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Whiting (Merlangius merlangus) in Division 6.a (West of Scotland)
Species:
Stock Assessment Graphs
Stock code:
whg.27.6a
Assessment Year:
2018
Key:
9792
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
44600
F
MSY
0.18
Precautionary approach
B
lim
31900
B
pa
44600
F
lim
0.27
F
pa
0.19
Age and Length
Recruitment
1
F
2-4
Fish data
Year
Low Recruitment
Recruitment
High Recruitment
Low TBiomass
TBiomass
High TBiomass
Low SSB
SSB
High SSB
Landings
Catches
Discards
Low F
F
High F
1981
159761.92
198942.99
238124.06
151602.0736
168324.563
488251.1996
119264.9968
134120.012
148975.0272
12193.6438
14325.4428
2131.799
0.183632104
0.22269591
0.261759716
1982
127280.816
162366.71
197452.604
98507.6834
109305.144
317117.9714
82012.2532
91818.495
101624.7368
13880.3964
19365.5314
5485.135
0.207306314
0.25194315
0.296579986
1983
158708.798
197243.08
235777.362
82924.7938
92664.029
268252.8518
55767.9026
62838.7
69909.4974
15962.379
22256.535
6294.156
0.347066958
0.41602345
0.484979942
1984
271538.7
324806
378073.3
72735.0172
81538.264
235811.5452
40280.1282
46008.349
51736.5698
16459.3751
20476.1541
4016.779
0.450644746
0.53759067
0.624536594
1985
260731.754
308252.98
355774.206
69927.65
78164.469
226256.588
36506.8002
41854.706
47202.6118
12879.0904
17719.3174
4840.227
0.521885708
0.61583455
0.709783392
1986
245304.464
288271.13
331237.796
64034.4502
71517.877
207070.2042
32916.394
37841.428
42766.462
8457.8959
11127.1989
2669.303
0.401200054
0.47892668
0.556653306
1987
338598.432
407271.47
475944.508
69079.3522
77442.573
223964.4982
35349.0356
40232.038
45115.0404
11542.1642
23459.9382
11917.774
0.48467983
0.57364487
0.66260991
1988
83337.164
105863.03
128388.896
44083.0054
49970.457
144023.9194
36150.2394
41272.825
46395.4106
11348.5483
19481.0053
8132.457
0.569433624
0.67348157
0.777529516
1989
281185.57
325196.16
369206.75
50299.0896
56427.811
163154.7116
19103.717
22471.638
25839.559
7522.6876
13399.1586
5876.471
0.499271476
0.59665687
0.694042264
1990
138506.562
175920.77
213334.978
50372.2984
57523.228
165418.7544
29177.2502
33352.909
37528.5678
5642.398
10172.484
4530.086
0.353003722
0.42931281
0.505621898
1991
197603.838
244410.64
291217.442
45112.0514
51626.526
148365.1034
23650.2852
27389.005
31127.7248
6657.7843
11541.1443
4883.36
0.363698188
0.4428209
0.521943612
1992
277590.618
335918.21
394245.802
59652.2066
68402.603
196457.4126
26034.6522
30362.605
34690.5578
6004.6821
15253.2321
9248.55
0.350481444
0.42896285
0.507444256
1993
214954.73
262759.66
310564.59
65141.483
75377.076
215895.635
36992.3818
43128.559
49264.7362
6871.7819
11631.1339
4759.352
0.367227714
0.45578236
0.544337006
1994
223780.806
276376.57
328972.334
53402.4864
63156.773
179716.0324
31605.1484
37745.879
43886.6096
5900.7172
9355.6152
3454.898
0.324642928
0.40771956
0.490796192
1995
245242.224
294173.57
343104.916
50336.159
60174.889
170685.937
30652.101
37784.241
44916.381
6078.4567
11849.2747
5770.818
0.351236396
0.45808722
0.564938044
1996
144254.902
184362.37
224469.838
48878.6216
59111.425
167101.4716
33718.893
41069.405
48419.917
7157.8017
15097.8167
7940.015
0.424624358
0.56429978
0.703975202
1997
126158.32
172259.87
218361.42
42005.9832
52377.016
146760.0152
26351.1874
32526.051
38700.9146
6290.4663
11541.6963
5251.23
0.468679154
0.62155531
0.774431466
1998
160630.882
