Biological risks associated with a John Day Reservoir drawdown
By: prepared by Don E. Weitkamp, Bob D. Sullivan.
Contributors: Sullivan, Robert D.; United States. National Marine Fisheries Service.
Publisher: Parametrix
Published: 1993
Place of publication: Seattle, Wash
Language: eng
Number of pages: 22
Subjects: Reservoir drawdown -- Environmental aspects -- Columbia River; Chinook salmon -- Columbia River -- Effect of water levels on; Umatilla, Lake (Or. and Wash.); John Day Dam (Wash.)
Notes: Cover title.

"April 1993."

Includes bibliographical references (leaves 20-22).