Federal dam managers are preparing a springtime assault against smallmouth bass on the Colorado River, possibly using cool water from deep in Lake Powell to keep the non-native fish from getting ...

This story originally appeared in High Country News and is part of the Climate Desk collaboration. On July 1, 2022, a National Park Service biologist named Jeff Arnold was hauling nets through a ...

This article was originally featured on High Country News. On July 1, 2022, a National Park Service biologist named Jeff Arnold was hauling nets through a slough off the Colorado River, several miles ...

Glen Canyon Dam managers will flush cold water from deep in Lake Powell into the Colorado River to help prevent invasive smallmouth bass from colonizing the Grand Canyon, federal officials announced ...

On July 1, 2022, a National Park Service biologist named Jeff Arnold was hauling nets through a slough off the Colorado River, several miles downstream from Glen Canyon Dam, when he captured three ...

The Bureau of Reclamation has proposed a new water plan to stop invasive fish in the Colorado River from wreaking havoc—but a conservation group has warned that it isn't enough. The humpback chub, ...