225849.96
291069.038
34569.6492
45820.285
126210.2192
17450.8312
23280.114
29109.3968
4627.2056
13842.9246
9215.719
0.537287462
0.69343562
0.849583778
1999
108861.27
164874.14
220887.01
25425.0224
35947.501
97320.0244
14778.139
21309.242
27840.345
4612.9663
8588.0093
3975.043
0.667911428
0.83916441
1.010417392
2000
174698.676
256888.29
339077.904
24642.126
35621.354
95884.834
10481.7128
16253.308
22024.9032
3010.8344
16295.9234
13285.089
0.647889368
0.81584717
0.983804972
2001
72673.024
107097.57
141522.116
20129.9074
29065.968
78261.8434
12221.4198
18362.182
24502.9442
2439.2048
6701.8008
4262.596
0.578112794
0.73659303
0.895073266
2002
21732.266
39584.67
57437.074
10519.462
15906.126
42331.714
8596.5522
12985.749
17374.9458
1767.3882
4618.3192
2850.931
0.41641972
0.54398286
0.671546
2003
38920.728
62145
85369.272
8678.0842
13080.372
34838.8282
5102.8456
7889.942
10677.0384
1354.9358
2074.1478
719.212
0.429803908
0.56594653
0.702089152
2004
25120.478
39583.78
54047.082
6085.3214
9163.211
24411.7434
3675.5358
5743.524
7811.5122
811.0131
2970.0551
2159.042
0.425912864
0.58981634
0.753719816
2005
13654.628
21882.17
30109.712
4142.9788
5733.194
15609.3668
2675.0886
3786.682
4898.2754
340.6947
969.5617
628.867
0.328652434
0.48629045
0.643928466
2006
22687.964
27671.16
32654.356
4189.7732
4784.703
13759.1792
2994.3262
3471.703
3949.0798
380.1114
1326.5534
946.442
0.326961658
0.40710094
0.487240222
2007
11598.172
15200.8
18803.428
4143.8094
4709.945
13563.6994
3035.4836
3438.245
3841.0064
427.3923
744.5826
317.1903
0.25377889
0.32327912
0.39277935
2008
13708.184
16916.3
20124.416
3797.7578
4358.185
12514.1278
2637.1262
3064.78
3492.4338
445.3506
759.3913
314.0407
0.290078498
0.36424367
0.438408842
2009
21743.838
25630.29
29516.742
4257.4418
4879.892
14017.2258
2992.3522
3512.941
4033.5298
488.2974
907.58
419.2826
0.246808792
0.31309194
0.379375088
2010
51077.046
60969.27
70861.494
4619.2642
5232.49
15084.2442
2474.2154
2865.072
3255.9286
306.8351
1199.7989
892.9638
0.180640668
0.23145632
0.282271972
2011
16666.67
19543.9
22421.13
5665.915
6467.831
18601.577
5105.2232
5881.402
6657.5808
230.0686
568.7969
338.7283
0.10962089
0.14212141
0.17462193
2012
33213.336
40425.69
47638.044
7130.4058
8038.767
23207.9398
4997.054
5723.866
6450.678
312.8176
1039.3332
726.5156
0.09496384
0.12453988
0.15411592
2013
17286.39
20658.74
24031.09
6787.0876
7691.321
22169.7296
5980.631
6839.473
7698.315
222.0706
1173.1427
951.0721
0.069374368
0.09223166
0.115088952
2014
36515.046
47025.69
57536.334
7994.7756
9054.069
26102.9136
5928.7146
6739.439
7550.1634
183.9976
767.3456
583.348
0.052930832
0.0711184
0.089305968
2015
92116.704
109348.78
126580.856
14025.9666
15895.163
45816.2926
6676.1594
7768.156
8860.1526
227.276
1062.615
835.339
0.049152012
0.06700018
0.084848348
2016
55359.846
73665.77
91971.694
19205.2388
21942.875
63090.9888
14462.583
16562.791
18662.999
232.9367
1029.763
796.8263
0.036554622
0.05170674
0.066858858
2017
67057.5
115988.85
164920.2
21221.6526
25694.062
72609.7766
15573.8886
18098.091
20622.2934
176.4829
1383.3773
1206.8944
0.027932268
0.04104287
0.054153472
2018
19681.198
117219.14
214757.082
22575.235
31459.695
85494.625
18041.496
23143.216
28244.936
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
custom1
custom2
custom3
custom4
custom5
Custom fish data column names
Custom fish data
Sensivity data