Biologists try to save ancient fish as Colorado River

Biologists try to save ancient fish as Colorado River

By Brittany Peterson and John Flesher

Source: usatoday

6/15/2022

Credit: AP

Barrett Friesen steers a motorboat toward the shore of Lake Powell, with the Glen Canyon Dam towering overhead.

Pale "bathtub rings" line the canyon's rocky face, starkly illustrating how water levels have slumped in the second-largest U.S. reservoir amid rising demand and a multi-year drought.

The Utah State University graduate student and colleagues are on a mission to save the humpback chub, an ancient fish under assault from nonnative predators in the Colorado River.

The U.S. Bureau of Reclamation fundsFriesen's fieldwork to help federal, state and tribal policymakers fine-tune their strategy..

The team notes length and weight of fish and examines stomachs to see what they are eating. A draft plan containing solutions is expected to be released in August.

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