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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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Federal officials say they’re one step closer to finalizing a plan to remove invasive fish from the Colorado River below Glen Canyon Dam.
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This weekend federal officials will begin another round of chemical treatments in the Colorado River meant to remove invasive fish. But environmentalists want more to be done to protect native species.
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The National Park Service will renew efforts to rid an area of the Colorado River of invasive fish by killing them with a chemical treatment.
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Environmental groups are calling on federal officials to prevent populations of non-native smallmouth bass from establishing below Glen Canyon Dam on the Colorado River.
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The U.S. Bureau of Reclamation is seeking public input on a plan to prevent smallmouth bass from spawning downstream of Glen Canyon Dam.
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As America's large reservoirs on the Colorado River drop to record-low levels, fish are among those suffering the impact.
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The National Park Service on Saturday will begin using a pesticide to remove invasive smallmouth bass and green sunfish from the Colorado River below Glen Canyon Dam.
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Humpback chub in the Grand Canyon have flourished under long-running restoration efforts. But now, exotic fish that prey on chub and other native fish have begun to slip through Glen Canyon Dam. It’s an unprecedented problem caused by the drought-stricken low levels of Lake Powell. KNAU’s Melissa Sevigny spoke with National Park Service fisheries biologist Melissa Trammell about her concerns.
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A key fish that has lived in the Colorado River for millennia, and whose presence indicates a healthy river, is now up against a threat from a giant dam above.