List of frequency studies for Salmo trutta
Locality Year
from - to
Sex Gear Frequency type
Llyn Frongoch, UK Engld Wal 1983 - 1983 unsexed/mixed  seines  absolute number measured 
Loch Leven, Kinross, UK Scotland 1968 - 1968 unsexed/mixed  trawls  absolute number measured 
Narcea river (Banzao), Spain 1989 - 1989 unsexed/mixed  other  absolute number measured 
Narcea river (Coto), Spain 1989 - 1989 unsexed/mixed  other  absolute number measured 
Narcea river (Gedrez), Spain 1989 - 1989 unsexed/mixed  other  absolute number measured 
Narcea river (Moal), Spain 1989 - 1989 unsexed/mixed  other  absolute number measured 
Narcea river (Naviego), Spain 1989 - 1989 unsexed/mixed  other  absolute number measured 
Narcea river (Tablizas), Spain 1988 - 1989 unsexed/mixed  other  absolute number measured 
Narcea river (Zreizal), Spain 1989 - 1989 unsexed/mixed  other  absolute number measured 
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