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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:: lower in 7 - q M O 5IZ a) a,0.1 .0 a C4 IR . 2 X O 0 'LL)a.) ap O c.) •t0 c,O - '0 a Q 4

Creator:: Van Hyning, Jack M. and Oregon. Fish Commission
Abstract:: Reprinted from Bulletin 2 of the Pacific Marine Fisheries Commission (1951).
Resource Type:: Technical Report
Full Text:: THE OCEIN SOON TROLL FISHERY OF OREGON JACK M. VAN HYNING OREGON

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:: Tillamook Bay chum salmon sampled from the landings of the c o m m e r c i a l fishery in 1949 8

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:: is a week-end closure from 6:00 a. m. Saturday until 6:00 p. m. Sunday from August 15 to October 15

Creator:: Korn, Lawrence and Oregon. Fish Commission
Abstract:: The Oregon Fish Commission and Washington Department of Fisheries conducted a cooperative winter steelhead trout (Salmo gairdneri) tagging program on the Columbia River during the winters of 1954-55 and 1955-56. Objectives of the program were: (1) to obtain information on the timing of the various segments of the run; (2)...
Resource Type:: Technical Report
Full Text:: Raymond A. Willis Anthony Netboy, Editorial Consultant Address all correspondence to: Jack M. Van

Creator:: Schoning, Robert W., Johnson, Donald R., and Oregon. Fish Commission
Abstract:: 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 on the Columbia River. Approximately 650 chinook were captured, tagged, and released at the...
Resource Type:: Technical Report
Full Text:: Recoveries of Fall Chinook at Bonneville and Oneonta in 1948 13 2 A Measured Delay in the Migration of

Creator:: Rich, Willis H. (Willis Horton), 1885-1972 and Oregon. Fish Commission
Abstract:: 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 doubtless an indication that the runs of this species...
Resource Type:: Technical Report
Full Text:: THE ANALYSIS OF FISHERIES DATA IN a paper now in press as a Bulletin of the U. S. Fish and Wildlife

Creator:: Marriage, Lowell D. and Oregon. Fish Commission
Abstract:: An average of approximately 200,000 pounds of bay clams were harvested annually in Oregon for the years 1943-49, inclusive. The commercial harvest of bay clams is composed of the gaper, cockle, and softshell clams. The recreational, or noncommercial, harvest of bay clams is composed mainly of the gaper, cockle, softshell,...
Resource Type:: Technical Report
Full Text:: compared with the cockle. The valves have a very shallow cup. Like its close relative M. nasuta this clam

Creator:: Hirschhorn, George and Oregon. Fish Commission
Abstract:: Clatsop Beaches, characterized by flat beach-face slope (1:70) and small sandsize (0.2 mm.), have supported commercial and recreational fisheries for the razor clam (Siliqua patula) for many years. Tracing the linear growth of two year classes through more than one year following set led to a validation of the ring...
Resource Type:: Technical Report
Full Text:: , recruits at three levels of fishing mortality (F) and natural mortality rate (M). For curve A, F = 1.78, M

Creator:: McKernan, Donald L. (Donald Lynn), 1918-1979, Johnson, Donald R., Hodges, John I., and Oregon. Fish Commission
Abstract:: Three factors were found to be significantly correlated with the fluctuations and trends in silver salmon production in Oregon. Logging was found to adversely affect the runs of salmon in later years. Exceptional winter floods seem to produce poor resulting runs. Low summer water flows also appear to produce lower...
Resource Type:: Technical Report
Full Text:: and is TRENDS OF SALMON POPULATION IN OREGON 431 .01h A. m•1438 Ado, 111111."' ...- "NW

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