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The U.S. Bureau of Reclamation has begun water releases from Glen Canyon Dam to cool the temperature of the Colorado River and slow the reproduction of an unwanted fish threatening native species.
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The U.S. Bureau of Reclamation is taking public comment on a proposal to disrupt the spawning of a nonnative fish in the Grand Canyon by releasing spikes of cool water from Glen Canyon Dam. Many in the Colorado River community want more options.
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The U.S. Bureau of Reclamation announced its plan for dealing with nonnative smallmouth bass in the Colorado River. The agency wants to release cool water from Glen Canyon Dam to disrupt the fish’s life cycle.
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The National Park Service is again offering anglers cash bonuses anglers to catch brown trout in the Colorado River between Glen Canyon Dam and the Paria River. The program helps manage the increasing population of the invasive fish.
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The U.S. Bureau of Reclamation released a draft plan Wednesday responding to the invasion of nonnative, predatory fish in the Colorado River below Glen Canyon Dam.
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This year marks the 50th anniversary of the federal Endangered Species Act. The landmark conservation law lists more than 1,600 animals and plants as threatened or endangered. The U.S. Fish and Wildlife Service sets plans to recover those species and their habitats.
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A minnow that can reach six feet long and weigh eighty pounds—now that’s a fish story! But, this one happens to be true. The Colorado pikeminnow was known to reach such sizes.
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The National Park Service began electrofishing in the Colorado River this week to kill smallmouth bass between Glen Canyon Dam and Lees Ferry. KNAU’s Melissa Sevigny reports, it follows an unsuccessful attempt to control the exotic fish by poisoning a nearby slough.
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The Grand Canyon is a haven for native fish. But that’s now threatened by smallmouth bass, an exotic fish that eats native species and has recently escaped through Glen Canyon Dam. Scientists say a shock of cold water released through the dam might help keep their numbers down. KNAU’s Melissa Sevigny spoke with fish biologist Drew Eppehimer about the tradeoffs involved.
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Biologists have worked for decades to restore native Apache trout to their home waters in the White Mountains. Now, wildlife biologists say those efforts may finally be paying off.