This report covers a range of information about shellfish, including the populations of clams in Yaquina & Tillamook bays, the Pacific Oyster mortality event in Coos bay (with a hand-drawn map of Coos Bay), testing of different crab baits, and different statistics about the Coquille River Crab Fishery. This report...
This document is a summary of the March 1968 meeting to determine the cause of an oyster mortality incident. It answers several questions about criteria for establishing the causative organism and discusses programs for studying oyster mortalities.
The food consumption and growth of Pacific oyster larvae were studied in three experiments making use of a constant flow apparatus. The apparatus maintained a continuous flow of various densities of
algae through test chambers containing different numbers of larvae in a factorial design. Three additional experiments were conducted in...
Published October 1972. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the Sea Grant Catalog: http://seagrant.oregonstate.edu/publications
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...
Oysters (all species combined). in terms of ex-vessel value, currently rank seventh largest among all seafood species landed in the United States, following shrimp, salmon, tuna, crab, lobster, and menhaden.
The supply of domestic hatchery seed for oyster propagation is not sufficient to meet the potential demand at current market...
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...
Vibrio parahaemolyticus is a seafood-borne pathogen that can cause gastroenteritis in humans. This study investigated the effectiveness of refrigerated seawater (5°C) depuration on reducing V. parahaemolyticus in raw Pacific oysters (Crassostrea gigas). Raw Pacific oysters were inoculated with a mixed culture of five clinical strains of V. parahaemolyticus and depurated...
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...