List of frequency studies for Katsuwonus pelamis
Locality Year
from - to
Sex Gear Frequency type
Annobon, Eq Guinea 1968 - 1975 unsexed/mixed  other  % of sample 
Bohol Sea, Philippines 1980 - 1980 unsexed/mixed  trawls  absolute number measured 
Bohol Sea, Illana and Tayabas Bay, Philippines 1983 - 1988 unsexed/mixed  various gears  absolute number measured 
Darigayos Cove, La Union, Philippines 1981 - 1981 unsexed/mixed  hooks and lines  absolute number measured 
Initao, Misamis Oriental, Philippines 1980 - 1982 unsexed/mixed  other  raised to the catch 
Manus Is.(N), New Hanover Is. (N&S) & Bismarck Sea (E), Papua New Guinea 1977 - 1979 unsexed/mixed  other  % of sample 
Northern Atlantic, Cape Verde 1968 - 1975 unsexed/mixed  other  % of sample 
Opol, Misamis Oriental, Philippines 1979 - 1980 unsexed/mixed  other  raised to the catch 
Opol, Misamis Oriental, Philippines 1980 - 1981 unsexed/mixed  other  raised to the catch 
Opol, Misamis Oriental, Philippines 1981 - 1982 unsexed/mixed  other  raised to the catch 
Rio de Janeiro, Brazil 1980 - 1983 unsexed/mixed  other  absolute number measured 
Sulu Sea, Philippines 1975 - 1976 unsexed/mixed  trawls  absolute number measured 
West Pacific (Sorong, Irian), Indonesia 1978 - 1978 unsexed/mixed  trawls  absolute number measured 
West Pacific (Sorong, Irian), Indonesia 1979 - 1979 unsexed/mixed  trawls  absolute number measured 
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