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Megrim (Lepidorhombus spp.) in Division 6.b (Rockall)
Species:
Stock Coordinator
Stock code:
lez.27.6b
Assessment Year:
2026
Key:
26027
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
F/Fmsy
Fishing pressure units
ratio
Stock size description
B/Bmsy
Stock size units
Fish reference points
Management plan
SSB
MP
F
MP
MSY approach
MSYB
trigger
0.5
F
MSY
1
Precautionary approach
B
lim
0.3
B
pa
F
lim
F
pa
Age and Length
Recruitment
0
F
Fish data
Year
Low SSB
SSB
High SSB
Landings
Discards
Low F
F
High F
1991
0.52
1.19
2.7
1045
209
0.77
1.3
2.2
1992
0.52
1.11
2.3
1073
215
0.81
1.31
2.1
1993
0.51
1.02
2
925
185
0.89
1.37
2.1
1994
0.51
0.97
1.84
1046
209
0.95
1.42
2.1
1995
0.49
0.89
1.64
816
163
0.85
1.25
1.84
1996
0.49
0.87
1.52
843
169
1.03
1.47
2.1
1997
0.5
0.84
1.41
1009
202
1.37
1.9
2.6
1998
0.47
0.76
1.24
1091
218
1.45
1.98
2.7
1999
0.42
0.66
1.03
866
173
1.49
2
2.8
2000
0.39
0.59
0.9
964
193
1.92
2.6
3.4
2001
0.34
0.5
0.72
824
165
1.41
1.91
2.6
2002
0.3
0.42
0.58
455
91
1.18
1.65
2.3
2003
0.31
0.42
0.57
632
126
1.49
2.2
3.1
2004
0.29
0.38
0.51
528
106
1.08
1.7
2.7
2005
0.27
0.36
0.48
382
87
0.77
1.32
2.3
2006
0.27
0.37
0.52
344
75
0.58
1.09
2
2007
0.28
0.41
0.6
106
22
0.44
0.89
1.81
2008
0.3
0.46
0.72
294
59
0.33
0.69
1.46
2009
0.32
0.53
0.87
226
44
0.178
0.38
0.82
2010
0.38
0.62
1.03
139
26
0.108
0.23
0.5
2011
0.46
0.75
1.23
155
7
0.116
0.24
0.49
2012
0.58
0.92
1.46
224
21
0.143
0.29
0.58
2013
0.69
1.08
1.68
278
15
0.149
0.29
0.58
2014
0.8
1.21
1.82
343
15
0.195
0.37
0.71
2015
0.91
1.33
1.93
453
85
0.24
0.44
0.84
2016
0.98
1.39
1.98
405
145
0.27
0.5
0.95
2017
1.04
1.44
1.99
586
233
0.39
0.72
1.35
2018
1.04
1.44
1.99
764
203
0.37
0.72
1.37
2019
1
1.4
1.95
783
34
0.36
0.71
1.37
2020
0.99
1.38
1.94
861
59
0.34
0.67
1.31
2021
0.96
1.36
1.91
566
65
0.21
0.41
0.8
2022
1
1.37
1.88
402
18
0.172
0.33
0.62
2023
1.07
1.43
1.92
439
12
0.21
0.38
0.7
2024
1.14
1.49
1.95
563
8
0.25
0.46
0.84
2025
1.18
1.51
1.95
619
31
0.27
0.49
0.89
2026
1.18
1.51
1.92
Custom reference points
Custom fish data column names
CustomName1
CustomName2
CustomName3
CustomName4
CustomName5
CustomName6
CustomName7
CustomName8
CustomName9
CustomName10
CustomName11
CustomName12
2025
2024
2023
2022
2021
2020
2025
2024
2023
2022
2021
2020
Custom fish data
Year
Custom1
Custom2
Custom3
Custom4
Custom5
Custom6
Custom7
Custom8
Custom9
Custom10
Custom11
Custom12
1991
1.3
1.32717749193082
1.33469328860001
1.33018016614947
1.31565660507044
1.33904857382022
1.19
1.14593267890388
1.13678155981548
1.14397332987596
1.18505129461015
1.14877564577452
1992
1.31
1.336634083573
1.34493309232335
1.33973699351931
1.33733270270052
1.35496463100781
1.11
1.06760602190098
1.05971058338416
1.0664395064818
1.09997656509764
1.06969289519082
1993
1.37
1.39389128009758
1.40172524255357
1.3966050157563
1.39447739370371
1.41208738812892
1.02
0.988423337134274
0.98184516308235
0.987481828836334
1.01839433273255
0.99146148286112
1994
1.42
1.44039607611418
1.44577353333901
1.44228908573061
1.42860226320216
1.44986799174839
0.97
0.93852242175841
0.932213535226787
0.937984318733035
0.962037151367312
0.939081862956664
1995
1.25
1.2735313598934
1.28342065380406
1.27732413008652
1.30410659943406
1.3078193184049
0.89
0.868800093030115
0.863700306269459
0.868459086362493
0.892838950415433
0.871241978535821
1996
1.47
1.49402174098851
1.50263405886398
1.49655051175673
1.513201283641
1.5235769149934
0.87
0.840691692065373
0.835232629615593
0.839754023144581
0.858059551022115
0.839223305360658
1997
1.9
1.92743418073916
1.93302945941783
1.92675693530818
1.91598648152065
1.94223273886173
0.84
0.812821576929647
0.807545337052568
0.812620797369022
0.826232626104795
0.809639819536313
1998
1.98
2.01712106811548
2.02553680463862
2.01618494311329
2.03087020653271
2.04680706548177
0.76
0.741708754899627
0.737392752632048
0.742655009084928
0.754916932237413
0.739962638974365
1999
2
2.07043768638677
2.08424877055488
2.06995587310739
2.12206363975752
2.12504081173611
0.66
0.640788992492874
0.637616407590483
0.641914280377895
0.655108218987886
0.64138972918206
2000
2.6
2.60722782610986
2.60731830874612
2.59732605953871
2.55290493168848
2.59812077884164
0.59
0.574006636815887
0.570604499229894
0.575204150490659
0.582032299677604
0.571640302573512
2001
1.91
1.95275028777129
