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Megrim (Lepidorhombus spp.) in Division 6.b (Rockall)
Species:
Stock Assessment Graphs
Stock code:
lez.27.6b
Assessment Year:
2019
Key:
13168
Unit weights
tonnes
Unit recruitment
thousands
Fishing pressure description
F/Fmsy
Fishing pressure units
ratio
Stock size description
Biomass index
Stock size units
tonnes
Fish reference points
Management plan
SSB
MP
F
MP
MSY approach
MSYB
trigger
0.5
F
MSY
1
Precautionary approach
B
lim
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
1045
0.336959337133244
0.930021873082407
2.56689929345892
1992
1073
0.427815464070463
0.992808792193902
2.3039590212082
1993
925
0.539797906682786
1.07015757280011
2.12160368990542
1994
1046
0.666549509258129
1.16030344246672
2.01981107164652
1995
816
0.740609251576523
1.19583808542728
1.93088153235232
1996
843
0.768992880628119
1.20498487966537
1.8881690543561
1997
1009
0.910893265217402
1.38666101513446
2.11092654245808
1998
1091
1.0743609031991
1.67408120199259
2.60857209390239
1999
866
1.13375096908149
1.83127870180371
2.95795265021627
2000
964
1.17641796026205
2.00525852436148
3.41805538962418
2001
824
1.17737343405644
2.209826844704
4.14765149469165
2002
455
1.02078183426205
1.94847629099674
3.7192666730017
2003
632
0.975335400813217
1.90977958898472
3.73949112834581
2004
528
1.00648887389657
2.12149618102452
4.47172955690729
2005
13.569676470105
565.711652108981
1117.85362774786
382
87
0.878009876669037
1.89154090587885
4.07504185737272
2006
550.990080900069
929.345538891821
1307.70099688357
344
75
0.685545007542735
1.5191977694055
3.36660881076108
2007
933.607541798676
1267.12563495612
1600.64372811356
294
22
0.403959273033606
0.891986389902241
1.96960380138283
2008
924.736645696902
1727.6356870449
2530.53472839289
294
59
0.333521063504585
0.733637367318827
1.61376250444554
2009
1241.37132603404
1604.7742726137
1968.17721919337
226
44
0.345502959765605
0.75853241429915
1.66531546917236
2010
1379.54743585794
1990.69254777076
2601.83765968358
139
26
0.214663950505794
0.508148590365098
1.2028800796856
2011
662.652214151629
884.799871950437
1106.94752974925
155
7
0.137701778250431
0.354622120366629
0.913255078119733
2012
2107.14915131173
4320.21817832803
6533.28720534432
224
21
0.136714892170817
0.336447527929366
0.827978117470546
2013
2244.05745058774
3030.17274006488
3816.28802954201
278
15
0.158252005181588
0.367476079608488
0.853314110803665
2014
1888.19373048383
3317.92325008654
4747.65276968925
343
15
0.177931290268
0.400465895209869
0.90131945305791
2015
2187.09545175425
3261.66851499647
4336.24157823868
453
85
0.223480689303491
0.477722030812352
1.02119936820829
2016
2703.69868473614
4507.33163397869
6310.96458322123
405
145
0.272718884821517
0.564503092575423
1.16846965598209
2017
2060.98730873935
3015.49514105906
3970.00297337878
585.85
232.81375
0.337784574404615
0.680992264393236
1.37291782782219
2018
2085.18639857832
3968.6533021126
5852.12020564688
763.269
203.24244
0.419816410960645
0.855399161517034
1.74292311215208
2019
1424.33013004149
4150.43260900693
6095.03194739956
0.411691757240134
0.931783527466572
2.10890921858226
Custom reference points
CustomRefPointName
CustomRefPointValue
CustomRefPointNotes
CI_lower
0.95
CI_upper
0.95
custom3
custom4
custom5
Custom fish data column names
CustomName1
CustomName2
CustomName3
CI_lower
B/Bmsy
CI_upper
Custom fish data
Year
Custom1
Custom2
Custom3
1991
0.482736095172314
2.00744789968103
8.34792987355819
1992
0.482519711494134
1.61922673944733
5.43375777462534
1993
0.499179915771112
1.40998026033346
3.98262083813803
1994
0.524535970383315
1.27306942580754
3.08978955578887
1995
0.549047363174689
1.16267877681236
2.46212263042923
1996
0.57867105611094
1.08854912666833
2.04769046016225
1997
0.601401835244289
1.01894520423624
1.72638204340413
1998
0.600369930092258
0.921069037936182
1.41307572235391
1999
0.570496956870863
0.803945580881647
1.13292190122134
2000
0.520056518886615
0.698312106868544
0.93766692828535
2001
0.446442089605398
0.585450290962843
0.767741328984976
2002
0.371159596131977
0.494976484889816
0.660098036389609
2003
0.329918676564286
0.449636997596639
0.6127977709935
2004
0.278914281873177
0.394958706912073
0.559284304546968
2005
0.229429097780123
0.346962462349635
0.524706549624723
2006
0.202153518655758
0.331409936294634
0.543312560697221
2007
0.192691250722414
0.34712720085111
0.625338686209017
2008
0.201486279844556
0.406315700108612
0.819373151770524
2009
0.206634335902733
0.467604515297179
1.05816868126523
2010
0.221171456481815
0.543855088597421
1.33732608220911
2011
0.258833368190613
0.65433220964468
1.654155503873
2012
0.32431107496222
0.803514803880031
1.990792451752
2013
0.416936819861331
0.95025333139063
2.16575114214982
2014
0.530281204022966
1.08349511765945
2.21384740979998
2015
0.648243606408884
1.19058552300804
2.1866685202634
2016
0.748241955410063
1.25682576197212
2.11109653038784
2017
0.819419760186914
1.28389044590741
2.01163647398048
2018
0.850362483496532
1.27189047202861
1.90237152300681
2019
0.847708787844342
1.22860892867792
1.78065854839797
Sensivity data