Coregonus alpinus
Introduction '''''Coregonus alpinus''''' is a species of freshwater whitefish in the family Salmonidae. It is endemic to Lake Thun, in Switzerland's Interlaken region, where it is found in deep water. The maximum length recorded for this species is . It feeds on chironomids and other bottom-dwelling invertebrates. It is known as the '''kropfer''', a name also applied to the probably extinct species ''Coregonus restrictus''.
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