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Herring (Clupea harengus) in subdivisions 30 and 31 (Gulf of Bothnia)
Species:
Stock Assessment Graphs
Stock code:
her.27.3031
Assessment Year:
2017
Key:
8959
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
283180
F
MSY
0.21
Precautionary approach
B
lim
202272
B
pa
283180
F
lim
0.29
F
pa
0.23
Age and Length
Recruitment
1
F
3-7
Fish data
Year
Low Recruitment
Recruitment
High Recruitment
Low TBiomass
TBiomass
High TBiomass
Low SSB
SSB
High SSB
Landings
Catches
Low F
F
High F
1980
1966764
3223570
5283504
163355
234216
335816
122401
184795
278992
29809
29809
0.098
0.145
0.21
1981
992041
1528810
2356010
161387
228662
323981
115211
172992
259751
13700
21526
0.095
0.136
0.196
1982
1287226
2084418
3375318
158267
224583
318685
126964
187775
277712
17847
26499
0.099
0.141
0.2
1983
3062310
4638956
7027348
183062
256017
358047
133444
197008
290849
18501
26208
0.095
0.133
0.187
1984
3839912
5861992
8948889
264850
359691
488493
163541
236334
341526
25629
34545
0.096
0.134
0.186
1985
3140460
4742144
7160712
276864
368060
489295
188867
261974
363378
26120
35432
0.092
0.126
0.173
1986
974286
1488084
2272838
267175
350459
459705
207291
279009
375540
26489
35579
0.089
0.12
0.162
1987
2215126
3368574
5122637
291822
378511
490951
237808
315212
417809
24520
32628
0.084
0.112
0.15
1988
984412
1510574
2317965
299725
389259
505539
236802
315212
419584
27650
36418
0.081
0.107
0.141
1989
4437847
6783475
10368884
345566
444631
572095
272605
356825
467063
28658
33086
0.074
0.097
0.127
1990
5384527
8170168
12396937
406484
519177
663113
312025
402721
519780
31282
39180
0.069
0.091
0.119
1991
2188266
3368574
5185516
407754
519177
661047
339830
434087
554488
26219
33419
0.067
0.088
0.116
1992
3333855
4930742
7292522
471871
591253
740840
382093
484562
614510
39310
46610
0.075
0.096
0.123
1993
4605768
6934365
10440260
515122
636029
785315
374026
468364
586495
40179
49314
0.079
0.101
0.129
1994
2338686
3419483
4999758
530131
649527
795813
447531
552937
683171
56380
61986
0.095
0.118
0.147
1995
3099775
4569891
6737234
488288
596002
727479
399257
492377
607216
61086
65547
0.11
0.136
0.168
1996
2657669
3870909
5638000
468453
569207
691632
389742
478303
586988
56109
61303
0.12
0.148
0.183
1997
2450984
3569728
5199120
446957
543074
659859
351344
432787
533108
65527
69808
0.138
0.171
0.21
1998
4115620
5962498
8638159
422000
515555
629852
321779
400312
498012
56892
62474
0.144
0.178
0.22
1999
2024918
2954973
4312205
401989
491393
600681
318698
395537
490902
62345
66502
0.15
0.186
0.23
2000
3505207
5070754
7335528
356048
434956
531352
287380
355756
440401
56261
58852
0.145
0.178
0.22
2001
3064209
4510867
6640514
353907
430198
522934
279943
344552
424073
54984
57806
0.135
0.166
0.2
2002
4462858
6465559
9366968
365484
443743
538758
278948
343176
422194
50218
53969
0.121
0.149
0.184
2003
5900691
9407333
14997889
378774
461390
562026
276897
339422
416066
49638
53644
0.12
0.148
0.181
2004
1865687
2727784
3988238
395109
478303
579015
287380
349410
424828
55450
61423
0.123
0.15
0.184
2005
2662138
3859314
5594866
402348
484077
582409
313646
380408
461381
57942
62911
0.122
0.149
0.181
2006
3284221
4789804
6985590
407088
488454
586083
314858
381170
461448
68365
71318
0.126
0.153
0.186
2007
6004982
8640750
12433438
427751
514011
617667
320807
388870
471373
75432
78678
0.13
0.159
0.194
2008
3866344
5460222
7711166
418601
505347
610068
309813
377377
459675
65430
67914
0.129
0.158
0.194
2009
4648894
6729423
9741055
472388
573206
695540
343788
421258
516185
68873
71248
0.125
0.154
0.191
2010
4641834
6537073
9206129
491940
598391
727877
396956
487478
598643
72590
72590
0.124
0.153
0.19
2011
3595020
5091077
7209715
490371
596599
725838
377437
464632
571969
81850
81850
0.127
0.158
0.197
2012
6131439
8841791
12750232
539005
658026
803329
427128
528078
652887
100640
106007
0.145
0.18
0.23
2013
5111482
7188550
10109640
580160
709276
867126
457851
566935
702008
114396
114395.587258965
0.155
0.194
0.24
2014
5546624
7984398
11493589
598403
736011
905262
465646
581287
725648
115366
115366
0.159
0.2
0.25
2015
8172783
12031034
17710708
596038
741181
921668
442015
557379
702851
114942
114941.808
0.167
0.21
0.28
2016
3521861
6537073
12133733
548466
703624
902677
405129
524395
678772
130029
130028.583888
0.173
0.23
0.3
2017
1510361
4931038
12033311
374584
520680
747096
Custom reference points
Custom fish data column names
Custom fish data
Sensivity data