Index Catalog // ScholarsArchive@OSU

Factors affecting the abundance of fall chinook salmon in the Columbia River

Creator:: Van Hyning, Jack M.
Abstract:: A study of the population ecology of Columbia River fall chinook salmon, Oncorhynchus tshawytscha (Walbaum), was made in an attempt to determine the cause of a serious decline in this run which occurred in the early 1950's. Fluctuations in abundance of major salmon runs the North Pacific were examined to...
Resource Type:: Dissertation

Origin and distribution of the fish fauna of the Harney Basin, Oregon

Creator:: Bisson, Peter Andre
Abstract:: A theory of the origin and distribution of fishes in the Harney Basin is presented. Blitzen River, the hydrographically and ecologically isolated creeks, and the upland tributaries of Silvies River all contain populations derived from the basin's Pleistocene connection with Malheur River of the Snake system. Colonization of many streams...
Resource Type:: Masters Thesis
Full Text:: grant from the 0.S. U. Computer Center. David Niess assisted greatly in arranging and interpreting the

Biology of the Rex sole, Glyptocephalus zachirus Lockington, in waters off Oregon

Creator:: Hosie, Michael J.
Abstract:: Data are presented on the life history and population dynamics of rex sole (Glyptocephalus zachirus Lockington) collected from Oregon waters between September 1969 and October 1973. Length-weight relationships vary little between sexes or with time of year. Otolith annuli form primarily from January through May and were used for age...
Resource Type:: Masters Thesis
Full Text:: biologists including Messrs. James Meehan, Gerald Lukas, Bill Barss, Edwin Niska, and Jack Robinson, who

Population ecology of the Columbian white-tailed deer

Creator:: Gavin, Thomas Alan
Abstract:: A population of Columbian white-tailed deer (CWTD) was studied on a refuge (790 ha) in southwestern Washington during 1972-77. Quality of habitat was considered good for these deer and total population size remained between 164-230 as determined by mark-recapture methods during November. Population size declined significantly between the winters of...
Resource Type:: Dissertation
Full Text:: Wight, then Leader of the Oregon Cooperative Wildlife Research Unit, and David Marshall of the U.S

Status and habitat preference of California bighorn sheep on Sheldon National Wildlife Refuge, Nevada

Creator:: Hansen, Michael Charles
Abstract:: A herd of California bighorn sheep (Ovis canadensis californiana), re-introduced to the area of Hell Creek on the Sheldon National Wildlife Refuge in northwestern Nevada, was studied from 15 June 1978 to 20 August 1980. Major vegetation and physiographic types were delineated and described. Habitat preferences were determined from field...
Resource Type:: Masters Thesis
Full Text:: study area. A good deal of credit should also go to people such as: Jim Yoakum and Dr. C. David

Influences of environmental acidification on salmonid reproduction

Creator:: Weiner, Gary S.
Abstract:: Reproduction of salmonid fishes in acidic water was studied using the rainbow trout (Salmo gairdneri). Adult trout were exposed to various levels of hydrogen ion (pH levels 4.5, 5.0, 5.5, and control [6.5 to 7.1]) during the final 6 weeks of reproductive maturation. Reduced survival rates of the progeny of...
Resource Type:: Masters Thesis
Full Text:: . Martin Fitzpatrick and Mr. David Oberbillig. Ms. Adrian Hunter expertly prepared the manuscript

The fishery biology of the weathervane scallop [Pecten (Patinopecten) caurinus Gould, 1850] in Oregon coastal waters

Creator:: Nunez, Jose D.
Abstract:: Samples of weathervane scallops taken on Oregon Department of Fish and Wildlife cruises off Oregon waters during 1981-1982 were analyzed for a comparative growth study. No evidence of internal growth marks were found in the shell structure when analyzed by the acetate peel technique. Internal growth lines formed in the...
Resource Type:: Dissertation
Full Text:: . David McIntire for their advice and review of the manuscript. I wish to thank Mr. Rich Starr of the

News & Views, 1991/12

Creator:: Edge, Dan
Resource Type:: Other
Full Text:: ('51), Clyde Smith ('49), Mel Cummings ('42) & son David, Larry Bright ('64), and Warren Aney ('58

Changes in size and age at maturity of Columbia River upriver bright fall chinook salmon (Oncorhynchus tshawytscha) : implications for stock fitness, commercial value, and management

Creator:: Beaty, Roy E.
Abstract:: The average size and age of chinook salmon (Oncorhynchus tshawytscha) caught in commercial fisheries along the Pacific Coast of North America have decreased substantially in this century. These declines might be caused in part by changes in size and age at maturity within the stocks contributing to those fisheries. Upriver...
Resource Type:: Masters Thesis
Full Text:: -Tribal Fish Commission. Dr. David Hankin Humboldt State University Paul Pedersen and staff at Priest

Growth of juvenile Pacific oysters, Crassostrea gigas (Thunberg) and Manila clams, Tapes japonica (Deshayes) in effluent from salmon-macroalga polyculture system

Creator:: Diaz, Maria Elena, 1958-
Abstract:: Experiments were carried out in fall and winter, 1990 and spring and summer, 1991 , to determine growth and mortality of juvenile Pacific oysters {Crassostrea gigas) in effluent from cultured coho salmon {Oncorhynchus kisutch) , and effluent from salmon in which the red macroalga Palmaria mollis was cultured. Ambient sea...
Resource Type:: Masters Thesis
Full Text:: knowledge and acute insight. I'm also grateful to Dr. Anja Robinson for sharing with me her experience and

ScholarsArchive@OSU

Factors affecting the abundance of fall chinook salmon in the Columbia River

Origin and distribution of the fish fauna of the Harney Basin, Oregon

Biology of the Rex sole, Glyptocephalus zachirus Lockington, in waters off Oregon

Population ecology of the Columbian white-tailed deer

Status and habitat preference of California bighorn sheep on Sheldon National Wildlife Refuge, Nevada

Influences of environmental acidification on salmonid reproduction

The fishery biology of the weathervane scallop [Pecten (Patinopecten) caurinus Gould, 1850] in Oregon coastal waters

News & Views, 1991/12

Changes in size and age at maturity of Columbia River upriver bright fall chinook salmon (Oncorhynchus tshawytscha) : implications for stock fitness, commercial value, and management

Growth of juvenile Pacific oysters, Crassostrea gigas (Thunberg) and Manila clams, Tapes japonica (Deshayes) in effluent from salmon-macroalga polyculture system

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