Index Catalog // ScholarsArchive@OSU

The influence of diet and dieldrin on the growth and body composition of underyearling rainbow trout

Creator:: Phillips, Glenn R.
Abstract:: The effects of a sublethal concentration of dieldrin (0. 2 ppb) in the water on the growth and body composition of underyearling rainbow and cutthroat trout held in aquaria and fed different rations of tubificid worms or Oregon moist pellets were studied at Oak Creek Fisheries Research Laboratory, Oregon State...
Resource Type:: Masters Thesis
Full Text:: TROUT Abstract approved: Redacted for Privacy Donald R. Buhler The effects of a sublethal

AFS Position Paper and Policy on Mining and Fossil Fuel Extraction

Creator:: Hughes, Robert M., Amezcua, Felipe, Chambers, David M., Daniel, Wesley M., Franks, James S., Franzin, William, MacDonald, Donald, Merriam, Eric, Neall, George, dos Santos Pompeu, Paulo, Reynolds, Lou, and Woody, Carol Ann
Abstract:: Following a four-year period of writing, member comment, and multiple revisions, the AFS Position Paper and Policy on Mining and Fossil Fuel Extraction was approved unanimously by the membership at the Society's annual business meeting August 19, 2015, in Portland, Oregon. The entire document can be read at fisheries.org/policy_statements; a...
Resource Type:: Article
Full Text:: Springs, MS William Franzin Laughing Water Arts & Science Inc., Winnipeg, Manitoba, Canada Donald

News & Views, 2007

Creator:: Hall, Jim
Resource Type:: Other
Full Text:: collaborative ventures into the John Day, Imnaha, and Umatilla basins of eastern Oregon, the Umpqua, McKenzie

News & Views, 2008

Creator:: Hall, Jim
Resource Type:: Other
Full Text:: Daniel Beason Dale & Joanne Becker Donald Bennett Don & Debra Bennion Stephen Beverly Brad & Stacy

Influence of landscape-scale variables on the age and growth of coastal cutthroat trout Oncorhynchus clarkii clarkii in headwater streams

Creator:: Rehe, William G., Jr.
Abstract:: This thesis provides the first general description of the natural variation in age structure, growth rates, and survival in headwater populations of coastal cutthroat trout Oncorhynchus clarkii clarkii from western Oregon, and a subsequent synthesis of these life-history characteristics across the range of the subspecies. Age, growth, and survival were...
Resource Type:: Masters Thesis

Movement Ecology and Population Dynamics of the Endangered Hawaiian Duck (Anas wyvilliana)

Creator:: Malachowski, Christopher P.
Abstract:: Fundamental objectives in the field of conservation biology involve understanding the processes that influence small and declining populations and applying that knowledge to develop appropriate monitoring strategies and targeted management and conservation actions. Critical first steps in determining the relative role of factors that drive population declines involves estimation of...
Resource Type:: Dissertation
Full Text:: , Stephen Turnbull, Caitlin Wells, Mee-ya Monnin, Marie McKenzie, Marysa Milinichik, Kathy Valier, Sharon

Piscivorous colonial waterbirds in the Columbia River estuary : demography, dietary contaminants, and management

Creator:: Suzuki, Yasuko
Abstract:: Caspian terns (Hydroprogne caspia) and double-crested cormorants (Phalacrocorax auritus) nest in large colonies on East Sand Island in the Columbia River estuary, the largest known colonies for the two species in the world. Both species of piscivorous colonial waterbirds have been identified as predators with a significant impact on the...
Resource Type:: Dissertation
Full Text:: . Donald E. Lyons provided generous assistance with study design, field work, data analysis, and

Modeling abiotic influences on disease dynamics for the complex life cycle of the myxozoan parasite Ceratomyxa shasta

Creator:: Ray, Robert Adam
Abstract:: Most parasites and their hosts live in a balance within their environment; however a disease outbreak can occur when either the parasite, host, or environment, are perturbed. Myxozoan parasites are associated with a wide variety of cultured and wild fish populations. Most myxozoans are relatively benign to their vertebrate host;...
Resource Type:: Dissertation

