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Evo in the News

Shrinking salmon

You can’t tell when it’s on your dinner plate, but wild salmon have been shrinking. Salmon from populations around the world now have smaller body sizes than they did 30 to 60 years ago.  While the causes of this shift aren’t always clear, potential culprits include fishing, climate change, and competition for food (e.g., from hatchery-bred salmon).  Now, new research untangles the probable causes of reduced body size in one population of wild Atlantic salmon – and demonstrates how the impacts of human activities can ripple through ecosystems.

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