Changing Dam Operating Criteria to Accommodate Aquatic Biological Diversityby Daniel F. Luecke, Environmental Defense Fund, Boulder, United States,
Abstract: 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 | Biological processes | Aquatic habitats | Fish management | Economic factors | Rivers and streams | High-rise buildings | Legal affairs | Federal government | North America | Colorado River | Colorado | United States
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