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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:
2025
Key:
19524
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
F
Fishing pressure units
Stock size description
SSB
Stock size units
tonnes
Fish reference points
Management plan
SSB
MP
F
MP
MSY approach
MSYB
trigger
2932
F
MSY
0.176
Precautionary approach
B
lim
2321
B
pa
2932
F
lim
F
pa
0.46
Age and Length
Recruitment
0
F
2-4
Fish data
Year
Low Recruitment
Recruitment
High Recruitment
TBiomass
Low SSB
SSB
High SSB
Landings
Catches
Discards
Low F
F
High F
1986
54166.953067887
62268.8418122688
71582.5506334431
5026.050139
2736.02381277688
3035.97476097628
3368.80940372014
1124
1408
284
0.366706506942535
0.427166
0.497593547159485
1987
35885.0834869031
41446.7065398173
47870.2936172541
6804.406833
3448.2754498442
3804.89121889788
4198.38768631443
1688
2021
333
0.331245752541847
0.384228
0.445684676259658
1988
45866.8428576144
53099.819964362
61473.4022352615
7466.682461
4349.04053582248
4808.13995323261
5315.70345676246
2223
2586
363
0.401565191712482
0.460958666666667
0.529136729876845
1989
46504.9493954007
53552.4968803494
61668.0581186368
7587.419826
4518.46048032408
5012.5707639608
5560.71382567729
2629
3037
408
0.519981361857358
0.592888666666667
0.676018405363933
1990
29530.4350037282
34063.7836414429
39293.0668249399
6484.509835
3868.79058619348
4333.33523687189
4853.66004097707
1945
2354
409
0.410132813787964
0.471566333333333
0.54220193863447
1991
63367.7951111024
73567.0188887464
85407.8362469162
6730.279835
3911.57092098261
4364.13840334471
4869.06779610779
1682
2129
447
0.386837250114283
0.445066666666667
0.512061177457078
1992
54961.4027723143
63406.5512800573
73149.3474044974
7044.081382
4040.02196353984
4550.05931082993
5124.48692579143
1916
2353
437
0.55642938760381
0.630359
0.714111220099546
1993
17076.5677366934
19761.1833935192
22867.8488050733
6301.240631
3490.13610791846
3899.81111282865
4357.57410183418
1384
1822
438
0.440661198728371
0.504181
0.576856962887924
1994
41048.0855778449
47479.6987372945
54919.0482442616
6300.702926
3586.04904872921
3955.79739659906
4363.66955116947
1403
1920
517
0.452198885729277
0.516939
0.590947784601537
1995
49247.4838035836
56544.5771229343
64922.8946348484
5642.815862
3267.33126315076
3627.60373145703
4027.60166405379
1652
2058
406
0.498806088135006
0.568416333333333
0.647740947204843
1996
37804.3778877169
43112.2305030362
49165.322187482
4777.091472
2450.30868617096
2763.78113579887
3117.35668640763
1098
1466
368
0.435784221470352
0.499893
0.5734329035729
1997
24659.8716823397
28284.2843454542
32441.3991783838
4006.996553
2216.28339326923
2509.00713055794
2840.39342635902
896
1204
308
0.299482396459216
0.347500333333333
0.403217294553814
1998
16103.4493504937
18522.2619090683
21304.391299098
5112.687908
3228.99431878611
3622.3283328044
4063.57560751925
1123
1501
378
0.379271058512016
0.439470666666667
0.509225427371558
1999
25469.4685996455
29374.5506804321
33878.3757620009
4592.789436
3029.94543957116
3427.46591250178
3877.13997352518
1125
1442
317
0.363152806811061
0.42054
0.48699579979293
2000
29029.1538901247
33483.3574117413
38621.0093413644
4074.841097
2442.46357850278
2789.3254480809
3185.44625344261
1041
1414
373
0.403531833951395
0.465212
0.536320029140669
2001
25983.6690190102
29642.2379501111
33815.9430082087
3850.569779
2083.57840127742
2427.01759316741
2827.06635561818
931
1221
290
0.483283843983748
0.559782333333333
0.648389687784905
2002
32378.0483299818
36960.6690451852
42191.8900838359
4121.276947
2087.52118210763
2447.1012526261
2868.61977350487
720
1028
308
0.296979182336368
0.350140666666667
0.412818452422429
2003
35306.4570670778
40631.4560885298
46759.5834024806
4883.263201
2459.09509033203
2831.47075559993
3260.2344949317
876
1067
191
0.261998320220791
0.308623333333333
0.363545696772063
2004
32216.6781824201
37037.2723474306
42579.1739039775
5002.441886
2562.60507137037
