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Herring (Clupea harengus) in Subdivision 28.1 (Gulf of Riga)
Species:
Stock Assessment Graphs
Stock code:
her.27.28
Assessment Year:
2017
Key:
8607
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
60000
F
MSY
0.32
Precautionary approach
B
lim
40800
B
pa
57100
F
lim
0.88
F
pa
0.63
Age and Length
Recruitment
1
F
3-7
Fish data
Year
Recruitment
TBiomass
SSB
Catches
F
1977
943217
76734
54522
24186
0.6903
1978
1076477
66256
49356
16728
0.3751
1979
976935
66130
46738
17142
0.431
1980
1110326
69530
46712
14998
0.3498
1981
908405
65531
47221
16769
0.4526
1982
1688857
72903
42757
12777
0.4198
1983
1253569
76280
50855
15541
0.4679
1984
2026790
66151
39911
15843
0.7069
1985
1386925
77457
51928
15575
0.5382
1986
1119540
86724
64257
16927
0.51
1987
3923554
97525
51491
12884
0.4229
1988
560194
116201
96597
16791
0.5218
1989
1289408
85976
63207
16783
0.3616
1990
3634747
138871
77184
14931
0.2372
1991
3677640
141216
87044
14791
0.25
1992
4298780
166620
105792
20000
0.2668
1993
3239948
174966
120259
22200
0.2318
1994
2766616
169465
124292
24300
0.2332
1995
3455683
165929
115882
32656
0.3452
1996
4646234
166847
104926
32584
0.3674
1997
1577283
133008
102635
39843
0.4931
1998
2766111
119460
81016
29443
0.4441
1999
2885468
135577
83071
31403
0.428
2000
2635367
131681
82832
34069
0.4638
2001
6071746
156008
78487
38785
0.5367
2002
2261831
142934
99910
39701
0.4764
2003
6971167
155454
85469
40803
0.5535
2004
1014905
119817
91299
39115
0.5877
2005
3140972
123480
72436
32225
0.5135
2006
6869235
142101
69867
31232
0.4435
2007
1991318
125345
89840
33742
0.5759
2008
5393038
155308
88206
31137
0.3382
2009
2764422
147827
103986
32554
0.4018
2010
2786400
138464
97869
30174
0.3232
2011
1088428
127867
98851
29639
0.3617
2012
4871163
142770
84268
28115
0.3317
2013
5260676
167870
101167
26511
0.2606
2014
921667
146699
119556
26253
0.2776
2015
2149088
138063
102850
32851
0.3774
2016
3539800
131542
86654
30865
0.3998
2017
3003880
88633
Custom reference points
Custom fish data column names
Custom fish data
Sensivity data