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Whiting (Merlangius merlangus) in Division 7.a (Irish Sea)
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View source data
DOI:
10.17895/ices.data.7324
Species:
Merlangius merlangus
Stock code:
whg.27.7a
Assessment Year:
2019
Purpose:
Advice
Assessment Key:
12975
Stock Key:
169305
Year
Recruitment
97.5%
2.5%
SSB
97.5%
2.5%
Total
Discards
F
97.5%
2.5%
Age 0
Catch
Ages 1-3
thousands
tonnes
tonnes
tonnes
Year-1
1980
635229
1040890
229567
32900
53866
11934
16737
3314
0.38
0.62
0.138
1981
322377
589858
54896
43126
63863
22389
21331
3064
0.45
0.70
0.189
1982
284961
532960
36963
34608
52723
16492
17969
801
0.49
0.81
0.174
1983
880745
1316963
444527
21970
36818
7121
12405
1829
0.50
0.88
0.120
1984
630711
1017929
243493
14979
27065
2892
14999
3380
0.61
1.04
0.187
1985
513642
859425
167858
22720
35782
9658
18169
2644
0.74
1.22
0.27
1986
870632
1317140
424124
18159
29600
6719
12129
2066
0.58
0.98
0.182
1987
474781
796868
152694
16166
26843
5490
14270
3859
0.62
1.01
0.22
1988
488017
796462
179572
20453
31628
9278
11856
1611
0.52
0.86
0.187
1989
601264
915511
287018
16984
27181
6788
13408
2103
0.73
1.19
0.27
1990
522555
778295
266814
12677
20820
4534
10656
2444
0.62
1.00
0.25
1991
684435
908620
460251
13778
20841
6716
9946
2598
0.62
0.93
0.31
1992
230234
298762
161707
11873
16723
7023
12791
4203
1.01
1.38
0.64
1993
214824
269673
159976
9930
12876
6985
9230
2707
0.80
1.07
0.53
1994
183733
233007
134458
5730
7539
3921
7936
1173
0.83
1.11
0.54
1995
340766
419780
261753
4127
5448
2805
7044
2151
0.81
1.08
0.54
1996
203244
254379
152110
2878
3923
1833
7966
3631
0.89
1.15
0.63
1997
170729
217209
124250
3103
4018
2188
4205
1928
0.77
1.02
0.52
1998
167298
209987
124610
2572
3372
1772
3533
1304
1.08
1.43
0.72
1999
208166
260216
156116
1551
2145
956
2762
1092
0.85
1.15
0.56
2000
109119
138856
79382
1509
2066
952
2880
2118
1.12
1.46
0.78
2001
191982
240973
142992
1329
1776
882
1745
1012
0.90
1.23
0.58
2002
79962
101287
58637
1183
1629
736
1487
740
1.24
1.62
0.85
2003
120096
155113
85078
1195
1595
794
996
480
0.61
0.90
0.33
2004
95546
118915
72177
1269
1753
784
1038
905
1.70
2.3
1.12
2005
105851
134557
77144
543
821
264
397
272
0.44
0.69
0.20
2006
155056
193286
116826
1078
1534
623
1837
1773
1.52
2.1
0.97
2007
103943
130602
77283
580
886
273
1547
1512
1.19
1.59
0.80
2008
148998
185368
112628
724
1018
430
1206
1169
0.97
1.33
0.60
2009
92765
116975
68555
736
1041
430
1360
1321
1.10
1.48
0.72
2010
92709
115998
69420
821
1129
513
1184
1154
1.13
1.55
0.71
2011
151604
188864
114344
614
890
338
977
946
0.86
1.19
0.52
2012
79507
100588
58425
683
967
399
1399
1339
1.13
1.51
0.74
2013
159742
203585
115899
836
1160
512
981
948
0.65
0.93
0.37
2014
198580
244644
152516
942
1329
555
1974
1951
1.49
2.0
0.96
2015
122731
152437
93025
676
1011
341
1549
1521
0.96
1.32
0.61
2016
71365
92911
49819
965
1327
603
780
765
0.56
0.80
0.31
2017
108235
144918
71551
1146
1578
714
704
668
0.48
0.73
0.23
2018
174768
255732
93804
1077
1574
579
899
853
0.46
0.73
0.198
2019
118853
1376
Average
277744
411527
152109
8239
13030
3800
6520
1778
0.83
1.18
0.48
Fishing pressure
Stock size
2016
2017
2018
2017
2018
2019
Maximum sustainable yield
F
MSY
Above
MSY B
trigger
Below trigger
Precautionary approach
F
pa
,F
lim
Harvested unsustainably
B
pa
,B
lim
Reduced reproductive capacity
Management plan
F
MGT
B
MGT