1.965291874139
1.9487884096922
2.00301741917564
2.0028855976264
0.5
0.481167203309437
0.4786679850239
0.483179658662438
0.489665759414265
0.48067886076449
2002
1.65
1.69510681601066
1.71129861416562
1.69242407780021
1.77427349623837
1.76410833565651
0.42
0.403757055271272
0.40187692108475
0.405317848556844
0.413204402062758
0.404579705302869
2003
2.2
2.21041723484098
2.21552266490575
2.19589109929606
2.19120595735801
2.22691663297552
0.42
0.401218804402291
0.398155294752633
0.402771705582124
0.402678523295332
0.396412607468576
2004
1.7
1.76219761927876
1.77750963440128
1.7508216945984
1.81756456514596
1.8260819543838
0.38
0.368186516395107
0.365489660788089
0.370780510127195
0.370608083616717
0.364052132552155
2005
1.32
1.38337101295887
1.39828096427405
1.37341266617822
1.44132696031049
1.44995236278141
0.36
0.342463510528842
0.33938342797982
0.345169718070517
0.342707279122806
0.336226065867996
2006
1.09
1.1444841105793
1.15763944798729
1.13303381711265
1.19266808676281
1.20848069391919
0.37
0.352200315797454
0.348140678356688
0.355523617679693
0.34798267992742
0.341339922595796
2007
0.89
0.944139724761978
0.956848524733942
0.932873521706453
0.991331225542511
1.00844720642751
0.41
0.381775869635173
0.376601481195023
0.386280938761399
0.373626218258973
0.365642171488859
2008
0.69
0.737032246047765
0.747630416595028
0.727633621223418
0.774221014307415
0.790341127933378
0.46
0.429692292379088
0.423030655000491
0.435519362923048
0.416699651284317
0.406532982024326
2009
0.38
0.41029992208658
0.418510147327441
0.40688188843907
0.447501409993564
0.452355040385398
0.53
0.490478490374076
0.48185999454415
0.49705713204889
0.471159883624114
0.458590749468469
2010
0.23
0.250060373350347
0.25624423715607
0.249219923729166
0.282094060495093
0.282089411075009
0.62
0.57602069158824
0.564562802763057
0.581517056413949
0.546988694619333
0.532082728212564
2011
0.24
0.255093721246117
0.260397201305549
0.254160563241539
0.28090404425725
0.283631058102253
0.75
0.697313509116375
0.682462464566409
0.700926287167648
0.656171764002262
0.639076703254568
2012
0.29
0.305000838622011
0.309992830013172
0.303213285421074
0.328050265476984
0.333718309716311
0.92
0.852137588945256
0.834742892374261
0.856942912281565
0.801953898407193
0.781276621247099
2013
0.29
0.31177055272811
0.317429192173704
0.310429587357091
0.342361184107723
0.344770535548985
1.08
1.00373021409983
0.985058722840038
1.01043238654914
0.948920492460721
0.924459156576113
2014
0.37
0.389284660505203
0.39451317959235
0.387198377894917
0.418103844749421
0.422999384775777
1.21
1.1357478798909
1.11655570097899
1.14256637064208
1.07776678755332
1.05127908390287
2015
0.44
0.462200041827411
0.467361930971082
0.459526213247367
0.494096859179546
0.499068459926347
1.33
1.25191538866772
1.23348357187419
1.26012566315125
1.19362364943555
1.16668087274461
2016
0.5
0.522921478802251
0.529092121359672
0.520103342213573
0.567261334208753
0.568008823041545
1.39
1.32452464960407
1.30811560912053
1.33370114899348
1.27041170837085
1.24325348018267
2017
0.72
0.741632145496393
0.74449674679036
0.73537020019172
0.771326830352753
0.783200542846549
1.44
1.37714170546934
1.36266469474899
1.38690781993812
1.32438757652357
1.29929485150703
2018
0.72
0.732718857323278
0.736732867202461
0.726700646315758
0.767285494312725
0.771600205501222
1.44
1.38350740279007
1.37247448267918
1.39608492027397
1.33725534549379
1.31361384945267
2019
0.71
0.719594306683134
0.722101833982234
0.713551461249472
0.74978231473819
0.738788117265342
1.4
1.35239993184582
1.34428414531455
1.36520778219494
1.30988976838956
1.28752515137283
2020
0.67
0.672271223439026
0.671556125943702
0.665876304109991
0.689468229080278
0.828494393806832
1.38
1.34481143240494
1.33852999179093
1.35779633708151
1.30274915723461
1.28365912891096
2021
0.41
0.416515249244076
0.417376265793699
0.415686499433403
0.549365100425698
1.36
1.32409780711659
1.32013561145311
1.33642383650371
1.28336400613495
1.26777727284999
2022
0.33
0.329326105821605
0.334197537817347
0.321335744336173
1.37
1.3468314368373
1.34334964732123
1.35568701137907
1.30292701996382
2023
0.38
0.381379117331145
0.350794291202166
1.43
1.41412576758854
1.41197190502439
1.42087515204535
2024
0.46
0.438749734903024
1.49
1.47729300078752
1.47526861290124
2025
0.49
1.51
1.50588179278364
2026
1.51
Sensivity data