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Turbot (Scophthalmus maximus) in Division 3.a (Skagerrak and Kattegat)
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Species: Scophthalmus maximus
Stock code: tur.27.3a
Assessment Year:2019
Purpose:Advice
Assessment Key: 11581
Stock Key: 169294

 
 
 
 
 
 
 
 
       

 



YearBiomass Index (IBTS Q1)LandingsDiscardsIBTS Q3 biomass index
     
 Kilograms per hourtonnestonneskg/h
1950 299  
1951 265  
1952 181  
1953 139  
1954 140  
1955 130  
1956 123  
1957 141  
1958 160  
1959 184  
1960 174  
1961 179  
1962 162  
1963 128  
1964 94  
1965 86  
1966 106  
1967 73  
1968 64  
1969 76  
1970 77  
1971 101  
1972 132  
1973 100  
1974 117  
1975 183  
1976 383  
1977 736  
1978 525  
1979 406  
1980 233  
1981 207  
1982 182  
1983 209  
1984 188  
1985 241  
1986 193  
1987 161  
1988 138  
1989 184  
1990 386  
19911.11276 0.223
19920.39309 0.248
19930.66349 0.069
19940.46352 0.518
19950.57300 0.091
19960.62209 0.248
19970.47220 0.098
19980.4163 0.028
19990.11155 0.116
20000.25192  
20010.42238 0.126
20020.16221 0.359
20030.32159 0.13
20040.36147 0.102
20050.33127 0.14
20060.75121 0.348
20070.54173 0.267
20080.1143 0.656
20090.34120 0.451
20100.3395 0.338
20110.2899 0.219
20120.5189 0.412
20130.4511370.179
20140.09120110.432
20151.06183180.4
20160.71188160.38
20170.58190300.178
20180.51153210.259
20190.33   
Average0.45193170.26

 


 
 Fishing pressure Stock size
  201620172018  201720182019
Maximum sustainable yieldFMSYUnknown MSY BtriggerUndefined
Precautionary approachFpa,FlimUnknown Bpa,BlimUndefined
Management planFMGT BMGT
Qualitative evaluation-Unknown -Decreasing
 
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