2011
38770
56948
26395
2592
3327
2020
1567
547
0.24
0.31
0.180
2012
29349
43249
19916
3350
4344
2584
1952
555
0.20
0.27
0.152
2013
30023
44556
20230
4320
5702
3273
2013
254
0.195
0.26
0.144
2014
28852
43596
19094
5210
7033
3859
2685
307
0.22
0.29
0.159
2015
17677
27426
11393
5350
7418
3858
2240
449
0.21
0.29
0.150
2016
9761
16029
5944
5449
7816
3799
2744
390
0.21
0.30
0.146
2017
14992
25658
8760
5472
8291
3612
2850
236
0.24
0.36
0.162
2018
9679
18848
4970
5217
8566
3177
3010
199
0.24
0.37
0.152
2019
9761
Average
35212
60293
21091
3337
5679
2042
2423
437
0.31
0.51
0.193
Fishing pressure
Stock size
2016
2017
2018
2016
2017
2018
Maximum sustainable yield
F
MSY
Above
MSY B
trigger
Above trigger
Precautionary approach
F
pa
,F
lim
Increased risk
B
pa
,B
lim
Full reproductive capacity
Management plan
F
MGT
B
MGT