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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:
2018
Key:
9779
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 SSB
SSB
High SSB
Landings
Low F
F
High F
1980
1919636
3300940
5676183
120129
174870
254555
29809
0.11
0.15
0.22
1981
922169
1429817
2216923
112786
163465
236917
21526
0.1
0.14
0.2
1982
1118758
1856906
3082078
123197
176018
251487
26499
0.11
0.15
0.21
1983
2970371
4502842
6825943
129433
184797
263843
26208
0.1
0.14
0.19
1984
3786624
5851774
9043215
158203
221382
309792
34545
0.1
0.14
0.19
1985
3056566
4626922
7004072
182423
246283
332498
35432
0.1
0.13
0.18
1986
894807
1382123
2134832
199849
262924
345907
35579
0.1
0.13
0.17
1987
2031440
3122030
4798107
228356
296765
385667
32628
0.09
0.12
0.16
1988
870669
1380877
2190062
225389
294119
383808
36418
0.09
0.11
0.15
1989
4055781
6255469
9648176
258439
332719
428348
33086
0.08
0.1
0.13
1990
5247951
7980319
12135305
296944
376991
478616
39180
0.08
0.1
0.13
1991
1919664
3044951
4829871
320700
404399
509943
33419
0.07
0.1
0.12
1992
3082227
4606695
6885166
360101
450459
563489
46610
0.08
0.1
0.13
1993
4551061
6940168
10583453
355472
438417
540716
49314
0.09
0.11
0.14
1994
2248563
3302312
4849881
426795
518654
630282
61986
0.1
0.13
0.15
1995
2864307
4266330
6354618
381017
461665
559383
65547
0.12
0.14
0.17
1996
2489999
3659363
5377887
374510
451226
543656
61303
0.13
0.16
0.19
1997
2376061
3487345
5118376
336211
406142
490619
69808
0.15
0.18
0.22
1998
3987884
5872662
8648235
309472
377166
459667
62474
0.15
0.19
0.23
1999
1972586
2911969
4298705
305838
371586
451469
66502
0.16
0.19
0.24
2000
3378240
4966313
7300922
277388
335992
406978
58852
0.15
0.19
0.23
2001
2994000
4458773
6640166
270007
325075
391375
57806
0.15
0.18
0.21
2002
4204591
6118013
8902193
268500
323244
389151
53969
0.13
0.16
0.19
2003
5130931
8269178
13326880
265150
318171
381794
53644
0.13
0.16
0.19
2004
1743853
2549248
3726614
274650
326800
388853
61423
0.13
0.16
0.19
2005
2446454
3545010
5136863
298564
354655
421285
62911
0.13
0.16
0.19
2006
2898857
4262309
6267049
298091
352442
416701
71318
0.14
0.17
0.2
2007
5512195
8014125
11651656
300544
354372
417842
78678
0.14
0.17
0.21
2008
3488716
4939559
6993762
293367
346598
409488
67914
0.14
0.17
0.21
2009
3975888
5869288
8664365
327894
388950
461374
71248
0.14
0.17
0.2
2010
4060201
5770320
8200724
376386
446839
530478
72590
0.14
0.17
0.21
2011
3233581
4554014
6413644
357870
425372
505607
81850
0.15
0.18
0.21
2012
5637136
7993952
11336123
394607
469134
557735
106007
0.17
0.2
0.24
2013
4743079
6650375
9324637
424982
503974
597649
114395.587258965
0.18
0.22
0.26
2014
4801884
6823909
9697389
434253
516274
613788
115366
0.19
0.22
0.27
2015
8712905
12767596
18709202
412262
491636
586292
114941.808
0.2
0.24
0.29
2016
4382898
6530521
9730483
364757
439588
529771
130028.583888
0.21
0.26
0.32
2017
4055373
7054394
12271245
351499
433092
533624
104357.6016236
0.2
0.25
0.31
2018
1380877
4606695
8269178
322008
421521
567390
Custom reference points
Custom fish data column names
Custom fish data
Sensivity data