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The world’s great fish migrations are collapsing – that’s a problem for millions of people

  • Written by Zeb Hogan, Professor of Biology, University of Nevada, Reno
imageMahseer swim in the Ramganga River, a major tributary of the Ganges River in South Asia.Zeb Hogan

Hidden beneath the surface of the world’s rivers, some of Earth’s great animal movements unfold – migrations that rival, in sheer biomass, the famous mass movements of zebra and wildebeest across the Serengeti.

For centuries, fish...

Read more: The world’s great fish migrations are collapsing – that’s a problem for millions of people

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