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Filtrado por: Creator Chapman, Wilbert McLeod, 1910-1970

The effects on salmon populations of the partial elimination of fixed fishing gear on the Columbia River in 1935

Creator:

Johnson, Donald R., Chapman, Wilbert McLeod, 1910-1970, Schoning, Robert W., and Oregon. Fish Commission

Abstract:

1. Six major types of commercial gear have been used to take salmon and steelhead on the Columbia River; namely, gill nets, set nets, seines, traps, fish wheels and dip nets. 2. The five important commercial species in the Columbia River are chinook, silver, blueback and chum salmon and steelhead...

Resource Type:

Technical Report
Dams and the problem of migratory fishes : a symposium presented before a joint meeting of the American Society of Ichthyologists and Herpetologists, Western Division, and the Western Society of Naturalists, held at Stanford University on June 29, 1939...

Creator:

American Society of Ichthyologists and Herpetologists, Rich, Willis H. (Willis Horton), 1885-1972, Holmes, Harlan B., 1898-1975, Chapman, Wilbert McLeod, 1910-1970, Hanson, Harry A., Taft, Alan C., and Sumner, Francis Bertody, 1874-1945

Abstract:

A symposium presented before a joint meeting of the American Society of Ichthyologists and Herpetologists and the Western Society of Naturalists at Stanford University on June 29, 1939, and published as a special issue of the Stanford Ichthyological Bulletin through the cooperation of the Fish Commission of the State of...

Resource Type:

Technical Report