List of frequency studies for Thunnus thynnus
Locality Year
from - to
Sex Gear Frequency type
Barbate, Spain 1956 - 1964 unsexed/mixed  seines  absolute number measured 
Central North Atlantic, USA 2001 - 2002 unsexed/mixed  other  absolute number measured 
East of Bermuda, USA 2001 - 2002 unsexed/mixed  other  absolute number measured 
North Sea, UK 1951 - 1955 unsexed/mixed  hooks and lines  absolute number measured 
Off Grand Bank, USA 2001 - 2002 unsexed/mixed  other  absolute number measured 
Off Iceland, Iceland 2001 - 2002 unsexed/mixed  other  absolute number measured 
Pacific ocean, Mexico 1963 - 1978 unsexed/mixed  other  absolute number measured 
Southern area, Norway 1955 - 1964 unsexed/mixed  seines  absolute number measured 
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