Index Catalog // ScholarsArchive@OSU

The importance of egg size for the diversity of salmonids

Creator:: Leblanc, Camille A.
Abstract:: Understanding the origin and nature of intra specific biodiversity enables us to better conserve and manage animal populations. Biological diversity is seen at different scales and for different traits such as behavior, morphology, physiology, and life history. Behavior is especially important since behavioral changes are believed to precede changes in...
Resource Type:: Dissertation
Full Text:: ……………………………………………….101 4.3 Results of mixed model analyses of covariance on early development of hatchery and

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
Full Text:: The effects of hormones on development of embryonic and

An evaluation of the use of coho salmon presmolts to supplement wild production in Oregon coastal streams

Creator:: Solazzi, Mario F., Nickelson, Thomas E., Johnson, Steven L., and Oregon Department of Fish and Wildlife
Abstract:: We evaluated the effectiveness of using hatchery coho salmon Oncorhynchus kisutch presmolts to rebuild wild populations in Oregon coastal streams. Juvenile and adult populations were monitored in 15 stocked and 15 unstacked streams from summer 1980 until summer 1985. During the summers following the planting of presmolts, the number of...
Resource Type:: Technical Report

Economics of surplus hatchery salmon disposal in Oregon

Creator:: Roberts, Kenneth, 1944- and Oregon State University. Extension Service/Marine Advisory Program
Abstract:: Published 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
Resource Type:: Technical Report
Full Text:: Hatchery Salmon Disposal in Oregon BY KENNETH J. ROBERTS EXTENSION MARINE ECONOMIST OREGON STATE

Spawning salmon surveys and straying of private hatchery coho salmon from Yaquina Bay in coastal watersheds of Oregon, 1982

Creator:: McGie, Alan M. and Oregon. Department of Fish and Wildlife. Fish Division
Abstract:: Gives standard spawning data for salmon in Oregon and adds information "to document straying of private hatchery coho salmon from Oregon Aqua-Foods'(OAF) facility at Yaquina Bay. . . The program was conducted in response to concerns by fisheries managers and the public on the possible long-term effects of interbreeding wild...
Resource Type:: Technical Report
Full Text:: fr . Spawning salmon surveys and straying of private hatchery

Managing adult hatchery summer steelhead for a recreational fishery with reduced hatchery and wild interactions

Creator:: Schemmel, Eva M.
Abstract:: Hatcheries whose purpose is to provide for a recreational fishery must minimize impacts on wild fishes. Management to reduce hatchery and wild interactions is especially important on river systems that contain Endangered Species Act (ESA) listed species. I examined adult hatchery summer steelhead, Oncorhynchus mykiss, behavior, current management and a...
Resource Type:: Masters Thesis
Full Text:: Science presented on March 30, 2009. Title: Managing Adult Hatchery Summer Steelhead for a

Assessing disease impacts of hatcheries on downstream salmonids in the Willamette River Basin, Oregon

Creator:: Jakaitis, Michelle
Abstract:: Hatcheries are often perceived as a source of pathogen amplification, potentially increasing disease risk to free-ranging populations; at the same time, free-ranging fishes may introduce pathogens into hatcheries through untreated water sources. Many pathogens exist naturally within the environment (with the exception of introduced pathogens) and the presence of a...
Resource Type:: Masters Thesis
Full Text:: present in free-ranging hosts to be transmitted through the water supply to hatchery populations

Causality Between Price, Operated Area and Employment in Aquaculture Production

Creator:: Nik Mustapha, Nik Hashim and Nasir, Aslina
Abstract:: The role of aquaculture industry is becoming more prominent in order to supplement marine capture in meeting the food need of the growing population. In an attempt to minimize depletion of marine fisheries only traditional vessels are allowed to fish along the coastal area while bigger vessels are regulated to...
Resource Type:: Conference Proceeding
Full Text:: of the national development strategies in agricultural food sector. Future fisheries policy is

A summary of investigations of the use of hatchery-reared steelhead in the management of a sport fishery

Creator:: Wagner, Harry H. and Oregon State Game Commission
Abstract:: This document contains a result of a study to determine the role of hatchery-reared winter steelhead in steelhead fisheries. The study examines the contribution of these salmon ‘with respect to’ angling intensity, number of fish stocked, contribution of native stocks, and several other factors. It also investigates survival of hatchery-reared...
Resource Type:: Technical Report
Full Text:: HATCHERY-REARED . STEELHEAD IN THE MANAGEMENT OF A SPORT FISHERY by Harry H. Wagner Research

Habitat selection of hatchery and wild juvenile salmonids in Eagle Creek Basin, Oregon

Creator:: Brignon, William R.
Abstract:: To best manage Eagle Creek National Fish Hatchery and minimize any negative impacts that the current hatchery program may be having on Endangered Species Act-listed salmonids in the Eagle Creek Basin, I determined if wild fish are being displaced from preferred habitats by hatchery salmonids Oncorhynchus spp. This thesis had...
Resource Type:: Masters Thesis
Full Text:: Selection of Hatchery and Wild Juvenile Salmonids in Eagle Creek Basin, Oregon Abstract approved

ScholarsArchive@OSU

The importance of egg size for the diversity of salmonids

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

An evaluation of the use of coho salmon presmolts to supplement wild production in Oregon coastal streams

Economics of surplus hatchery salmon disposal in Oregon

Spawning salmon surveys and straying of private hatchery coho salmon from Yaquina Bay in coastal watersheds of Oregon, 1982

Managing adult hatchery summer steelhead for a recreational fishery with reduced hatchery and wild interactions

Assessing disease impacts of hatcheries on downstream salmonids in the Willamette River Basin, Oregon

Causality Between Price, Operated Area and Employment in Aquaculture Production

A summary of investigations of the use of hatchery-reared steelhead in the management of a sport fishery

Habitat selection of hatchery and wild juvenile salmonids in Eagle Creek Basin, Oregon

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