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Stock Assessment Graphs
Stock assessment graphs
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Four-spot megrim (Lepidorhombus boscii) in divisions 8.c and 9.a (southern Bay of Biscay and Atlantic Iberian waters East)
Species:
Stock Assessment Graphs
Stock code:
ldb.27.8c9a
Assessment Year:
2021
Key:
16698
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
4600
F
MSY
0.193
Precautionary approach
B
lim
3300
B
pa
4600
F
lim
F
pa
0.58
Age and Length
Recruitment
0
F
Fish data
Year
Recruitment
TBiomass
SSB
Landings
Catches
Discards
F
1986
71718
5156
4280
1124
1408
284
0.4511
1987
52147
7271
6004
1688
2021
333
0.454
1988
56895
7783
6698
2223
2586
363
0.483
1989
53386
7745
6688
2629
3037
408
0.6306
1990
40227
6679
5908
1945
2354
409
0.4631
1991
62747
6567
5703
1682
2129
447
0.3955
1992
58378
6313
5383
1916
2353
437
0.6249
1993
29393
5947
5249
1384
1822
438
0.5116
1994
47513
6322
5509
1402.63306
1920
517
0.4882
1995
58876
5837
4913
1652.14742
2058
406
0.6124
1996
42636
5110
4309
1097.6869
1466
368
0.5582
1997
30047
4328
3784
895.594196893958
1204
308
0.3645
1998
21255
4946
4457
1123.018
1501
378
0.4195
1999
35958
4470
3973
1124.74786575655
1442
317
0.4328
2000
35716
4306
3710
1040.560968
1414
373
0.4936
2001
36690
3725
3133
930.78478
1221
290
0.5535
2002
39523
4052
3314
719.623077
1028
308
0.4323
2003
50457
4644
3665
875.53158
1067
191
0.3313
2004
36385
4902
3985
1005.9341857
1354
348
0.4557
2005
51826
4814
3990
982.760944
1358
375
0.39
2006
50661
5532
4563
1091.7805145
1427
335
0.4637
2007
36991
5338
4493
1104
1396
292
0.3752
2008
27341
5831
5174
979.8569522
1182
202
0.2825
2009
62312
5798
5098
1134.292347885
1413
279
0.3089
2010
49092
6191
5534
1297.367005286
1562
265
0.2786
2011
46845
5813
5121
1127.9455069676
1397
269
0.2747
2012
68109
7292
5861
951.596891354
1321
369
0.2397
2013
42880
6193
5383
931.118959575
1427
496
0.313
2014
56411
6869
6084
1154.3457184
1942
788
0.3725
2015
45070
6881
5794
1147.59391567
1745
597
0.4708
2016
58781
6538
5656
1086.798213591
1419
332
0.2705
2017
30467
6697
5809
926.4765
1173
246
0.2715
2018
46848
6374
5901
813.72863
906
92
0.1295
2019
36792
6692
6132
742.37807
943
201
0.146
2020
43194
7924
7353
711
792
81
0.108
2021
43194
8490
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
custom1
custom2
custom3
custom4
custom5
Custom fish data column names
Custom fish data
Sensivity data