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

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

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  • Rich, Willis H. (Willis Horton), 1885-1972; Oregon. Fish Commission ([Salem, Or. : State Printing Dept.], 1943)
    In a paper now in press as a Bulletin of the U. S. Fish and Wildlife Services the writer has discussed the downward trend of the catch of Columbia River Chinook salmon since 1920 and has stated that the decline is doubtl ...
  • 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 ...
  • Rich, Willis H. (Willis Horton), 1885-1972; Oregon. Fish Commission (Salem, Or. : Department of Research, Fish Commission of the State of Oregon, 1940)
    The salmon runs of the Columbia River constitute one of the most important natural resources of the states of Oregon and Washington. Thousands of people are dependent, wholly or in part, upon these resources for their ...
  • Schoning, Robert W.; Merrell, Theodore R.; Johnson, Donald R.; Oregon. Fish Commission (Portland, Or. : Oregon Fish Commission, 1951-11)
    1. The Indians at Celilo Falls catch an average of over 2,600,000 pounds of fish each year, in dip nets in a manner very much the same as used by their ancestors. 2. The bulk of the fish caught at Celilo Falls is from t ...
  • Schoning, Robert W.; Johnson, Donald R.; Oregon. Fish Commission (Portland, Or. : Fish Commission of Oregon, 1956)
    A study was undertaken in the fall of 1948 by the Oregon Fish Commission to determine the possible presence and importance of a delay in the migration of adult chinook salmon (Oncorhynchus tshawytscha) at Bonneville Dam ...
  • Whitmore, Cecil M.; Oregon. Fish Commission (Portland, Or. : Fish Commission of Oregon, 1965)
    An anemia of juvenile chinook salmon (Oncorhynchus tshawytscha) is described and stages of development separated by recognizable syndromes. A vitamin E-deficient diet of low rancidity produced a severe microcytic anemia ...
  • 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 ...
  • 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 ...
  • Rich, Willis H. (Willis Horton), 1885-1972; Oregon. Fish Commission. Research Dept. (Salem, Or. : Department of Research, Fish Commission of the State of Oregon, 1941)
    THE SALMON of the Columbia River have supported an intensive fishery for over seventy years but are now showing unmistakable signs of depletion, and various factors are contributing to the rapid progress of this condit ...
  • Rich, Willis H. (Willis Horton), 1885-1972; Oregon. Fish Commission (Salem, Or. : Department of Research, Fish Commission of the State of Oregon, 1942)
    Exceptional data are available for the study of the salmon runs of the Columbia River in 1938. Detailed figures on catch were supplied by Oregon and Washington in such form that they could readily be combined with the co ...
  • Rich, Willis H. (Willis Horton), 1885-1972; Oregon. Fish Commission (Salem, Or. : Department of Research, Fish Commission of the State of Oregon, 1940)
    A study of the fishery problems raised by the construction of the Grand Coulee Dam on the upper Columbia River was done. Part of the study was to estimate the number of salmon taken in commercial fishery for the purpose ...
  • 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 ...

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