Freshwater fish populations plunge 81% as river migrations collapse

ScienceDaily
Mar 26, 2026, 9:51 pm102 pts
A sweeping global report finds that migratory freshwater fish are in steep decline, with populations down roughly 81% since 1970. These species depend on long, connected rivers, but dams and human pressures are cutting off their routes. Hundreds of species now need coordinated international protection. Experts…

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