An experimental comparison of cannibalistic response in different Arctic charr ( Salvelinus alpinus (L.)) stocks

Abstract– The cannibalistic response of four domesticated Arctic charr stocks were compared experimentally using a radiographic technique. Charr from Arctic Spitsbergen (80°N) consistently exhibited a much higher frequency of cannibalistic response than fish from three charr strains from mainland No...

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Bibliographic Details
Published in:Ecology of Freshwater Fish
Main Authors: Amundsen, P.‐A., Svenning, M.‐A., Slikavuoplo, S. I.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1999
Subjects:
Ecology
Aquatic Science
Ecology, Evolution, Behavior and Systematics
Arctic
Norway
Arctic charr
Salvelinus alpinus
Spitsbergen
Online Access:http://dx.doi.org/10.1111/j.1600-0633.1999.tb00051.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0633.1999.tb00051.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0633.1999.tb00051.x
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Summary:Abstract– The cannibalistic response of four domesticated Arctic charr stocks were compared experimentally using a radiographic technique. Charr from Arctic Spitsbergen (80°N) consistently exhibited a much higher frequency of cannibalistic response than fish from three charr strains from mainland Norway (70°N). The results indicate that the extent of cannibalistic feeding in Arctic charr is population specific and support the hypothesis that charr from Arctic populations have stronger cannibalistic tendencies than do fish from more temperate regions.

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