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Chinook salmon muscle biopsy

Detailed Description

Chinook salmon restrained in a cradle after non-lethal muscle biopsy sample collection for heat stress assessment at a subsistence fish wheel in the Yukon River during July 2017. The muscle biopsy location looks like one of the black spots on the back of the fish.

Sources/Usage

Public Domain.

Photo by Shannon Waters-Dynes, U.S. Geological Survey

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