Index Catalog // ScholarsArchive@OSU

Applications of slow-moving autonomous platforms for passive acoustic monitoring and density estimation of marine mammals

Creator:: Fregosi, Selene
Abstract:: Advances in mobile autonomous vehicles for oceanographic sensing provide new opportunities for passive acoustic monitoring of marine mammals. Acoustically equipped mobile autonomous platforms, including gliders, deep-water profiling floats, and drifting surface buoys can survey for a variety of marine mammal species over intermediate spatiotemporal scales. Additionally, such mobile platforms may...
Resource Type:: Dissertation
Full Text:: for the degree of Doctor of Philosophy in Wildlife Science presented on May 1, 2020. Title

Long Term Trends and Sources of Sound in United States Waters

Creator:: Haver, Samara M.
Abstract:: Passive acoustic monitoring is a valuable tool for observing the status of marine environments. Comparisons of underwater soundscapes over temporal and spatial scales can provide data to inform marine conservation efforts, including protection of threatened and endangered species. This dissertation utilizes passive acoustic data collected via a broadly spaced array...
Resource Type:: Dissertation
Full Text:: , Ocean, and Atmospheric Sciences, Oregon Lottery Graduate Scholarship, and the Oregon Chapter of the

The Genetics of Larval Fitness in the Pacific Oyster: Responses to Acidified Seawater and Temporally Dynamic Selection Processes

Creator:: Durland, Evan R.
Abstract:: The Pacific Oyster (Crassostrea gigas) is one of the most economically and ecologically significant shellfish species worldwide. In the Pacific Northwest United States (PNW), the sustainability oyster stocks is increasingly threatened by ocean acidification (OA), which has had significant negative effects on the aquaculture industry in this region over the...
Resource Type:: Dissertation
Full Text:: , Oregon State University, Newport, Oregon 97365 2College of Earth, Ocean, and Atmospheric Sciences

The Influence of Wildfire and Invasive Vegetation on Mule Deer

Creator:: Schuyler, Elizabeth
Abstract:: The western United States has experienced large-scale degradation due to land use and land cover changes, invasion of annual grasses, and expansion of woody plants into grass and shrublands and the resultant altered fire regimes. These landscape-scale changes have coincided with declining mule deer (Odocoileus hemionus) populations, making habitat loss...
Resource Type:: Dissertation
Full Text:: Schuyler for the degree of Doctor of Philosophy in Wildlife Science presented on June 4, 2020. Title

Heterogeneous thermal habitat for northeast Oregon stream fishes

Creator:: Ebersole, Joseph L.
Abstract:: Discrete coldwater patches within warm streams provide potential thermal refuge for coldwater fishes during periods of heat stress. This analysis focused on heterogeneity in stream water temperatures as influenced by local influx of cooler subsurface waters. Using field thermal probes and recording thermistors, we identified and characterized coldwater patches potentially...
Resource Type:: Dissertation
Full Text:: of Doctor of Philosophy in Fisheries Science presented on November 9, 2001. Title: Heterogeneous

The influence of geology and timber harvest on channel morphology and salmonid populations in Oregon coast range streams

Creator:: Hicks, Brendan J.
Resource Type:: Dissertation
Full Text:: . Hicks for the degree of Doctor of Philosophy in Fisheries Science presented on August 17. 1989. Title

Population and behavioral responses of small mammals to silviculture and downed wood treatments in the Oregon Coast Range

Creator:: Waldien, David L.
Abstract:: Forest managers are challenged to provide timber revenues and other resources for society while protecting and enhancing components of biodiversity that are often associated with older forests or older forest structure, such as dead wood. We examined small mammal response to timber harvest in stands 8-10 years following group-selection, two-story,...
Resource Type:: Dissertation
Full Text:: . Waldien for the degree of Doctor of Philosophy in Wildlife Sciences presented on February 15, 2005. Title

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
Full Text:: : Major Professor, representing Fisheries Science Head of the Department of Fisheries

The Factors Affecting the Diets of Groundfish in the Gulf of Alaska : Ecological and Modeling Considerations

Creator:: Thompson, Kevin A.
Abstract:: Marine systems undergo changes in community composition over time as a result of a variety of environmental and anthropogenic factors. Understanding these community changes and the factors that drive them is critical for ecosystem management of marine resources. The Gulf of Alaska (GOA) is a large marine ecosystem that includes...
Resource Type:: Dissertation
Full Text:: Canadian Journal of Fisheries and Aquatic Sciences Canadian Science Publishing (NRC Research Press), 65

Evaluating the Efficacy of Predicting Bycatch Mortality Using Reflex Impairment through an Assessment of Crab Discards

Creator:: Yochum, Noëlle
Abstract:: All animals that interact with fishing gear are not necessarily captured, and all animals that are captured are not necessarily retained. Fishing practices and gear configuration, management regulations, and markets dictate which animals ultimately are retained or discarded. The impact of a fishery and the efficacy of management regulations can...
Resource Type:: Dissertation
Full Text:: Noëlle Yochum for the degree of Doctor of Philosophy in Fisheries Science presented on May 20, 2016

ScholarsArchive@OSU

Applications of slow-moving autonomous platforms for passive acoustic monitoring and density estimation of marine mammals

Long Term Trends and Sources of Sound in United States Waters

The Genetics of Larval Fitness in the Pacific Oyster: Responses to Acidified Seawater and Temporally Dynamic Selection Processes

The Influence of Wildfire and Invasive Vegetation on Mule Deer

Heterogeneous thermal habitat for northeast Oregon stream fishes

The influence of geology and timber harvest on channel morphology and salmonid populations in Oregon coast range streams

Population and behavioral responses of small mammals to silviculture and downed wood treatments in the Oregon Coast Range

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

The Factors Affecting the Diets of Groundfish in the Gulf of Alaska : Ecological and Modeling Considerations

Evaluating the Efficacy of Predicting Bycatch Mortality Using Reflex Impairment through an Assessment of Crab Discards

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