Modification of river habitat by Eurasian beavers helps fish in small upland streams, according to a new study led by the University of Southampton.
The research shows that by building dams in shallow streams, the beavers create deeper pools that increase availability of suitable habitat and abundance of food – benefiting brown trout, which are a commercially and ecologically important species.
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https://www.eurekalert.org/news-releases/930772