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A new study looks into how many fish are in reservoirs across the U.S., and what role these ecosystems could play in conservation and food security.

The Bureau of Reclamation released a draft plan for releases from Glen Canyon Dam, which holds back Lake Powell. It's an effort to protect native humpback chub from smallmouth bass.

Nationwide, millions of barriers, like dams, are plugging up rivers and streams. These man-made barriers make it hard for fish to move freely and lay eggs. Now, the federal government is spending more than $200 million to reopen spawning grounds for fish, which includes an effort to recover an endangered species sacred to the Pyramid Lake Paiute Tribe in Nevada.

A new study from the University of Colorado-Boulder looks at the impacts of climate change on rivers in Alaska. The findings are bad news for the state鈥檚 rural indigenous communities.

Environmental researchers say PFAS and other so-called 鈥渇orever chemicals鈥� are present at 鈥渟taggeringly high鈥� levels in freshwater fish in the mountain west, and residents are poised to fight the proposed Sweetwater Lake State Park.

As people start to take down their holiday decorations, some community leaders and advocates are pushing for recycling those materials.

We touched base this week with our colleagues at the Colorado Sun to learn more about the news they're covering. Reporter Michael Booth spoke with KUNC's Beau Baker about the stories the Sun is featuring.

Climate change and outdated dams are shrinking fish populations across the Mountain West and beyond. That includes a species that a Native American tribe in our region used to rely on.

U.S. Fish and Wildlife Service officials have downlisted the humpback chub, a fish found only in the Colorado River Basin, from endangered status to threatened. The move comes after decades of protection and conservation efforts, which have slowly brought the species back from the brink of extinction.

The humpback chub, a rare fish found only in the Colorado River basin, has been brought back from the brink of extinction after decades of protection, though work must continue to ensure its survival, federal authorities said Monday in reclassifying the species from endangered to threatened status.