Mountain whitefish (Prosopium williamsoni) and brown trout (Salmo trutta) congregate in a small tributary to the Colorado River. Photo by David Herasimtschuk / Freshwaters Illustrated.

Eros et al. used time series of fish abundance to assess the effects of non-native species on the temporal dynamics of riverine fish communities across different biogeographic regions of the world. They found that non-native species increased variability of native populations and contributed to reduced community stability. Read full paper here

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