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Thornback ray (Raja clavata) in Subarea 4 and in divisions 3.a and 7.d (North Sea, Skagerrak, Kattegat, and eastern English Channel)
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Species: Raja clavata
Stock code: rjc.27.3a47d
Assessment Year:2019
Purpose:Advice
Assessment Key: 13100
Stock Key: 169203

 
 
 
 
 
 
 
 
       

 



YearStock size indicatorLandingsIBTS-Q1IBTS-Q3BTS-ENG-Q3CGFS-Q4
       
 tonnes    
19930.435 0.5550.5690.4330.185
19940.291 0.1510.0720.4270.513
19950.279 0.1520.1840.4180.359
19960.632 0.361.520.6150.034
19970.601 0.8740.5610.5230.449
19980.235 000.4310.508
19990.449 0.0970.4580.8540.388
20000.378 0.2410.0990.6610.513
20010.407 0.3120.2110.6680.435
20020.486 0.3330.6850.3840.544
20030.458 0.5320.1040.8150.382
20040.428 0.1580.0841.1390.329
20050.529 0.6630.090.4410.921
20060.933 1.7260.6190.6410.746
20070.595 0.3110.0231.0111.035
20081.664 3.5790.6541.4171.006
20091.15611292.0730.4981.0760.977
20100.88313360.5120.3871.6151.016
20110.58312820.0870.5890.9560.7
20121.68515893.7110.3341.3711.326
20131.74818680.9333.10.7832.176
20142.39519051.5493.5352.1492.346
20152.21816451.7692.8862.0792.139
20162.11618260.7353.6081.52.622
20172.05117893.5991.4371.6281.54
20182.36422190.9873.6921.9652.812
Average116591111

 


 
 Fishing pressure Stock size
  201620172018  201620172018
Maximum sustainable yieldFMSYUnknown MSY BtriggerUnknown
Precautionary approachFpa,FlimUnknown Bpa,BlimUnknown
Management planFMGTNot applicable BMGTNot applicable
Qualitative evaluation-Unknown -Increasing
 
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