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Browsing Oregon Fish Commission Contributions by Subject

Browsing Oregon Fish Commission Contributions by Subject "Thematic Classification -- Plants and Animals -- Fish -- Anadromous Fish -- Coho Salmon"

Now showing items 1-6 of 6

The 1951 Alsea River silver salmon tagging program

Morgan, Alfred R.; Cleaver, Fred C. (Frederick Charles), 1916-; Oregon. Fish Commission (Portland, Or. : Fish Commission of Oregon, 1954)

During a tagging operation conducted in 1951 on the Alsea River, 1,142 adult silver salmon were tagged with plastic Petersen-type tags and stainless steel jaw tags. An attempt was made to determine whether tagged fish r ...
Age, length and weight studies of three species of Columbia River salmon (Oncorhynchus keta, O. gorbuscha and O. kisutch)

Marr, John C.; Oregon. Fish Commission (Salem, Or. : Department of Research, Fish Commission of the State of Oregon, 1944)

Samples, consisting of scales, length and weight measurements, and sex determinations of chum, pink, and silver salmons, were taken from the commercial catch in the Columbia River in 1914. Five hundred eighteen chum scal ...
The effects on salmon populations of the partial elimination of fixed fishing gear on the Columbia River in 1935

Johnson, Donald R.; Chapman, Wilbert McLeod, 1910-1970; Schoning, Robert W.; Oregon. Fish Commission (Portland, Or. : Oregon Fish Commission, 1948)

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 t ...
The ocean salmon troll fishery of Oregon

Van Hyning, Jack M.; Oregon. Fish Commission (Portland, Or. : Oregon Fish Commission, 1951)

1. The Oregon troll salmon fishery developed rapidly prior to World War I to reach a peak of between one and three thousand boats fishing off the mouth of the Columbia River during 1919. The fishery later expanded to th ...
Oregon coastal salmon and steelhead tagging programs

Henry, Kenneth A.; Morgan, Alfred R. (Portland, Or. : Fish Commission of Oregon, 1964)

Part I. To aid in the management of the Tillamook Bay commercial salmon fishery, a tagging program was conducted on the salmon and steelhead trout runs in 1953. General migration behavior, the minimum length of time th ...
Tuberculosis in Pacific salmon and steelhead trout

Wood, James W.; Ordal, Erling Josef, 1906-; Oregon. Fish Commission (Portland, Or. : Fish Commission of Oregon, 1958-12)

Tuberculosis in salmonoid fishes was first observed in the 1952 run of fall chinook salmon (Oncorhynchus tshawytscha) returning to the Bonneville Hatchery of the Oregon Fish Commission. In the studies reported here, tube ...