Photos - Freshwater Fish - Trouts

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Learn more about trout as environmental indicators and read An Introduction to Freshwater Fishes as Biological Indicators (EPA-260-R-08-016 November 2008) (96pp, 3.3MB About PDF).

Family Salmonidae

Brook Trout - photo by Wayne Davis USEPA

Brook Trout - Salvelinus fontinalis

Brown Trout - Salmo trutta

Lake Trout - Salvelinus namaycush

Rainbow Trout - photo by Wayne Davis USEPA

Rainbow Trout - Oncorhynchus mykiss

Greenback Cutthroat Trout - photo by Wayne Davis USEPA

Greenback Cutthroat Trout - Oncorhynchus clarki stomias
Learn more about this threatened species.

Biological Indicators | Aquatic Biodiversity | Statistical Primer

Photos - Freshwater Fish - Trouts

Family Salmonidae

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