A mass fish die-off in Brazil’s Amazon River region has killed an estimated 20-30 metric tons of fish and other aquatic animals, following one of the worst droughts in Amazonian history. On the night ...

“Almost every big river in North America and Europe is massively modified” through damming, putting freshwater species at risk, he said. Fish swim Jan. 29, 2019, past mud released by the collapse of a ...

Stefan Lovgren writes on how freshwater fish from the Arctic to Africa are endanged by climate change and the unpredictable ...

A small fossil reveals that the largest freshwater fish, Otophysans, emerged in the sea, not in rivers, changing the ...

The Convention on the Conservation of Migratory Species of Wild Animals (CMS) does not adequately address the issue of migratory freshwater fishes.