Browsing Oregon Explorer by Author "Oregon. Fish Commission"

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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 and growth study of Tillamook Bay chum salmon (Oncorhynchus keta)

Henry, Kenneth A.; Oregon. Fish Commission (Portland, Or. : Fish Commission of Oregon, 1954)

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 ...
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 ...
Analysis of factors affecting the production of chum salmon (Oncorhynchus keta) in Tillamook Bay

Henry, Kenneth A.; Oregon. Fish Commission (Portland, Or. : Fish Commission of Oregon, 1953-09)

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 th ...
An application of the control chart method to the analysis of fisheries data

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 ...
The bay clams of Oregon : their economic importance, relative abundance, and general distribution

Marriage, Lowell D.; Oregon. Fish Commission (Portland, Or. : Fish Commission of Oregon, 1954)

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 ...
Columbia River Seal Control Program

Oregon. Fish Commission (Oregon Fish Commission, 1971-02-16)

The purpose of the Oregon Fish Commission's Columbia River Seal Control Program was to harass seals and reduce their predation on salmon in the river. The effectiveness of the program could not be effectively demonstrate ...
Columbia River Seal Control Program

Oregon. Fish Commission (Oregon. Fish Commission, 1972-03-09)

The Oregon Fish Commission funded a seal control program on the Columbia River from 1936-1971. There were bounties offered and a professional hunter hired for periods. This 1972 report reviews the program and found it i ...
Contribution to the biology of the albacore (Germo alalunga) of the Oregon coast and other parts of the North Pacific

Brock, Vernon E.; Oregon. Fish Commission (Salem, Or. : Department of Research, Fish Commission of the State of Oregon, 1944)

The temperate water fisheries for albacore in the North Pacific seem to exploit somewhat similar segments of the respective populations present in the various localities. It is clear that in most of the exploited populat ...
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 ...
Fisheries statistics of Oregon

Oregon. Fish Commission; Cleaver, Fred C. (Frederick Charles), 1916- (Portland, Or. : Oregon Fish Commission, 1951)
The fishery and biology of the Dungeness crab (Cancer magister Dana) in Oregon waters

Waldron, Kenneth D.; Oregon. Fish Commission (Portland, Or. : Fish Commission of Oregon, 1958)

Results of studies beginning in 1947 on the biology of the Dungeness crab (Cancer magister) in Oregon coastal waters are reported. A review is made of the history of the fishery with regard to trend of the catch by magni ...
The future of the Columbia River salmon fisheries

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 ...
Growth and mortality rates of the razor clam (Siliqua patula) on Clatsop beaches, Oregon

Hirschhorn, George; Oregon. Fish Commission (Portland, Or. : Fish Commission of Oregon, 1962)

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 gro ...
The Indian Dip Net Fishery at Celilo Falls on the Columbia River

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 ...
A measured delay in the migration of adult chinook salmon at Bonneville Dam on the Columbia River

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 ...
A microcytic anemia of juvenile chinook salmon resulting from diets deficient in vitamin E

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 ...
Note on the young of the sable fish Anoplopoma fimbria

Brock, Vernon E.; Oregon. Fish Commission (Salem, Or. : Department of Research, Fish Commission of the State of Oregon, 1941)

During an oceanographic cruise of the "E. W. Scripps" in May, 1939, off the coast of Oregon, four small, post-larval specimens of Anoplopoma fimitrita were taken at the surface of the sea with a dip net at two of the h ...
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 ...
Salmon fisheries of the coastal rivers of Oregon south of the Columbia

Gharrett, John T.; Hodges, John I.; Oregon. Fish Commission (Portland, Or. : Oregon Fish Commission, 1950)

In spite of the progressive restrictions of the commercial river fishery during the past fifty years, the trend of the salmon populations of the coastal rivers has been downward. It is almost impossible to isolate and an ...