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Witch (Glyptocephalus cynoglossus) in Subarea 4 and divisions 3.a and 7.d (North Sea, Skagerrak and Kattegat, eastern English Channel)
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DOI: 10.17895/ices.data.7314
Species: Glyptocephalus cynoglossus
Stock code: wit.27.3a47d
Assessment Year:2019
Purpose:Advice
Assessment Key: 12955
Stock Key: 169309

 
 
 
 
 
 
 
 
       

 



YearRecruitment97.5%2.5%SSB97.5%2.5%LandingsDiscardsF97.5%2.5%  
 Age 1       Ages 4-8    
 Number of individuals  tonnes  tonnestonnesYear-1     
19502694448817148713504733516742379 0.290.540.161  
19512779349372156463456721716552568 0.310.560.168  
19523077354222174653297699415552554 0.320.590.170  
19533441359817197983049666513952263 0.310.590.161  
19543646463404209712843635212721590 0.280.550.142  
19553501962309196822842641112602027 0.300.580.150  
19562979354317163412871642612831936 0.290.570.149  
19572456345612132272981654113591991 0.290.570.152  
19582160939582117973114670914452678 0.320.610.169  
19592073137121115783070658114322333 0.320.610.170  
19601974336066108082919638213352563 0.340.650.177  
1961176403269695172622596911512093 0.330.650.168  
1962156962876585642352552610011419 0.300.600.150  
196314369263477836221652729311523 0.310.620.156  
196412766240446778207049558651760 0.340.670.170  
196511182212915873183944157661356 0.330.660.164  
196610978204285899164139636791137 0.320.650.159  
196712773227827162149036196131125 0.330.670.165  
196817221297739961133833125411174 0.350.720.172  
196922223381881293311702971461891 0.330.700.156  
197025286439701454110832750427597 0.290.620.134  
197125586443611475711502819469843 0.300.630.143  
197225417446701446213033013564908 0.300.610.146  
1973251254419614283154434047001494 0.320.630.162  
1974255424513114456173236958121138 0.300.580.152  
1975274244844615524194740829291841 0.320.610.169  
1976316005527718065203242359751496 0.310.580.163  
19773987568590231812127442010231618 0.310.570.165  
19785123386114304812212456510711664 0.300.560.166  
197960194102830352362337472311561572 0.290.530.161  
198061641107193354462600504513401883 0.290.510.166  
198158389101975334333022552716521933 0.280.480.167  
19825523096509316073671631221353155 0.310.490.193  
19835363493401307984242691526023606 0.320.490.21  
19845523595055320964574723928913903 0.320.490.22  
19855744697559338264724739730163979 0.320.480.22  
19865772598674337694774745230583579 0.310.460.21  
19875280991660304264814751030863700 0.310.460.21  
19884677682338265744864752731433290 0.300.430.20  
19894246574791241115083776633273841 0.300.430.21  
19904198673164240945163775934363862 0.300.430.21  
19914386575541254725160764034853641 0.290.410.21  
19924778681480280255013735534163164 0.270.380.193  
19935097486734299584879714133332673 0.260.360.181  
19945292091137307294807702532892696 0.250.360.179  
19955271790767306184901716333542810 0.260.360.181  
19965209888844305504969722234182790 0.260.370.185  
19974999685312292995111742335193494 0.290.410.21  
19984686480980271205032736134403786 0.320.450.23  
19994324475677247114788713032154024 0.350.510.25  
20004143672639236374424673029084422 0.390.570.27  
20014350172932259474021616926214206 0.420.600.29  
2002426367032425849356254412332381315290.430.610.31  
200337802615432321931714712213433083490.430.590.32  
200429129470571803128534048201030593690.430.570.33  
200524642396111533026913612200529604190.420.530.33  
200625433396581631026003328203123352960.380.470.30  
200722011357021357026053240209422711990.360.440.29  
200845048662123064925223105204819993180.350.430.28  
2009823151178215750923032874184618634550.360.450.28  
2010782531131095413822292830175615315590.310.400.25  
201138770569482639525923327202015675470.240.310.180  
201229349432491991633504344258419525550.200.270.152  
201330023445562023043205702327320132540.1950.260.144  
201428852435961909452107033385926853070.220.290.159  
201517677274261139353507418385822404490.210.290.150  
2016976116029594454497816379927443900.210.300.146  
20171499225658876054728291361228502360.240.360.162  
2018967918848497052178566317730101990.240.370.152  
20199761            
Average35212602932109133375679204224234370.310.510.193  

 


 
 Fishing pressure Stock size
  201620172018  201620172018
Maximum sustainable yieldFMSYAbove MSY BtriggerAbove trigger
Precautionary approachFpa,FlimIncreased risk Bpa,BlimFull reproductive capacity
Management planFMGT BMGT