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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:
2019
Key:
12893
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
0.57
F
pa
0.41
Age and Length
Recruitment
0
F
2-4
Fish data
Year
Recruitment
TBiomass
SSB
Landings
Catches
Discards
F
1986
71873
5172
4294
1124
1408
284
0.4484
1987
52282
7298
6027
1688
2021
333
0.4522
1988
57073
7820
6732
2223
2586
363
0.4805
1989
53544
7786
6725
2629
3037
408
0.6271
1990
40326
6731
5957
1945
2354
409
0.4598
1991
63225
6615
5747
1682
2129
447
0.3927
1992
58745
6363
5428
1916
2353
437
0.6193
1993
29491
6008
5305
1384
1822
438
0.5067
1994
47938
6391
5572
1403
1920
517
0.4825
1995
59485
5909
4977
1652
2058
406
0.6039
1996
42875
5202
4393
1098
1466
368
0.5498
1997
30298
4421
3872
896
1204
308
0.3583
1998
21439
5040
4546
1123
1501
378
0.4109
1999
36342
4562
4059
1125
1442
317
0.4244
2000
35990
4421
3818
1041
1414
373
0.4849
2001
37131
3823
3224
931
1221
290
0.5381
2002
39878
4158
3412
720
1028
308
0.421
2003
50960
4740
3750
876
1067
191
0.3237
2004
36894
5006
4078
1006
1354
348
0.4455
2005
52721
4921
4085
983
1358
375
0.3809
2006
51640
5670
4683
1092
1427
335
0.4526
2007
38014
5486
4623
1104
1396
292
0.3633
2008
27990
6019
5345
980
1182
202
0.2737
2009
63768
5995
5277
1134
1413
279
0.2987
2010
50025
6439
5767
1297
1562
265
0.2684
2011
47591
6056
5348
1128
1397
269
0.2627
2012
69411
7568
6109
952
1321
369
0.2303
2013
49438
6466
5616
931
1427
496
0.3015
2014
75544
7282
6394
1154
1942
788
0.3601
2015
51233
7758
6413
1148
1745
597
0.4304
2016
66747
7776
6716
1087
1419
332
0.2182
2017
18468
8183
7172
926
1173
246
0.188
2018
45233
7878
7450
814
906
92
0.0906
2019
45233
8854
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
custom1
custom2
custom3
custom4
custom5
Custom fish data column names
Custom fish data
Sensivity data