2926.8013035568
3342.756933639
1006
1354
348
0.337211453688369
0.395586333333333
0.464066523863477
2005
53616.3205934831
61564.8320073436
70691.6942106081
4992.36481
2616.98875285175
2973.27574664735
3378.06903295552
983
1358
375
0.306946451652642
0.362244333333333
0.427504394742469
2006
45688.1879323085
52494.9393068539
60315.7791443413
6186.482412
3135.52844139056
3595.56468649459
4123.0962041708
1092
1427
335
0.315808975250007
0.372157666666667
0.438560458103303
2007
32880.1690609209
37799.4482046146
43454.7122287005
6024.129689
3116.77067149652
3587.08850641529
4128.37687114095
1104
1396
292
0.299597541782745
0.359592666666667
0.431601958917981
2008
24425.8353020933
28134.6263330112
32406.555972738
6653.793251
3883.25797404998
4526.60796353762
5276.54350869518
980
1182
202
0.19976722056742
0.240263666666667
0.288969478356579
2009
50503.7115351635
58103.2576081978
66846.3453885769
6822.660741
4271.49482251555
5025.68597368083
5913.03994398331
1134
1413
279
0.240569974488604
0.287144
0.34273469459883
2010
36165.4133028132
41471.2381109291
47555.480039809
6998.92713
4512.71787529205
5369.63855609841
6389.28003476676
1297
1562
265
0.219902745049961
0.262953666666667
0.314432777079409
2011
39778.4156383712
45827.3662792961
52796.1575742327
6763.601076
4024.58181314442
4843.33256097592
5828.64789071884
1128
1397
269
0.225555820310889
0.271001
0.325602513381271
2012
49221.0649701457
57443.1423440355
67038.6673745989
8141.363832
4354.82606273509
5201.59209529528
6213.00596994343
952
1321
369
0.194529168606208
0.234454666666667
0.282574541985801
2013
39141.9777340099
46381.7180717783
54960.528206032
7317.464613
4376.10859143134
5267.30452091644
6339.99278957383
931
1427
496
0.235363839636033
0.282623
0.33937141853447
2014
64144.5937112885
76831.6464292494
92028.0502453371
7913.379598
4598.80571174489
5571.75666221723
6750.55095797538
1154
1942
788
0.249153022096752
0.29944
0.359876484119793
2015
47260.4457552111
56690.146540192
68001.3204148435
8654.926765
4536.62860757978
5578.66187673989
6860.04322306511
1148
1745
597
0.258805338620788
0.314580333333333
0.382375366163186
2016
63085.8347489758
75931.1526255137
91391.9893741701
9179.199927
4881.45764699985
6058.83458300552
7520.18744376189
1087
1419
332
0.158074169207134
0.197718333333333
0.247305043779074
2017
43026.4943128483
51640.731486348
61979.6056135757
9854.258428
5272.66932972159
6604.152040451
8271.86789953618
927
1173
246
0.136999049681552
0.172442333333333
0.217055216036645
2018
50012.4985494733
60151.4123661163
72345.7638505981
9889.928968
6025.40463374225
7608.95032304649
9608.67004588724
814
906
92
0.0831807257315368
0.105694866666667
0.134302805625185
2019
44594.9372649048
54030.8625170294
65463.3526445519
11874.72801
7613.70597796476
9658.35177695182
12252.0831927744
742
943
201
0.0891192869262097
0.1118957
0.14049313128882
2020
52260.2749996088
64437.7258431118
79452.7107226878
13111.00371
8470.16583125275
10707.0513943211
13534.6759254274
711
792
81
0.0644272450991831
0.0804108333333333
0.100359748541275
2021
32273.5117052871
41781.3541985687
54090.2265178744
15256.73333
10057.9249344227
12702.5073509483
16042.4435510223
722
831
109
0.0655097460238193
0.0812556666666667
0.100786276335796
2022
25710.9337268478
38100.3070956083
56459.769847403
16734.83401
11275.2410181383
14094.5732268998
17618.8690005708
644
763
119
0.0602642415385914
0.0746166333333333
0.0923871574229597
2023
19077.0584252412
33836.9823236169
60016.6622781777
17644.48573
12543.8181400614
15608.9773629533
19423.1271210055
707
786
79
0.0531588451959873
0.0660619
0.0820968667682689
2024
9896.57431585637
23044.1710407034
53658.3470203792
18876.99383
13983.9531097623
17396.9789417981
21643.0128108827
685
736
51
0.0520311488444648
0.0656636
0.0828678293813743
2025
44048.8696165334
15943
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
custom1
custom2
custom3
custom4
custom5
Custom fish data column names
Custom fish data
Sensivity data