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U.S. Fish & Wildlife Service
A close-up photo of a person's hand holding a brown trout. The front half of the brown trout is visible, with the second half of the trout going out of the image. The trout is brightly colored with hues of gold and green sprinkled with black and orange spots.

brown trout

Salmo trutta
Salmo trutta | U.S. Fish & Wildlife Service