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Lake trout sampling

By Alaska Science Center
Lake trout with stomach contents visible below the fish consist primarily of slimy sculpin. Dorsal muscle collection also.
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Detailed Description

Lake trout with stomach contents in Wrangell St. Elias National Park. Dorsal muscle collection and stomach content analysis are used to evaluate biomagnification of mercury in Lake trout (Salvelinus namaycush). Stomach contents visible below the fish consist primarily of slimy sculpin (Cottus cognatus).

Sources/Usage

Public Domain.

USGS