Why We Must Protect Freshwater Fish — nationalgeographic.com

Hundreds of millions of people worldwide would lack their prime source of protein without freshwater fish. Yet the lakes and river systems that supply them are often overlooked by policymakers, who focus sustainability efforts instead on ocean species. Marine fisheries tend to be commercial operations, while freshwater fishing is almost exclusively a means of subsistence. “Most freshwater fish catches don’t enter the global trade economy, so they draw less interest,” says University of Wisconsin–Madison zoologist Peter McIntyre.

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