The effects of environmental stressors on cardiac gene expression and contractility in rainbow trout (Oncorhynchus mykiss)

Creator:: Momoda, Tracey S.
Abstract:: Rainbow trout (Oncorhynchus mykiss) experience a variety of stressors in their natural environment as well as in aquaculture that can have negative effects on their physiology. The effects of physiological stress and endocrine disruption have been well described in fish. However, there is a scarcity of information on the effects...
Resource Type:: Dissertation

Top-down Influences of bald eagles on common murre populations in Oregon

Creator:: Horton, Cheryl A.
Abstract:: Populations of organisms are influenced by both top-down (predator driven) and bottom-up (environment or resource driven) effects. Seabird research has largely focused on bottom-up factors influencing reproduction, with little emphasis on top-down. Our goal was to better understand top-down impacts on colonial nesting seabirds over a range of spatio-temporal scales....
Resource Type:: Masters Thesis
Full Text:: Donald Yeager, you both mean the world to me. To my cousin and surrogate big sister, Jessica Yeager

The effects of hormones on development of embryonic and post embryonic salmonids, and hormone metabolism during these stages

Creator:: Yeoh, Choo-Guan
Abstract:: The importance of hormone reservoirs in mature teleost eggs is unknown. To elucidate the effects of hormones on embryonic development, steelhead trout eggs, Oncorhynchus mykiss, were immersed in either cortisol, testosterone, or thyroxine at two different stages of development. Elevated concentrations of cortisol were detectable in the trout eggs or...
Resource Type:: Masters Thesis

Juvenile coho salmon movement and migration through tide gates

Creator:: Bass, Arthur
Abstract:: Tidal marshlands in the upper estuary ecotone provide essential habitat for juvenile salmonids. In this environment, salmonids grow rapidly and acclimate to saltwater. Worldwide, tidal marshes have been diked and drained to provide agricultural and residential land. Tide gates are one-way doors integrated into dike systems that prevent saltwater flooding...
Resource Type:: Masters Thesis
Full Text:: hardworking field technicians: Justin Arriola, Andrew McClary, John Winkowski, Dave Nelson, and Donald Danesi

California condors in the Pacific Northwest : integrating history, molecular ecology, and spatial modeling for reintroduction planning

Creator:: D'Elia, Jesse
Abstract:: Reintroduction programs are increasingly being used to save animals from extinction and aid in their recovery. The California Condor (Gymnogyps californianus), one of the most endangered birds in the world, is a remarkable example of how reintroduction programs can help rapidly increase a species' population numbers and range following a...
Resource Type:: Dissertation

Spatiotemporal Associations of Abundance and Vital Rates of Co-occurring Small Mammals in a Late Successional Forest

Creator:: Weldy, Matthew J.
Abstract:: Informed conservation of small mammals, ecosystems, and predators requires a detailed understanding of how small mammals species and communities vary in both space and time, as well as the relative cyclicity and synchrony of this variation. This variation can be especially informative to land managers interested in manipulating the abundance...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

The influence of diet and dieldrin on the growth and body composition of underyearling rainbow trout

AFS Position Paper and Policy on Mining and Fossil Fuel Extraction

News & Views, 2007

News & Views, 2008

Influence of landscape-scale variables on the age and growth of coastal cutthroat trout Oncorhynchus clarkii clarkii in headwater streams

Movement Ecology and Population Dynamics of the Endangered Hawaiian Duck (Anas wyvilliana)

Piscivorous colonial waterbirds in the Columbia River estuary : demography, dietary contaminants, and management

Modeling abiotic influences on disease dynamics for the complex life cycle of the myxozoan parasite Ceratomyxa shasta

The effects of environmental stressors on cardiac gene expression and contractility in rainbow trout (Oncorhynchus mykiss)

Top-down Influences of bald eagles on common murre populations in Oregon

The effects of hormones on development of embryonic and post embryonic salmonids, and hormone metabolism during these stages

Juvenile coho salmon movement and migration through tide gates

California condors in the Pacific Northwest : integrating history, molecular ecology, and spatial modeling for reintroduction planning

Spatiotemporal Associations of Abundance and Vital Rates of Co-occurring Small Mammals in a Late Successional Forest

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