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Population dynamics, annual food consumption, movements, and dive behaviors of harbor seals, Phoca vitulina richardis, in Oregon

Creator:: Harvey, James T. (James Thomas)
Abstract:: Number of harbor seals, counted on 32 haul-out areas in Oregon, increased by 6 - 8.8 % per year from 1975 - 1983. Percent of seals in bays has increased an average 1.8%/year, from 47% in 1975 to 61% in 1983. Along the central Oregon coast, harbor seals were most...
Resource Type:: Dissertation

Evaluation of combining ability in mosquitofish

Creator:: Pongthana, Nuanmanee
Abstract:: Two replications of a half dial lei cross experiment were performed among four inbred lines of mosquitofish, Gambusia affinis. These inbred lines originated from three random-bred stocks: OR, TX and CD. The experiment was conducted as a completely randomized design. Experimental material consisted of parental lines and F₁ populations maintained...
Resource Type:: Masters Thesis
Full Text:: research proposal and the manuscript. I would especially like to thank Dr. David R. Thomas and Dr. Edwin

A model for understanding the influence of selective and nonselective harvest on fish populations

Creator:: Hirai, Takayuki
Abstract:: To understand the influence of selective harvesting on the adaptive capacity of fish populations in changing environments, a computer simulation model was developed. In the model, hypothetical populations were composed of five different life histories, which were genetically determined. Each life history type had its own rate of survival and...
Resource Type:: Masters Thesis
Full Text:: September 8, 1987 Commencement June 1988 APPROVED: n Redacted for Privacy Associate Prof s r o

Evaluation of responses of sows and their litters to feeding patterns

Creator:: Kwansa, Wilhelmina
Resource Type:: Dissertation
Full Text:: -advisor. A debt of gratitude is owed to Dr. David R. Thomas as a member of the graduate committee and for

ACTFEL phosphor deposition by RF sputtering

Creator:: Ang, Wie Ming
Resource Type:: Masters Thesis
Full Text:: thanks to Professors T. Plant, J. Nibbler, and R. Nielsen for serv ing on my committee. Special thanks

Effect of callipyge gene on lamb growth, carcass characteristics, and meat quality

Creator:: Srinivasan, Haribaskar
Abstract:: Callipyge (CLPG, n=16) and normal (N, n=11) lambs were produced from Polypay dams and Dorset sires heterozygous for the CLPG gene to study the effects of the gene on growth and carcass and meat quality parameters. CLPG lambs had higher average daily gain than N lambs (0.26 vs 0.23 kg/day,...
Resource Type:: Masters Thesis
Full Text:: Haribaskar Srinivasan presented on May 20, 1997 APPROVED: Major Professor, r resenting Animal Sciences

Characteristics of Northern squawfish (Ptychocheilus oregonensis) and feasibility for utilization as human food

Creator:: Lin, Dongdong
Abstract:: The characteristics of Northern squawfish (Ptychocheilus oregonensis) and the feasibility of utilization of this species for human consumption were investigated. In the first experimental phase, the iced storage characteristics of squawfish were determined. Quality changes were monitored over 24 days of storage by chemical, physical, microbiological and sensorial methods of...
Resource Type:: Masters Thesis
Full Text:: . I would also like to thank my committee members Dr. David R. Thomas and Dr. Philip H. Brownell for

Predicting the impacts on residential property values from changes in water quality

Creator:: Doverspike, Mark Steven
Abstract:: Eutrophication is the accelerated aging process of a lake which generally decreases the water quality in terms of aesthetic and recreational uses. At Liberty Lake, near Spokane, Washington, eutrophication has become a problem. Many individuals and agencies are interested in the benefits that occur when the lake's water quality has...
Resource Type:: Masters Thesis
Full Text:: and direction in my academic program and this work. Graduate committee members -- Dr. David R

The influence of parents, mating systems, and planting date on the transfer of gynoecious flowering to Chinese cucumbers (Cucumis sativus L.)

Creator:: Zhang, Qi (Qi Qun), 1956-
Abstract:: Gynoecious inbred lines of cucumbers (Cucumis sativus L.) with high (HF), medium (MF) and low (LF) percentage of gynoecious plants were used in crosses with monoecious Chinese cultivars with high (HN), medium (MN) and low (LN) percentage of nodes with female flowers. F₁ and F₂ progenies from these parents crossed...
Resource Type:: Masters Thesis
Full Text:: (CUCUMIS SATIVUS L.). Abstract approved: ^ ^—^ Dr. A. C. Gabert and .i<r~vw—:—-—ra

Imaging fluorescent determination of energetics of chloroplast division and related matters

Creator:: Zheng, Ping
Abstract:: During exploration of imaging photosynthetic fluorimetry of Arabidopsis thaliana mutants, we discovered a novel phenomenon wherein photosynthetic efficiency (defined in Ning et al., 1995) is shown to plot in discrete groups. This exploration resulted first in the development of a spectrofluorometric method that apparently allows for in vivo observation of...
Resource Type:: Dissertation
Full Text:: . Bent E. Petersen for many years of wise counsel and support in mathematics; Prof. David R. Thomas for

ScholarsArchive@OSU

Population dynamics, annual food consumption, movements, and dive behaviors of harbor seals, Phoca vitulina richardis, in Oregon

Evaluation of combining ability in mosquitofish

A model for understanding the influence of selective and nonselective harvest on fish populations

Evaluation of responses of sows and their litters to feeding patterns

ACTFEL phosphor deposition by RF sputtering

Effect of callipyge gene on lamb growth, carcass characteristics, and meat quality

Characteristics of Northern squawfish (Ptychocheilus oregonensis) and feasibility for utilization as human food

Predicting the impacts on residential property values from changes in water quality

The influence of parents, mating systems, and planting date on the transfer of gynoecious flowering to Chinese cucumbers (Cucumis sativus L.)

Imaging fluorescent determination of energetics of chloroplast division and related matters

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