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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:2021
Purpose:Advice
Assessment Key: 16689
Stock Key: 169203

 
 
 
 
 
 
 
 
       

 



YearStock size indicatorLandingsIBTSQ1Q3UK-BTSQ3CGFS-Q4BE-BTS
       
 tonnes    
20040.356 0.1170.7830.2130.31
20050.292 0.2530.3120.5320.07
20060.434 0.7730.5180.4270.019
20070.355 0.120.7050.5940
20080.974 1.4931.0060.5770.82
20090.71411290.8080.7320.560.758
20100.64713360.2331.1270.5820.645
20110.44712820.1780.6580.4020.549
20120.90515891.2910.9820.6560.689
20130.9718681.140.5311.3950.813
20141.67519051.4491.461.6362.154
20151.31416451.5811.4121.3280.935
20161.47218261.4081.021.8781.581
20171.48417901.7141.1861.1081.929
20181.74922201.6691.3651.9362.025
20191.76222041.3871.8372.1771.646
20201.60322231.3851.366 2.057
Average1.00917511111

 


 
 Fishing pressure Stock size
  201820192020  201820192020
Maximum sustainable yieldFMSYUnknown MSY BtriggerUndefined
Precautionary approachFpa,FlimUnknown Bpa,BlimUndefined
Management planFMGTNot applicable BMGTNot applicable
Qualitative evaluation-Unknown -Decreasing