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Creator:: Henry, Kenneth A. and Oregon. Fish Commission
Abstract:: Ages were determined for 65 fish from the 1947 run and for 287 fish from the 1949 run. In 1947 the percentage composition by age was as follows: 32.3 percent 3-year-old fish, 66.2 percent 4-year-old fish, and 1.5 percent 5-year-old fish. An approximate 95 percent confidence interval for the true...
Resource Type:: Technical Report
Full Text:: Age and Growth Study of Tillamook Bag Chum Salmon (Oncorhynchus

Creator:: Henry, Kenneth A. and Oregon. Fish Commission
Abstract:: Tillamook Bay chum salmon are caught commercially by gill-nets, both set and drift, and from 1928 through 1949 the landings have averaged 819,689 pounds per season. More chum salmon are caught on Tillamook Bay than on the rest of the Oregon coastal rivers combined. These fish enter the ocean only...
Resource Type:: Technical Report
Full Text:: Analysis of factors Affecting the Production of Chum Salmon

Creator:: Marr, John C. and Oregon. Fish Commission
Abstract:: 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 scales were examined. All fish had gone to sea early in their first year; and 70.5 percent...
Resource Type:: Technical Report
Full Text:: (Walbaum); and the chum (dog) salmon, 0. /seta (Walbaum). Pink (humpback) salmon, 0. gorbuscha (Walbaum

Creator:: Wood, James W., Ordal, Erling Josef, 1906-, and Oregon. Fish Commission
Abstract:: 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, tuberculosis was found not only in adult spring chinook but in silver salmon (0. kisutch), blueback salmon (0....
Resource Type:: Technical Report
Full Text:: some cases 100 per cent. Tuberculosis was absent in the small number of silver and chum salmon examined

Creator:: Whitmore, Cecil M. and Oregon. Fish Commission
Abstract:: 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 with strong immature red cell response and granulocytosis occurring 2 to 4 weeks before a drop in hemoglobin and hematocrit...
Resource Type:: Technical Report
Full Text:: A MICROCYTIC ANEMIA OF JUVENILE CHINOOK SALMON RESULTING FROM

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