Bradly J. Boner | Photography

Rotenone in Kelly Warm Springs

Clark Johnson, a fisheries biologist with the Wyoming Game and Fish Department, applies rotenone into Kelly Warm Springs from a raft on Aug. 21 in Grand Teton National Park. The project aims to rid the warm springs of non-native amphibians and fish, such as goldfish, most of which were introduced to the water feature by humans.

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Clark Johnson, a fisheries biologist with the Wyoming Game and Fish Department, applies rotenone into Kelly Warm Springs from a raft on Aug. 21 in Grand Teton National Park. The project aims to rid the warm springs of non-native amphibians and fish, such as goldfish, most of which were introduced to the water feature by humans.