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Stock Assessment Graphs
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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:
2026
Key:
22377
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
F
Fishing pressure units
Stock size description
SSB
Stock size units
tonnes
Fish reference points
Management plan
SSB
MP
F
MP
MSY approach
MSYB
trigger
613355
F
MSY
0.218
Precautionary approach
B
lim
389938
B
pa
516727
F
lim
F
pa
0.218
Age and Length
Recruitment
0
F
3-7
Fish data
Year
Low Recruitment
Recruitment
High Recruitment
Low SSB
SSB
High SSB
Catches
Low F
F
High F
1963
9192159.29545975
19661000
42052678.6552676
951895.239
1088170
1224444.761
29739
0.025574948
0.0292558
0.032936652
1964
8563084.37485553
18004600
37856175.061392
951040.4375
1086280
1221519.5625
25204
0.02184021845
0.0249532
0.02806618155
1965
7956202.42360236
16453000
34023921.7892389
929604.31
1063050
1196495.69
27541
0.0247480714
0.0283978
0.0320475286
1966
7343765.76704793
14946200
30418847.976111
836698.0055
980231
1123763.9945
22164
0.02103643245
0.0244896
0.02794276755
1967
6669601.55085557
13338900
26677193.8103523
751909.7955
899881
1047852.2045
27772
0.02816091685
0.0333237
0.03848648315
1968
6307183.27974985
12296900
23974846.2828873
669237.782
816183
963128.218
28966
0.03183089555
0.0383688
0.04490670445
1969
6213071.65407717
11702800
22043127.0497461
585491.4395
725489
865486.5605
35996
0.0440107896
0.0540116
0.0640124104
1970
10496516.9916298
17620000
29577849.514041
526772.1125
667580
808387.8875
32790
0.0425556305
0.0534934
0.0644311695
1971
7827045.08272156
13177200
22184438.4445047
403369.9195
511744
620118.0805
36347
0.06170497655
0.0777875
0.09387002345
1972
11397742.2147498
17524600
26944950.9713045
423205.8355
546581
669956.1645
34092
0.0518686191
0.0665789
0.0812891809
1973
16434616.0769251
23447500
33452881.021171
447954.379
588289
728623.621
26507
0.0367771475
0.0479212
0.0590652525
1974
13197661.0664188
18760200
26667233.1005316
387687.1325
505669
623650.8675
26776
0.0417902768
0.0541741
0.0665579232
1975
30878673.5071615
40111100
52103933.2481965
415705.589
538113
660520.411
21811
0.03211596175
0.0415794
0.05104283825
1976
10748373.9630153
14708100
20126598.3444916
423796.797
547536
671275.203
30520
0.04405616395
0.0572071
0.07035803605
1977
6805911.01700795
9444030
13104741.2195098
459110.7895
590505
721899.2105
33634
0.04411806845
0.0575452
0.07097233155
1978
6826377.66257579
9275640
12603682.6062646
519141.245
669032
818922.755
34873
0.04478825245
0.0586773
0.07256634755
1979
18992988.6397523
24042500
30434483.8621217
471466.224
613181
754895.776
26109
0.03593464015
0.0471781
0.05842155985
1980
10345245.300961
13551000
17750144.6952584
411118.0745
537852
664585.9255
29809
0.0446303358
0.0586687
0.0727070642
1981
16041439.7509323
20453400
26078804.5247426
418509.9965
549186
679862.0035
21526
0.03056221515
0.0399386
0.04931498485
1982
26830892.4987518
33318400
41374537.8992383
435803.5975
568069
700334.4025
26499
0.03833429425
0.0501032
0.06187210575
1983
35484303.7750121
43423300
53138508.6444283
476320.168
621017
765713.832
26208
0.032523512
0.0424501
0.052376688
1984
29424574.8268645
36126300
44354406.4568246
529102.8565
681052
833001.1435
34545
0.0376770014
0.0488378
0.0599985986
1985
11787110.7285259
15212900
19634355.8434478
588863.4755
748047
907230.5245
35432
0.0362417642
0.0465494
0.0568570358
1986
24457899.0726231
30055200
36933468.5844346
670489.355
840255
1010020.645
35579
0.0355706445
0.0453681
0.0551655555
1987
11139753.3573823
14470000
18795829.0711386
745693.35
930871
1116048.65
32628
0.03028082385
0.0383115
0.04634217615
1988
52274091.6508979
62165800
73929293.9884806
723300.195
903936
1084571.805
36418
0.0322957603
0.0404317
0.0485676397
1989
47522621.7257478
56775000
67828762.5544354
835199.74
1032580
1229960.26
33086
0.02709096785
0.0334977
0.03990443215
1990
25944867.9638991
31790700
38953700.1266018
956884.645
1161850
1366815.355
39180
0.0306893877
0.0375848
0.0444802123
1991
30406344.7283761
36911400
44808130.0837361
1080034.605
1295120
1510205.395
33419
0.0243114259
0.0296356
0.0349597741
1992
32701893.659491
