2003•Unpublished venueRequires access
Biology of Brown Trout (Salmo trutta) and Arctic Charr (Salvelinus alpinus) in Four Faroese Lakes
føroyskum vøtnum, Hilmar J. Malmquist, Finnur Ingimarsson, Erlín E. Jóhannsdóttir, Sigurður S. Snorrason
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Abstract
The biology of Brown trout (Salmo trutta) and Arctic charr (Salvelinus alpinus) was studied in four Faroese lakes in late July – early August 2000. Relative density and condition of Brown trout were lowest in Leynavatn and highest in Saksunarvatn. Arctic charr only occurred in Leynavatn, where it outnumbered Brown trout by a factor of 2.7. For all fish populations, growth rates were slow, fish were small and maximum age of fish was low. The oldest fish in Toftavatn was 5+ yr and the oldest fish in the study, in Saksunarvatn, was 9+ yr. Asymptotic length was ca. 21 cm for arctic charr in Leynavatn and ca. 25 cm for Brown trout in both Leynavatn and Ann. Soc. Scient. Faeroensis Suppl. 36. 2002: 94-113 94 Biology of Brown Trout (Salmo trutta) and Arctic Charr (Salvelinus alpinus) in Four