| Chemical Treatment to Be Deployed Against Invasive Fish in Colorado River | |
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Source: Associated Press |
8/18/2023 |
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Credit: Travis Francis/U.S. Fish and Wildlife Service via AP |
The National Park Service will renew efforts to rid an area of the Colorado River in northern Arizona of invasive fish by killing them with a chemical treatment, the agency said Friday. |
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A substance lethal to fish but approved by federal environmental regulators called rotenone will be disseminated starting Aug. 26. It’s the latest tactic in an ongoing struggle to keep non-native smallmouth bass and green sunfish at bay below the Glen Canyon Dam and to protect a threatened native fish, the humpback chub. |
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