brook trout (IMAGE)

Penn State

brook trout

Caption

Brook trout, an iconic coldwater fish species native to streams and lakes in the eastern United States and Canada, begin to experience declines in growth rate in water above 61 degrees Fahrenheit and acute heat stress above 68 degrees Fahrenheit. In this study, researchers caught, sampled and released fish in four streams in Pennsylvania. 

Credit

Jason Keagy/Penn State

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License

CC BY-NC-ND

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