39310300
47254134.6437139
1052361.93
1258260
1464158.07
46610
0.03443137205
0.0417495
0.04906762795
1993
20023229.4953569
24818800
30762911.3267087
1012357.155
1210680
1409002.845
49314
0.03619086065
0.0437612
0.05133153935
1994
26299415.9831992
31945500
38803712.2536081
1121779.725
1334470
1547160.275
61986
0.04488185795
0.0539249
0.06296794205
1995
20738400.7033467
25588800
31573634.5731969
985792.725
1179730
1373667.275
65547
0.05058296865
0.0607353
0.07088763135
1996
18014220.161001
22484200
28063343.576451
973175.65
1162400
1351624.35
61303
0.0508266831
0.0610573
0.0712879169
1997
34396014.0009498
41278400
49537900.1332231
810259.347
973824
1137388.653
69808
0.06422374145
0.0773426
0.09046145855
1998
18888660.8980073
23907000
30258611.3481606
766999.163
930069
1093138.837
62474
0.05889938085
0.0712291
0.08355881915
1999
29122490.6893467
35618900
43564475.674263
748796.524
907060
1065323.476
66502
0.0653861866
0.0793044
0.0932226134
2000
23088610.9147967
28798800
35921211.7394418
701678.922
842814
983949.078
58852
0.06753415115
0.0819824
0.09643064885
2001
35907304.3754435
43447900
52572033.6640194
689595.199
826120
962644.801
57806
0.06685758135
0.0810677
0.09527781865
2002
74791945.3296531
86606000
100286189.949203
696675.7095
834163
971650.2905
53969
0.0608453777
0.0736924
0.0865394223
2003
15021126.4951578
19580500
25523783.4774636
710565.5455
845130
979694.4545
53644
0.0569702463
0.068385
0.0797997537
2004
16173781.22661
20869300
26928006.2829986
751991.8885
885317
1018642.1115
61423
0.06084311665
0.072472
0.08410088335
2005
23317971.6079492
28779900
35521213.3343379
768799.956
895740
1022680.044
62911
0.0663211699
0.0784109
0.0905006301
2006
34094569.7952046
40602200
48351941.518613
686830.675
799982
913133.325
71318
0.0832406702
0.098051
0.1128613298
2007
24139700.0528978
29483000
36009034.3747105
670551.164
779083
887614.836
78678
0.095416448
0.112027
0.128637552
2008
33004070.0248079
39312900
46827682.3206443
640159.876
741938
843716.124
67914
0.08719600845
0.101722
0.11624799155
2009
26735502.3965472
32317000
39063731.5697078
640124.0075
737420
834715.9925
71248
0.0912751857
0.106112
0.1209488143
2010
17580510.8543891
22084500
27742375.8780159
779793.6865
887239
994684.3135
72590
0.09091915235
0.105327
0.11973484765
2011
24836689.1412535
30084400
36440892.6734396
691980.162
788187
884393.838
81850
0.1058066233
0.122185
0.1385633767
2012
18695117.1097484
23081400
28496800.6796921
700322.6785
796632
892941.3215
106007
0.1419205385
0.164093
0.1862654615
2013
21715989.7447014
26474800
32276448.9797672
700988.2035
793769
886549.7965
114396
0.162538927
0.188246
0.213953073
2014
38172117.9890861
44708700
52364604.3497378
642617.0925
733871
825124.9075
115366
0.1741356775
0.203582
0.2330283225
2015
20602911.9780777
25231400
30899687.7061549
607027.921
692815
778602.079
114942
0.187930565
0.220342
0.252753435
2016
25447514.4624454
30836500
37366703.6776143
564637.4195
647843
731048.5805
130029
0.221926564
0.263145
0.304363436
2017
17665612.0070459
22114800
27684542.0835088
545040.783
632513
719985.217
104358
0.1849197455
0.221837
0.2587542545
2018
24878125.0012724
30712700
37915636.3770082
551134.0085
644558
737981.9915
97366
0.177102774
0.21487
0.252637226
2019
33733748.2268932
41464700
50967397.2345392
485252.6495
578042
670831.3505
88907
0.1654956645
0.203824
0.2421523355
2020
21295889.1722487
27281100
34948454.6613748
494988.705
598247
701505.295
72956
0.130707911
0.162766
0.194824089
2021
11860052.3645563
16246400
22255004.0123599
475818.092
579865
683911.908
71924
0.1328628165
0.16728
0.2016971835
2022
20251115.2121892
27547400
37472467.0127422
461226.361
573215
685203.639
78614
0.1439697855
0.185243
0.2265162145
2023
16846661.945088
24436300
35445167.6917578
427160.921
548480
669799.079
66827
0.1172429745
0.155443
0.1936430255
2024
19566053.9259036
31410500
50425063.4280328
404351.268
536250
668148.732
55040
0.09468149
0.12896
0.16323851
2025
9692671.83925113
24418100
61514886.4522031
443390.958
603383
763375.042
67344
0.099267732
0.138778
0.178288268
2026
27646850
420396.525
597818
775239.475
Custom reference points
Custom fish data column names
Custom fish data
Sensivity data