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Whiting (Merlangius merlangus) in Division 7.a (Irish Sea)
Species:
Stock Assessment Graphs
Stock code:
whg.27.7a
Assessment Year:
2019
Key:
12975
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
F
Fishing pressure units
Year-1
Stock size description
SSB
Stock size units
tonnes
Fish reference points
Management plan
SSB
MP
F
MP
MSY approach
MSYB
trigger
16300
F
MSY
0.219
Precautionary approach
B
lim
10000
B
pa
16300
F
lim
0.371
F
pa
0.225
Age and Length
Recruitment
0
F
1-3
Fish data
Year
Low Recruitment
Recruitment
High Recruitment
TBiomass
Low SSB
SSB
High SSB
Landings
Catches
Discards
Low F
F
High F
1980
229567.4
635228.6
1040889.8
61420.9178218
11933.61
32899.73
53865.85
13422
16737
3314
0.1375331
0.3786915
0.6198499
1981
54895.6
322376.8
589858
59643.68759862
22388.91
43125.71
63862.51
18267
21331
3064
0.1889655
0.4455295
0.7020935
1982
36962.6
284961.4
532960.2
43535.4317494
16492.224
34607.72
52723.216
17167
17969
801
0.1741445
0.4924681
0.8107917
1983
444527.3
880744.9
1316962.5
29928.45030572
7121.138
21969.51
36817.882
10577
12405
1829
0.1195617
0.5003897
0.8812177
1984
243493.4
630711
1017928.6
37828.550796
2892.37
14978.71
27065.05
11619
14999
3380
0.1865761
0.6130329
1.0394897
1985
167858.3
513641.5
859424.7
37041.6614529
9658.058
22719.89
35781.722
15525
18169
2644
0.2698668
0.7443828
1.2188988
1986
424124.3
870631.9
1317139.5
28818.99289167
6718.5
18159.02
29599.54
10063
12129
2066
0.1817638
0.5797614
0.977759
1987
152694
474780.8
796867.6
33168.2189654
5489.898
16166.41
26842.922
10411
14270
3859
0.2234177
0.6151433
1.0068689
1988
179572
488017.2
796462.4
29995.05913564
9278.146
20452.89
31627.634
10245
11856
1611
0.1866158
0.521227
0.8558382
1989
287017.6
601264.4
915511.2
26698.07557884
6787.616
16984.32
27181.024
11305
13408
2103
0.2677732
0.7312544
1.1947356
1990
266813.7
522554.5
778295.3
24487.30476917
4534.054
12677.07
20820.086
8212
10656
2444
0.2457054
0.620477
0.9952486
1991
460250.5
684435.3
908620.1
23051.6836224
6716.354
13778.43
20840.506
7348
9946
2598
0.3111714
0.6224586
0.9337458
1992
161706.82
230234.3
298761.78
22568.53237644
7022.63
11872.65
16722.67
8588
12791
4203
0.640175
1.008557
1.376939
1993
159975.76
214824.4
269673.04
13307.06347496
6984.678
9930.362
12876.046
6523
9230
2707
0.5337768
0.8003368
1.0668968
1994
134458.3
183732.7
233007.1
8920.65952735
3921.1554
5729.961
7538.7666
6763
7936
1173
0.5406865
0.8264153
1.1121441
1995
261752.82
340766.3
419779.78
6915.524371712
2805.1634
4126.811
5448.4586
4893
7044
2151
0.5383747
0.8107755
1.0831763
1996
152109.76
203244.2
254378.64
7272.473357984
1833.4918
2878.211
3922.9302
4335
7966
3631
0.6309942
0.8916154
1.1522366
1997
124249.66
170729.1
217208.54
5369.60600185
2187.9614
3102.811
4017.6606
2277
4205
1928
0.5190906
0.7713622
1.0236338
1998
124609.6
167298.4
209987.2
4268.24119177
1772.021
2571.897
3371.773
2229
3533
1304
0.7223768
1.076882
1.4313872
1999
156116.34
208166.1
260215.86
3105.082598032
955.9652
1550.688
2145.4108
1670
2762
1092
0.5552104
0.853836
1.1524616
2000
79381.88
109119
138856.12
3492.46606885
952.0668
1509.236
2066.4052
762
2880
2118
0.7802924
1.118118
1.4559436
2001
142992.1
191982.3
240972.5
2273.04104254
881.9746
1328.933
1775.8914
733
1745
1012
0.5775752
0.9040328
1.2304904
2002
58637.19
79961.99
101286.79
2871.968689444
735.9392
1182.682
1629.4248
747
1487
740
0.8478106
1.236361
1.6249114
2003
85078.44
120095.8
155113.16
1848.185208902
794.323
1194.555
1594.787
517
996
480
0.3260326
0.6108402
0.8956478
2004
72176.8
95545.88
118914.96
2357.976829086
784.3932
1268.768
1753.1428
133
1038
905
1.119671
1.696695
2.273719
2005
77144.44
105850.6
134556.76
1389.403452103
263.8828
542.5556
821.2284
125
397
272
0.201526
0.4449972
0.6884684
2006
116826.3
155056.1
193285.9
2205.21668775
623.1914
1078.421
1533.6506
64
1837
1773
0.9709608
1.516174
2.0613872
2007
77282.58
103942.5
130602.42
2112.058965407
272.9087
579.6879
886.4671
35
1547
1512
0.7954074
1.194777
1.5941466
2008
112628.24
148998
185367.76
1669.5952644953
430.2013
724.2601
1018.3189
37
1206
1169
0.5991889
0.9652973
1.3314057
2009
68555.04
92764.96
116974.88
2220.5051163466
429.87
735.6692
1041.4684
39
1360
1321
0.7176288
1.097418
1.4772072
2010
69420.49
92709.21
115997.93
1716.639293956
513.3284
821.2836
1129.2388
30
1184
1154
0.7083166
1.131069
1.5538214
2011
114344.4
151604
188863.6
1469.646404406
338.4763
614.1699
889.8635
31
977
946
0.5232173
0.8559861
1.1887549
2012
58424.82
79506.58
100588.34
2163.881218388
398.97
682.8956
966.8212
60
1399
1339
0.7434916
1.127338
1.5111844
2013
115898.76
159742
203585.24
1619.3633877038
512.3689
836.1217
1159.8745
33
981
948
0.3673339
0.6504559
0.9335779
2014
152516.48
198580.4
244644.32
2788.931280963
554.6686
941.9842
1329.2998
23
1974
1951
0.964191
1.489569
2.014947
2015
93025.24
122731
152436.76
2572.3532016786
341.1291
675.9363
1010.7435
28
1549
1521
0.6072991
0.9635095
1.3197199
2016
49818.63
71364.91
92911.19
2103.2282074983
603.0485
964.8841
1326.7197
15
780
765
0.3126986
0.557581
0.8024634
2017
71551.14
108234.5
144917.86
1838.557754818
714.2366
1146.201
1578.1654
36
704
668
0.2323527
0.4806259
0.7288991
2018
93804.32
174768
255731.68
2175.082424234
579.0906
1076.617
1574.1434
46
899
853
0.1978888
0.4640764
0.730264
2019
118853
1375.53865127674
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
custom1
custom2
custom3
custom4
custom5
Custom fish data column names
Custom fish data
Sensivity data