Index Catalog // ScholarsArchive@OSU

Creator:: Gray, Matthew W.
Abstract:: Marine bivalves are globally recognized as ecologically and commercially valuable species and, for over a century, researchers have been studying their feeding, digestion and other related physiological processes. These studies have shown that marine bivalves have complex feeding and particle processing behaviors to maximize growth in dynamic environmental conditions. Additionally,...
Resource Type:: Dissertation
Full Text:: non-native yet dominant commercial oyster species, the Pacific oyster Crassostrea gigas. From these

Creator:: Lannan, James E.
Abstract:: Variances among individuals within populations are influenced by environmental and genetic factors. Utilizing quantitative genetic theory, environmental and genetic components of variance have been compartmented for a variety of quantitative characters of the Pacific oyster, Crassostrea gigas. A significant genetic component of variance in a quantitative attribute related to reproductive...
Resource Type:: Dissertation

Creator:: Aagesen, Alisha M.
Abstract:: Vibrio parahaemolyticus is a Gram-negative, halophilic, human pathogenic bacterium ubiquitous in the marine environment. Like many Vibrio species, V. parahaemolyticus commonly associates with shellfish, particularly oysters. Ingestion of a raw or under cooked oysters contaminated with V. parahaemolyticus can cause gastroenteritis, which is typically self-limiting and rarely causes death. Globally,...
Resource Type:: Dissertation
Full Text:: the Pacific Oyster, Crassostrea gigas. Abstract approved

Creator:: Matson, Sean Erik
Abstract:: This dissertation develops mixed family selection for Pacific oysters using marker-based pedigree reconstruction. It focuses on improving the efficiency of parentage assignment, determining the optimum life stage to mix oyster families for rearing and selection, comparing mixed-family and separate-family selective breeding in the field, and applying the mixed method to...
Resource Type:: Dissertation
Full Text:: Method for the Pacific Oyster (Crassostrea gigas) Abstract approved

Creator:: Chen, Chao
Abstract:: Vibriosis caused by the bacterial pathogen Vibrio tubiashii is one of several factors contributing to mass larval mortalities of the Pacific oyster (Crassostrea gigas) in Pacific Northwest shellfish hatcheries in recent years. Genetically improved strains of the Pacific oyster resistant to V. tubiashii would be highly desirable. This study investigates...
Resource Type:: Dissertation
Full Text:: larval mortalities of the Pacific oyster (Crassostrea gigas) in Pacific Northwest shellfish hatcheries

Creator:: Stick, David A.
Abstract:: The United States Pacific Northwest is well known for its shellfish farming. Historically, commercial harvests were dominated by the native Olympia oyster, Ostrea lurida, but over-exploitation, habitat degradation, and competition and predation by non-native species has drastically depleted their densities and extirpated many local populations. As a result, shellfish aquaculture...
Resource Type:: Dissertation
Full Text:: populations. As a result, shellfish aquaculture production has shifted to the introduced Pacific oyster

Creator:: Lang, Robert Paul
Abstract:: Summer mortality of farmed Pacific oysters causes financial losses for shellfish growers, and selective breeding to improve survival of offspring is a promising way to reduce losses. This dissertation has two objectives to assist the development of tools for use in selective breeding programs. Objective 1: Identify candidate genes for...
Resource Type:: Dissertation
Full Text:: Field Performance of Pacific Oyster Crassostrea gigas Families in Coastal Waters Abstract approved

Creator:: Wolhowe, Matthew D.
Abstract:: A three-part study was conducted into the impact of physiological and ecological variables on the net isotopic fractionation of hydrogen, α[subscript K₃₇], expressed in C₃₇ alkenones. First, alkenone-producer production, abundance, and export were characterized in the summertime Gulf of California and Eastern Tropical North Pacific using compound-specific, labeled in situ...
Resource Type:: Dissertation
Full Text:: Eastern Tropical North Pacific using compound- specific, labeled in situ incubations. It was found that

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