Growth patterns of Arctic charr in five high altitude lakes in a French Alpine massif

Abstract

The growth of Arctic charr Sahelinus alpinus in five high altitude lakes differed between lakes during the first 2 years but was similar thereafter. The average temperature during the summer had a direct effect on growth and an indirect effect on the productivity level of the lakes, particularly on the abundance of planktonic crustaceans. The results highlight the importance of planktonic crustacea in the growth of Arctic charr.

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