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Megrim (Lepidorhombus spp.) in divisions 4.a and 6.a (northern North Sea, West of Scotland)
 
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Species: Lepidorhombus
Stock code: lez.27.4a6a
Assessment Year:2018
Purpose:Advice
Assessment Key: 9871
Stock Key: 169138

 
 
 
 
 
 
 
 
       

 



YearB/BmsyHighLowLandingsDiscardsF/FmsyHighLow
         
 Relative  tonnestonnesRelative   
19852.0933.6990.4384499 0.781.660.36
19861.5142.2860.3992858 0.591.100.30
19871.4142.0750.3834614 1.031.920.54
19881.3442.1190.3695212 1.252.30.58
19891.0771.6090.3263451 0.961.780.46
19900.9791.430.3093047 0.911.740.44
19910.9161.330.3183310 1.052.000.54
19920.9781.430.333574 1.061.920.54
19931.0581.5550.3383802 1.051.950.52
19941.1691.8550.3543900 0.981.810.45
19951.1891.8630.3534670 1.172.20.54
19961.1481.8410.3385253 1.382.50.60
19970.9581.4210.3074856 1.482.70.70
19980.921.4230.2774253 1.332.50.60
19990.891.3870.2653759 1.202.20.53
20000.8271.2860.2493494 1.172.10.51
20010.7651.1810.2373571 1.292.40.58
20020.7751.1950.2412803 0.961.770.45
20030.8081.330.2362369 0.771.420.34
20040.8081.240.2452067 0.651.200.30
20050.7961.1680.2371527 0.470.910.24
20060.8981.2890.2632054 0.571.110.30
20071.0211.4730.3122348 0.581.090.30
20081.1311.6190.332894 0.651.250.33
20091.2451.8070.3812871 0.581.110.30
20101.2651.7570.3923197 0.631.150.34
20111.3021.8490.4263257 0.631.130.34
20121.4222.060.4662545 0.470.850.26
20131.6172.4910.52627373270.410.730.21
20141.6242.3460.51925003090.370.650.20
20151.5062.0940.49524711520.360.620.21
20161.6082.2610.58627921670.390.640.22
20171.7822.7090.66425941930.330.560.178
Average1.1771.7720.36133082300.831.540.40

 


 
 Fishing pressure Stock size
  201520162017  201620172018
Maximum sustainable yieldFMSY Below  MSY BtriggerAbove
Precautionary approachFpa,FlimBelow possible reference points Bpa,BlimFull reproductive capacity
Management planFMGTNot applicable BMGTNot applicable