study of existence and sport values for doubling the size of the Columbia River Basin salmon and steelhead runs / by Darryll Olsen, Jack Richards, R. Douglas Scott ; prepared for North Pacific Division, U.S. Army Corps of Engineers.
Contributors: Richards, Jack.; Scott, R. Douglas.; United States. Army. Corps of Engineers. North Pacific Division.; United States. Army. Corps of Engineers. Portland District.
Series: Columbia River and tributaries study -- CRT 73.
Publisher: Corps of Engineers, North Pacific Division
Published: 1990
Place of publication: Portland, Or
Language: eng
Subjects: Pacific salmon -- Economic aspects -- Columbia River Watershed.; Steelhead (Fish) -- Economic aspects -- Columbia River Watershed.; Fishery management -- Columbia River Watershed.
Notes: "January 1990."