ICES Marine Data
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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)
Species: Stock Assessment Graphs
Stock code: wit.27.3a47d
Assessment Year: 2017
Key: 8983
   
   
Unit weights tonnes
Unit recruitment thousands
Fishing pressure description
Fishing pressure units
Stock size description
Stock size units
       
Fish reference points      
       
Management plan SSBMP  
FMP  
MSY approach MSYBtrigger  
FMSY  
Precautionary approach Blim  
Bpa  
Flim  
Fpa  
       
Age and Length      
       
Recruitment 0  
F  
       
       
 
Fish data
YearLandingsDiscards
1965  
1966  
1967  
1968  
1969  
1970  
1971  
1972  
1973  
1974  
19751841 
19761496 
19771618 
19781664 
19791572 
19801883 
19811933 
19823155 
19833606 
19843903 
19853979 
19863579 
19873700 
19883290 
19893841 
19903862 
19913641 
19923164 
19932673 
19942696 
19952810 
19962790 
19973494 
19983786 
19994024 
20004422 
20014206 
20023640 
20033281 
20043029 
20052813 
20062303 
20072236 
20081953 
20091818 
20101490 
20111530 
20121953592
20132020252
20142669281
20152238410
20162739448
 
 
 
 
Custom reference points
 
Custom fish data column names
CustomName1CustomName2
IBTS Q1IBTS Q3
 
Custom fish data
YearCustom1Custom2
1965  
1966  
1967  
1968  
1969  
1970  
1971  
1972  
1973  
1974  
1975  
1976  
1977  
1978  
1979  
1980  
1981  
1982  
1983  
1984  
1985  
1986  
1987  
1988  
1989  
1990  
19910.09975705447897120.1149837394184
19920.3885764373725770.119162131913348
19930.2778779663108070.0618811682472636
19940.08564888576878150.0810983355428256
19950.2483345930155390.125968615442904
19960.08906547173719830.100076267141071
19970.2510139403146130.169622649739093
19980.2477326728950510.0848571939256315
19990.1936460986711840.116193075855439
20000.2415996361913460.0411324481997381
20010.1278708140990350.111581005519052
20020.1573986874508840.0875977322397761
20030.12114917288480.0507921544673818
20040.1176861009698230.0764184633044873
20050.1435550737368450.0547048257775818
20060.05545961156757830.0821893628581375
20070.08350029531128980.117761834648785
20080.109436955469980.0569679835555453
20090.06389264500409880.0532621914540164
20100.0440136216038670.0637018056089269
20110.04775232000233670.0931528296778512
20120.08981282193856070.128767378238482
20130.08447042213983340.127556527542059
20140.2889339224385060.0786403461343322
20150.1884511192118750.123958039534227
20160.128360100771540.13
 
 
 
 
Sensivity data