U.S. Bureau of Reclamation Halts Grand Canyon Fish Protection Program

The U.S. Bureau of Reclamation has announced the discontinuation of its 'cool mix' program intended to combat invasive smallmouth bass in the Grand Canyon. This decision stems from record-low water levels at Lake Powell, which impacts hydropower generation.

Scientists warn that the absence of cool water releases could lead to increased bass spawning, threatening local trout fisheries and native species. The program, which cost millions to implement, had effectively suppressed bass reproduction in previous years.

With current water levels below 25% capacity, the Bureau faces pressure to maintain hydropower production, leading to the suspension of conservation efforts. Without intervention, the rising water temperatures could significantly harm both native fish and the popular trout fishery at Lees Ferry. Experts argue that failing to implement alternative control methods may have long-term consequences for the ecosystem.