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Megrim (Lepidorhombus spp.) in Division 6.b (Rockall)
Species:
Stock Assessment Graphs
Stock code:
lez.27.6b
Assessment Year:
2022
Key:
17605
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
F/Fmsy
Fishing pressure units
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
1.7
F
pa
Age and Length
Recruitment
0
F
Fish data
Year
Low SSB
SSB
High SSB
Landings
Discards
Low F
F
High F
1991
0.524970745462098
1.18505129461015
2.67509491337662
1045
209
0.675605378294733
1.24595431434143
2.29779424986871
1992
0.523999321349727
1.09997656509764
2.30906490612888
1073.33333333333
215
0.784010653166621
1.32575017350911
2.24182352045911
1993
0.510658912423441
1.01839433273255
2.03095841805612
925
185
0.819804056780485
1.32803974140642
2.15135499777978
1994
0.505125328632745
0.962037151367312
1.83224920262083
1045.83333333333
209
0.907188690467789
1.4147509320975
2.20628874775619
1995
0.485627380626936
0.892838950415433
1.64150833165505
815.833333333333
163
0.927639884365422
1.40841783039481
2.13837375732392
1996
0.482757110839625
0.858059551022115
1.52512759847232
843.333333333333
169
0.86823220856461
1.30986957154928
1.97615139998923
1997
0.482193455206734
0.826232626104795
1.41573956483367
1009.16666666667
202
1.05285987213553
1.53692008355922
2.24353060246904
1998
0.456154360020431
0.754916932237413
1.2493568505039
1090.83333333333
218
1.36800667465043
1.94221877516965
2.75745275262304
1999
0.408721749082214
0.655108218987886
1.05002187808497
865.833333333333
173
1.43677482485458
2.01304982207687
2.8204625499155
2000
0.373825211696289
0.582032299677604
0.906203186058046
964.166666666667
193
1.5476698471079
2.15912740566578
3.01216125817048
2001
0.325550858213647
0.489665759414265
0.736513358491579
824.166666666667
165
1.85917348352018
2.56267151682279
3.53236820627424
2002
0.283098599577609
0.413204402062758
0.603103929651319
455
91
1.34960634950742
1.93127288152385
2.76363173918879
2003
0.278625515480829
0.402678523295332
0.581963905364103
631.666666666667
126
1.23613581603609
1.82396463886006
2.69132805687976
2004
0.255599761688527
0.370608083616717
0.537364944062156
528.333333333333
106
1.42922018966976
2.17721888815944
3.31669124269335
2005
0.225902220352496
0.342707279122806
0.519907590905888
382
87
1.04299050093657
1.78566334254636
3.05716453798054
2006
0.21096314532926
0.34798267992742
0.573995734375668
344
75
0.747329361023894
1.42854372851313
2.73070655417345
2007
0.204898032392037
0.373626218258973
0.681297664700888
106
22
0.54992087862211
1.17463322618293
2.50902133323267
2008
0.208505203242545
0.416699651284317
0.832778255315218
294
59
0.41514507311529
0.983781170918693
2.33129441954229
2009
0.21913564724589
0.471159883624114
1.01303297170813
226
44
0.296396425821824
0.755080143027686
1.92359277212556
2010
0.248584424421388
0.546988694619333
1.2036016847708
139
26
0.158541765165652
0.428318374986647
1.15715016897609
2011
0.301928321187786
0.656171764002262
1.42603841262725
155
7
0.100912736889032
0.278434248260089
0.768244257307293
2012
0.377708147640392
0.801953898407193
1.70271692360422
224
21
0.110823803706367
0.285455481881425
0.735264712191746
2013
0.461365767579828
0.948920492460721
1.95170548897756
278
15
0.133398770319117
0.328404432388341
0.80847425320571
2014
0.549653695136858
1.07776678755332
2.11329653312669
343
15
0.141568580054847
0.34392713739006
0.835537629801008
2015
0.638986077301541
1.19362364943555
2.22968460049795
453
85
0.188112681455516
0.427695008335574
0.972411954046931
2016
0.713097159136892
1.27041170837085
2.2632903358067
405
145
0.221392583907684
0.491703379108535
1.09205199541628
2017
0.77597253281888
1.32438757652357
2.2603924477561
586
233
0.266749432738607
0.581779843701451
1.26886037980428
2018
0.799067792851537
1.33725534549379
2.23792258310173
764
203
0.371220236984627
0.780357690599217
1.6404227588017
2019
0.795139320826494
1.30988976838956
2.15787492882152
757
34
0.349155973181179
0.756235829297937
1.63792881531825
2020
0.799620478936153
1.30274915723461
2.1224511019696
861
59
0.354741461659118
0.760206876098633
1.62911460015063
2021
0.800305408093927
1.28336400613495
2.0579933055375
566
65
0.312213438990054
0.671071559488726
1.44240119647437
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
custom1
custom2
custom3
custom4
custom5
Custom fish data column names
Custom fish data
Sensivity data