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Stock Assessment Graphs
Stock assessment graphs
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Sprat (Sprattus sprattus) in Division 3.a and Subarea 4 (Skagerrak, Kattegat and North Sea)
Species:
Stock Assessment Graphs
Stock code:
spr.27.3a4
Assessment Year:
2021
Key:
14112
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
F
Fishing pressure units
Year-1
Stock size description
SSB
Stock size units
Fish reference points
Management plan
SSB
MP
F
MP
MSY approach
MSYB
trigger
F
MSY
Precautionary approach
B
lim
94000
B
pa
125000
F
lim
F
pa
Age and Length
Recruitment
0
F
Age 1-2
Fish data
Year
Low Recruitment
Recruitment
High Recruitment
Low SSB
SSB
High SSB
Landings
Low F
F
High F
1974
301825994
536170000
952463587
376404
607475
980398
443038.71359
0.723
1.135
1.784
1975
407579749
710021000
1236886331
380872
610393
978228
731781.70108
1.026
1.583
2.413
1976
191185461
329110000
566535718
309844
499002
803640
629980.446543
1.096
1.646
2.44
1977
374413479
632579000
1068754769
220597
338213
518539
385213.849575
0.925
1.428
2.162
1978
1049300000
248844
390121
611605
459295.084225
0.519
0.939
1.646
1979
307150311
537150000
939377602
370425
630106
1071834
464139.146397
0.285
0.609
1.224
1980
211296754
331153000
518996660
257093
432865
728812
387442.591238
1.536
2.165
3.036
1981
60593985
90046800
133815694
206544
304926
450169
280227.22865
0.674
1.058
1.646
1982
32674627
46704700
66759109
119770
178741
266747
163007.524139
0.649
0.954
1.396
1983
45362021
61661900
83818794
62341
84056
113334
115430.137984
1.266
1.571
1.948
1984
23004594
32596500
46187809
47229
61532
80166
113526.51257
0.639
0.918
1.309
1985
16958536
23169700
31655740
43959
57379
74895
62513.5726261
0.982
1.271
1.643
1986
53119795
73957600
102969648
17215
22533
29494
27519.7343095
0.783
1.066
1.449
1987
28959943
39337600
53434042
38678
52143
70296
53975.920849
0.225
0.349
0.538
1988
40773863
58120800
82847863
42637
54619
69968
103654.512482
0.961
1.222
1.551
1989
37378713
51217800
70180667
30591
40925
54749
58441.5498283
0.172
0.343
0.667
1990
51256488
69271000
93616860
29309
39137
52261
78254.0708401
1.125
1.436
1.828
1991
81127323
106179000
138966498
62176
81366
106479
125814.8808955
0.499
0.736
1.071
1992
75756980
100264000
132698924
89951
113659
143615
156472.418137
0.577
0.814
1.138
1993
90201353
134538000
200667428
124765
158825
202183
209083.009316
1.248
1.514
1.834
1994
89031745
118861000
158684269
88305
124251
174829
425103.88752
0.532
0.731
1
1995
26830718
35762400
47667352
134573
178926
237897
447604.053687
1.071
1.345
1.688
1996
45878459
60740900
80418066
85097
106678
133732
95522.3748355
1.079
1.341
1.663
1997
36109937
47922800
63600076
85334
108100
136940
125227.178548
0.722
0.964
1.279
1998
80628804
108113000
144965821
106546
133319
166819
189062.787241
1.382
1.652
1.97
1999
57845029
76081800
100068068
98222
127979
166750
243188.258789
0.606
0.846
1.169
2000
55711276
73216300
96221572
144150
182422
230855
222088.981342
1.127
1.414
1.768
2001
45732626
59548200
77537383
99212
125252
158126
153320.7024639
1.215
1.505
1.86
2002
60217300
79517900
105004649
86966
108990
136592
175008.209243
1.285
1.561
1.891
2003
77516276
102412000
135303427
107193
136243
173166
175253.2011106
0.942
1.216
1.558
2004
133165203
174458000
228555156
131139
166717
211947
231221.09837
1.595
1.892
2.239
2005
49672396
64052400
82595370
165931
212407
271900
280860.949022
0.995
1.256
1.578
2006
63662351
82060000
105774346
130767
164011
205707
78114.1088679
1.283
1.567
1.91
2007
44851839
58147300
75383943
105886
132225
165116
99904.0840826
1.323
1.601
1.933
2008
100290347
128823000
165473206
78298
97626
121726
69970.1726796
1.13
1.418
1.772
2009
82635969
106801000
138032550
136847
171358
214572
171229.703682
0.598
0.825
1.132
2010
82542585
111529000
150694551
140828
175073
217646
147207.906055
0.774
1.016
1.331
2011
68744869
89718700
117091578
120820
152787
193212
122537.2610802
0.658
0.901
1.231
2012
53902202
68928300
88143162
103526
127752
157647
96181.7805535
1.084
1.335
1.644
2013
116887493
155911000
207962710
83551
103778
128902
60313.34073249
0.978
1.293
1.704
2014
132586283
177282000
237044941
154118
198774
256369
190700.190225
0.408
0.585
0.834
2015
73256379
96607400
127401734
250098
322777
416576
297105.466545
1.01
1.273
1.601
2016
106030876
137568000
178485317
172521
219369
278939
227902.1210747
1.929
2.206
2.522
2017
129527578
167918000
217686883
140061
176860
223327
135543.699005
1.115
1.378
1.701
2018
125579589
167007000
222100886
159965
200477
251249
191542.751933
1.124
1.385
1.703
2019
114748429
158211000
218135627
167471
212573
269822
136794.40964333
0.802
1.097
1.494
2020
60517235
94106900
146340271
246414
319474
414196
179385.82608
1.308
1.671
2.128
2021
127373950
118781
161888
220639
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
custom1
custom2
custom3
custom4
custom5
Custom fish data column names
Custom fish data
Sensivity data