Changing Dam Operating Criteria to Accommodate Aquatic Biological Diversity

by Daniel F. Luecke, Environmental Defense Fund, Boulder, United States,

Document Type: Proceeding Paper

Part of: Water Policy and Management: Solving the Problems


The Colorado squawfish, bonytail chub, humpback chub, and razorback sucker, now threatened with extinction, were once the dominant fishes in the river. Recovering these native species will depend in large part on modifying flows from major federal dams. This paper describes the biological basis of the flow changes for one of the dams and the process by which they were developed. It also identifies some of the economic and legal implications of altering the dam's operations.

Subject Headings: Dams | Fish and fishery management | Biological processes | Aquatic habitats | Rivers and streams | Economic factors | Water flow | Colorado | United States

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