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Stock Assessment Graphs
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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:
2019
Key:
10404
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
Fish data
Year
Recruitment
TBiomass
SSB
Landings
F
1977
943221
76734
54522
24186
0.6903
1978
1076481
66256
49356
16728
0.3751
1979
976942
66130
46738
17142
0.431
1980
1110337
69530
46712
14998
0.3498
1981
908417
65532
47221
16769
0.4525
1982
1688965
72905
42757
12777
0.4198
1983
1253633
76283
50857
15541
0.4679
1984
2027111
66157
39913
15843
0.7069
1985
1387782
77476
51934
15575
0.5381
1986
1120150
86755
64278
16927
0.5099
1987
3927405
97590
51515
12884
0.4227
1988
560782
116297
96676
16791
0.5215
1989
1291682
86074
63272
16783
0.3612
1990
3642876
139113
77297
14931
0.2368
1991
3686985
141522
87221
14791
0.2495
1992
4314711
167089
106057
20000
0.2661
1993
3252321
175565
120663
22200
0.231
1994
2781537
170185
124799
24300
0.2322
1995
3464975
166685
116489
32656
0.3432
1996
4654652
167612
105555
32584
0.3644
1997
1587189
133755
103245
39843
0.4876
1998
2764262
120165
81694
29443
0.4375
1999
2889936
136313
83717
31403
0.4198
2000
2641219
132430
83474
34069
0.4543
2001
6076275
156552
78961
38785
0.5289
2002
2273578
143697
100416
39701
0.4684
2003
7040221
156605
86068
40803
0.5417
2004
1021556
120679
92027
39115
0.5843
2005
3164539
124884
73487
32225
0.5048
2006
6947996
144112
71109
31232
0.4333
2007
2002875
127294
91553
33742
0.5551
2008
5457706
158286
90401
31137
0.3191
2009
2793720
150764
106457
32554
0.3844
2010
2827451
141524
100381
30174
0.3095
2011
1146369
131509
101608
29639
0.348
2012
5502721
152266
87579
28115
0.3183
2013
5733345
182693
110321
26511
0.2487
2014
1015152
162758
133363
26253
0.2562
2015
2416008
156370
117640
32851
0.3368
2016
4059037
153567
103000
30865
0.3319
2017
2957179
151820
109734
28058
0.2899
2018
5382282
177796
110182
25747
0.2536
2019
3099173
109238
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
custom1
custom2
custom3
custom4
custom5
Custom fish data column names
Custom fish data
Sensivity data