ICES Marine Data
Stock Assessment Graphs


  Stock assessment graphs > View list of published graphs and tables > View published graphs and tables
 
       

Witch (Glyptocephalus cynoglossus) in Subarea 4 and divisions 3.a and 7.d (North Sea, Skagerrak and Kattegat, eastern English Channel)
 
Download graphs and tables(.doc)
Download stock data (XML)
Download standard graphs (zip) - regular size
Download standard graphs (zip) - powerpoint size
View on the map
View source data
Species: Glyptocephalus cynoglossus
Stock code: wit.27.3a47d
Assessment Year:2022
Purpose:Advice
Assessment Key: 17059
Stock Key: 169309

 
 
 
 
 
 
 
 
       

 



YearRecruitment97.5%2.5%Spawning Stock Biomass (SSB)97.5%2.5%LandingsDiscardsFishing pressure97.5%2.5%  
 Age 1       Ages 4-8    
 thousands  tonnes  tonnestonnes     
19502859546886174403857829117942379 0.270.520.142  
19512943347494182403751813117302568 0.280.550.147  
19523202750925201423578794916102554 0.290.570.147  
19533493554825222613408783214832263 0.280.560.136  
19543586756698226893336783614201590 0.250.520.118  
19553415255356210703345788714182027 0.260.530.123  
19562981349494179583392788914591936 0.260.520.124  
19572552242968151593464783215321991 0.260.530.131  
19582268537576136953462763515692678 0.290.560.151  
19592097734252128473346731715302333 0.300.580.155  
19601933632157116273131694814112563 0.320.610.163  
19611749429583103452874657512562093 0.300.600.153  
1962157152644493392669625711391419 0.280.560.135  
1963142282406184142490591610481523 0.280.570.140  
196412840223397380226654739391760 0.310.630.152  
196511946211536746203250008261356 0.300.630.146  
196612203211577038182945857301137 0.300.630.141  
196713993233398390164442306391125 0.310.660.142  
1968178062854611107147139515481174 0.320.710.142  
196922064350271389913513793482891 0.290.680.122  
197025380408241577913343772472597 0.250.600.102  
197126083421081615714043839514843 0.250.600.108  
197226158428261597815403960599908 0.260.590.116  
1973259734258015843171041227091494 0.290.610.137  
1974266084365316219189143278271138 0.280.580.134  
1975289224716517736204445409201841 0.300.600.152  
1976335565374820950215247269801496 0.290.580.147  
19774167065000267132256494110301618 0.290.570.147  
19785137178587335812376517910901664 0.280.550.145  
19795908492404377792568548012031572 0.270.520.139  
19806134898741381152865584814041883 0.270.500.144  
19815932695875367113283627017191933 0.270.480.152  
19825679391305353263746664821103155 0.300.490.184  
19835564688711349054129687424803606 0.320.500.21  
19845724089947364264372697627403903 0.340.510.22  
19855854790715377864480700528653979 0.340.510.23  
19865842391179374354534703429223579 0.330.490.22  
19875439486604341644585708429683700 0.320.480.22  
19884918179483304314670715330493290 0.310.460.21  
19894517172684280724751717131483841 0.320.460.22  
19904443370168281364755705532053862 0.320.450.22  
19914586770863296894695686132133641 0.310.430.22  
19924950675351325254614667431903164 0.290.410.21  
19935261380112345534575658731772673 0.270.380.190  
19945480884921353744593660131962696 0.260.370.185  
19955503785697353474662668632512810 0.260.370.186  
19965435183722352844754679333272790 0.270.380.192  
19975183779320338774795684333593494 0.300.430.21  
19984841574605314194700675232713786 0.340.480.24  
19994456669266286744460650730574024 0.380.540.26  
20004242365849273314090606227594422 0.420.600.29  
20014371965432292113661544524614206 0.440.630.31  
20024351463161299783247475722173813 0.460.640.33  
20033913955697275042914411820623308 0.460.620.34  
20042895540447207282681359919983059 0.450.590.35  
20052456133625179412554324420102960 0.440.550.35  
20062785736696211462497303520542335 0.400.480.32  
20072336331951170832448288820742271 0.370.450.31  
20083707546343296602341271620171999 0.370.440.31  
200958569723684740221592497186718944090.380.450.31  
201051564636764175521282466183715505240.330.400.27  
201134809441452744823572726203817724480.260.320.21  
201232684411282597327993222243221534470.230.290.185  
201336134451892889334063919296020332250.240.300.195  
201432489410432571838344440331127412510.280.350.23  
201523474302441821939594634338223633990.270.330.22  
201619841268571465839514682333430252870.280.340.22  
201729242399512140438434647317833601500.310.390.25  
201834483501372371636124527288331411520.320.410.24  
201953782817713537432884344248927071830.320.440.24  
202054869906563320930304266215219801840.300.440.21  
2021677291297653535031284639210918572450.290.450.189  
202234809  3544         
Average37384575642453432255535200324353000.310.510.196  

 


 
 Fishing pressure Stock size
  201920202021  202020212022
Maximum sustainable yieldFMSYAbove MSY BtriggerBelow trigger
Precautionary approachFpa,FlimIncreased risk Bpa,BlimIncreased risk
Management planFMGTNot applicable BMGTNot applicable