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Stock Assessment Graphs
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Herring (Clupea harengus) in Division 5.a; summer spawners (Iceland grounds)
Species:
Stock Assessment Graphs
Stock code:
her.27.5a
Assessment Year:
2025
Key:
19539
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
Harvest Rate
Fishing pressure units
Stock size description
SSB
Stock size units
1000t
Fish reference points
Management plan
SSB
MP
F
MP
MSY approach
MSYB
trigger
234000
F
MSY
Precautionary approach
B
lim
200000
B
pa
273000
F
lim
F
pa
Age and Length
Recruitment
2
F
5-10
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
1980
138594
227061
371999
221277
258670
302381
176940
209005
246879
53300
53300
0
0.2193
0.2416
0.2662
1981
597969
935562
1463748
242526
284353
333394
152309
179242
210938
39500
39500
0
0.1739
0.1947
0.218
1982
187742
297613
471783
281264
335063
399154
155031
179383
207561
56500
56500
0
0.2626
0.2949
0.331
1983
196429
312455
497015
289823
342067
403728
187652
220762
259713
58900
58900
0
0.1779
0.1969
0.2181
1984
321304
503438
788816
288823
339477
399016
213727
254606
303304
50300
50300
0
0.1537
0.1741
0.1972
1985
433749
686394
1086195
351006
405872
469314
237548
278168
325734
49400
49400
0
0.1403
0.1568
0.1753
1986
321109
503609
789830
361699
417330
481518
253280
287531
326413
65500
65500
0
0.1927
0.2167
0.2436
1987
185127
288366
449176
377251
438331
509301
281349
324289
373784
75400
75400
0
0.1966
0.2176
0.2409
1988
373798
577675
892751
399758
460921
531442
305072
353472
409551
92800
92800
0
0.2224
0.2446
0.269
1989
234937
345106
506937
392415
448422
512421
302866
347852
399520
101000
101000
0
0.2443
0.2756
0.3108
1990
568592
877178
1353242
413830
471328
536814
299394
340604
387486
105100
105100
0
0.2523
0.2845
0.3207
1991
596978
903006
1365913
430910
493944
566198
279759
316065
357082
109500
109500
0
0.286
0.3212
0.3607
1992
434854
666388
1021201
472239
544741
628373
309886
352441
400840
108500
108500
0
0.2563
0.2856
0.3183
1993
557915
825252
1220689
535092
615540
708084
381860
441145
509634
102700
102700
0
0.1929
0.2138
0.2371
1994
174247
272188
425178
522702
597143
682184
402929
461660
528953
134000
134000
0
0.2377
0.2615
0.2877
1995
170408
266016
415266
453743
516253
587373
382379
436824
499022
125850
125850
0
0.2445
0.2675
0.2927
1996
525884
775019
1142179
387340
440028
499884
293621
335911
384293
95851
95851
0
0.2522
0.2793
0.3093
1997
238033
350144
515058
360983
413561
473798
255982
293206
335843
64931
64931
0
0.2032
0.2274
0.2546
1998
547561
817382
1220161
394732
450530
514215
292909
335690
384720
87238
87238
0
0.1964
0.2186
0.2433
1999
319623
490360
752301
411510
470395
537705
293278
335044
382759
92896
92896
0
0.2485
0.276
0.3066
2000
385583
573192
852084
427719
488641
558242
316451
361735
413499
100330
100330
0
0.2365
0.2607
0.2874
2001
1113992
1670022
2503587
449056
521939
606651
279091
319261
365213
95278
95278
0
0.2715
0.3017
0.3354
2002
661968
986285
1469494
535277
637687
759690
284499
327078
376030
96208
96208
0
0.2888
0.3347
0.388
2003
350816
545218
847345
548644
649849
769722
359794
425820
503964
125720
125720
0
0.2158
0.2466
0.2818
2004
754045
1121916
1669258
629126
741447
873821
449865
536301
639343
114240
114240
0
0.1747
0.194
0.2154
2005
444205
686901
1062196
697367
820002
964202
473444
560170
662782
103040
103040
0
0.1737
0.1937
0.2161
2006
470727
730837
1134677
770559
899307
1049567
558800
655383
768658
135300
135300
0
0.1472
0.1682
0.1922
2007
367014
573544
896294
673458
780959
905621
515027
598998
696659
158920
158920
0
0.2227
0.2464
0.2725
2008
305194
477340
746585
648867
758334
886270
501348
588328
690398
151780
151780
0
0.2235
0.2455
0.2697
2009
311740
462321
685639
585421
692875
820053
428042
511460
611135
46332
46332
0
0.07422
0.08173
0.09
2010
447735
663315
982695
585140
684416
800536
421212
497018
586468
43533
43533
0
0.07434
0.08152
0.08939
2011
306356
479646
750960
601525
698380
810831
430688
501018
582832
49446
49446
0
0.08588
0.0948
0.1047
2012
384606
605688
953854
598457
692113
800425
451174
520550
600593
71976
71976
0
0.1965
0.2173
0.2402
2013
211708
335983
533209
519274
609836
716192
381979
447827
525025
72058
72058
0
0.1207
0.1345
0.1498
2014
239347
358980
538407
526064
616507
722501
417938
491201
577305
94975
94975
0
0.1655
0.1815
0.1991
2015
307608
459912
687626
467893
550886
648600
350655
415942
493385
69729
69729
0
0.1458
0.16
0.1757
2016
186161
279624
420012
442936
524679
621507
322852
384491
457898
60403
60403
0
0.1336
0.1468
0.1614
2017
282510
422467
631760
414772
493251
586580
310477
371962
445622
35034
35034
0
0.08009
0.08799
0.09668
2018
215643
327190
496439
418408
496849
589996
310514
371166
443664
40683
40683
0
0.09235
0.1014
0.1114
2019
635859
950338
1420349
433199
515566
613594
283417
338821
405056
30038
30038
0
0.07283
0.08011
0.08812
2020
560557
846579
1278542
470349
560408
667711
299635
356001
422970
36099
36099
0
0.08671
0.09559
0.1054
2021
557207
908083
1479909
559567
674404
812807
365074
435395
519261
70084
70084
0
0.1357
0.1488
0.1632
2022
252276
440637
769636
554494
681646
837955
402007
489076
595003
72804
72804
0
0.1265
0.1388
0.1522
2023
173540
341449
671818
577327
724752
909823
468165
585438
732087
94422
94422
0
0.1343
0.1465
0.1598
2024
149645
380797
969001
512172
662756
857612
420251
545270
707481
82210
82210
0
0.124
0.1368
0.1509
2025
199915
545116
1486388
481208
648030
872684
380279
517273
703618
0
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
HR_{MSY}
0.22
HR_{pa}
0.25
HR_{MGT}
0.19
MGT B_{trigger}
273000
Custom fish data column names
CustomName1
B_{4+}
Custom fish data
Year
Custom1
1980
219790
1981
198967
1982
190948
1983
289937
1984
280201
1985
302870
1986
296049
1987
344285
1988
378236
1989
358852
1990
363503
1991
317253
1992
362070
1993
474149
1994
480722
1995
468905
1996
351303
1997
293388
1998
365260
1999
341299
2000
383963
2001
333524
2002
305728
2003
455235
2004
576415
2005
564594
2006
701835
2007
625151
2008
619370
2009
561447
2010
544954
2011
538666
2012
564047
2013
474217
2014
532297
2015
440347
2016
401704
2017
406015
2018
397474
2019
364920
2020
366457
2021
463969
2022
518829
2023
631687
2024
578975
2025
544037
Sensivity data