Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preserving Columbia River Salmon fisheries
Former spawning grounds were isolated by construction of Grand Coulee Dam, creating considerable losses in food value and by-products; induced migration to other branches of river provided aid for threatened industry; planning and operation of hatcheries are described.
Preserving Columbia River Salmon fisheries
Former spawning grounds were isolated by construction of Grand Coulee Dam, creating considerable losses in food value and by-products; induced migration to other branches of river provided aid for threatened industry; planning and operation of hatcheries are described.
Preserving Columbia River Salmon fisheries
Civ Eng (NY)
Dedel, D.A. (Autor:in)
1943
4 pages
Aufsatz (Zeitschrift)
Englisch
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