ICES Marine Data
Stock Assessment Graphs
 
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Megrim (Lepidorhombus spp.) in divisions 4.a and 6.a (northern North Sea, West of Scotland)
Species: Stock Assessment Graphs
Stock code: lez.27.4a6a
Assessment Year: 2018
Key: 9871
   
   
Unit weights tonnes
Unit recruitment thousands
Fishing pressure description F/Fmsy
Fishing pressure units ratio
Stock size description B/Bmsy
Stock size units ratio
       
Fish reference points      
       
Management plan SSBMP  
FMP  
MSY approach MSYBtrigger 0.5  
FMSY 1  
Precautionary approach Blim 0.3  
Bpa 0.5  
Flim  
Fpa  
       
Age and Length      
       
Recruitment 0  
F  
       
       
 
Fish data
YearLow SSBSSBHigh SSBLandingsCatchesDiscardsLow FFHigh F
19850.4379155115768262.09308439615943.6987856185440644996427 0.3566044456294830.7828249792403081.65521019428974
19860.3985212619014791.513617412567932.2859703268457928584051 0.3001051165932910.5886967974517331.09642024218359
19870.383065248607241.413775023437762.074553445620946146488 0.5426799769573261.033341816932991.92492388632127
19880.3690863392492281.344241895373942.1185649964649552127273 0.577266240593311.253517284997912.28685830985754
19890.3259244912597681.077451123119221.6086176147487734514778 0.4629731309110810.9614213823239691.78075362675859
19900.3086681732242670.9792559071987611.4297954350906630474187 0.436796040499530.9065194060236781.74020785559031
19910.3175138984704210.915636023647181.3297431288255333104514 0.535183770610561.050149150055771.99725130872479
19920.3297894082361950.9784551830138841.429594420168635744837 0.5355248635339711.061435727134311.92363690187338
19930.3379973492010081.057794186151371.5547387509172338025107 0.5202520137417621.049043418159991.94922103361377
19940.3535661537753911.169185663975571.854914066685939005200 0.4468219292001780.9784611163671851.811423893467
19950.3525218746398771.188669739070731.8630706795769846706181 0.5398039159458971.169477055475232.18895529829989
19960.3382588920421231.148281765467031.8408275437956352536902 0.6041639955542531.383499422443932.52986090201961
19970.3074459920256010.9583177792441071.4211921987391748566334 0.6984419927487781.484855733607642.70159266588637
19980.2771003354207110.9199401370668831.4225975981142842535507 0.5990779016564971.330775625572242.45007613195425
19990.2650779091948370.8903061759391081.3866562951669237594833 0.527323188414541.195067569546772.21408790258448
20000.2494548375734840.8274777557251341.2864153976066734944460 0.5121915150473711.171889395765172.13711238169472
20010.2366352409492970.7646565795634151.1811848214967735714527 0.5821858226634381.288860180389962.4110806423298
20020.2407827803863560.7754400189899061.1945941811109728033528 0.4457484220964180.9641165599652871.76968305644768
20030.2361184766286270.8078246529453241.3300792318908423692961 0.3379525067088290.769107335965331.41841384279577
20040.2447663339420520.8077481732271551.2400598879335820672566 0.3042313055241490.6520107935263241.19625922040657
20050.2365008124422650.7960320632993611.1682440850153315271883 0.240580878101360.4684935363858020.909568178529046
20060.2634976786902610.8975264452593751.2885496089802320542515 0.2968412792074570.5671678069993581.11120559120415
20070.3115402114344941.020573646308751.4728096787450823482856 0.2991018752966860.575386770274191.08703025678483
20080.3298304491046641.131499157671821.6185301474131628943496 0.333749558717390.6468141304798261.24849202639016
20090.3813784687376831.244803120103591.8073286013882928713445 0.3011921259117510.5819699286203261.11211504064394
20100.3918211993715551.264575337809991.7568785745421931973811 0.3439108621049470.634953913842331.14530534879476
20110.4260526379568371.302033559466641.8488871185952532573857 0.3410511403151940.6261566816484821.13299016277027
20120.466443593939751.421919382162732.0602243766692325453186 0.2582268082660530.4720382414759870.849046542748094
20130.5255179391284231.61729871345062.4907216137572273730643270.2143272037325910.4070136494963060.733194458887015
20140.5189066470355211.623919541052132.34604159606574250028093090.2025464180737180.3674677290267920.64551740778452
20150.495333126008091.506225317403892.093895299748247126231520.2084866851820040.3614263397369310.615733661355582
20160.5860129570754031.60754508171762.26067310359121279229591670.2216760532734760.3857483388602070.64234441447324
20170.6641266398094091.782045906044692.709266425563932594.485872787.70876193.222890.1782528752076670.33335197517560.560147488421997
 
 
 
 
Custom reference points
CustomRefPointNameCustomRefPointValueCustomRefPointNotes
custom1  
custom2  
custom3  
custom4  
custom5  
 
Custom fish data column names
 
Custom fish data
 
 
 
 
Sensivity data