Index Catalog // ScholarsArchive@OSU

Food consumption and growth of the larvae of the Pacific oyster (Crassostrea gigas)

Creator:: Malouf, Robert E.
Abstract:: 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...
Resource Type:: Masters Thesis

Salmon recovery in the Pacific Northwest : defining what constitutes a wild salmon

Creator:: Courter, Ian I.
Abstract:: In spite of considerable efforts to restore natural runs of anadromous salmonids in the Pacific Northwest, they remain at risk of extirpation. Along with many other factors influencing the decline, stocking from hatcheries over the past hundred years is often suggested to be a major cause. The listing of over...
Resource Type:: Masters Thesis
Full Text:: considerable efforts to restore natural runs of anadromous salmonids in the Pacific Northwest, they remain at

Virulence characteristics of infectious pancreatic necrosis virus (IPNV) in brook trout, Salvelinus fontinalis, fry

Creator:: Maret, Joseph J.
Abstract:: Infectious pancreatic necrosis (IPN) is an acute, contagious disease of trout fry and fingerlings caused by viruses of the family birnaviridae. IPN disease usually results in mortality that is inversely proportional to the age of the fish. While many studies have been carried out to increase our understanding of IPN,...
Resource Type:: Masters Thesis
Full Text:: its virulence characteristics for some subtypes common to the Pacific Northwest region of the

Fall directions and breakage of riparian trees along streams in the Pacific Northwest

Creator:: Sobota, Daniel J.
Abstract:: In the Pacific Northwest, regulatory agencies have recently implemented management strategies for restoration and maintenance of wood recruitment to streams over time. This allochthonous organic material is a critical component in the geomorphic and biological structure of forested streams. Mathematical models are commonly used to evaluate long-term wood dynamics in...
Resource Type:: Masters Thesis
Full Text:: Directions and Breakaqe of Riparian Trees alonq Streams in the Pacific Northwest Stanley V. c rego In the

The ecology of wild turkey (Meleagris gallopavo) foraging in Pacific Northwest ecosystems

Creator:: Evans-Peters, Sara Tondee
Abstract:: Wild turkeys (Meleagris gallopavo) were first successfully introduced into Oregon and Washington in the 1960s; the population has grown in size and expanded in distribution to a point where it provides an important recreational hunting opportunity in both states that generates significant funds for habitat conservation and contributes financially to...
Resource Type:: Masters Thesis
Full Text:: of Wild Turkey (Meleagris gallopavo) Foraging in Pacific Northwest Ecosystems Abstract

Coexistence of top predators in headwater streams : pathways of intraguild predation between Pacific Giant salamander larvae and cutthroat trout

Creator:: Rundio, David E.
Abstract:: The coexistence of multiple predators may have important consequences for the structure and function of communities. Interactions between predators may strongly affect their combined direct and indirect effects on prey populations and lower trophic levels. Predators often have size-structured populations, which may result in intraguild predation characterized by complex trophic...
Resource Type:: Masters Thesis
Full Text:: predation. In Pacific Northwest forested ecosystems, Pacific giant salamanders (Dicamptodon tenebrosus

Habitat characteristics associated with abundance of band-tailed pigeons and use of mineral sites in the Pacific Northwest

Creator:: Overton, Cory T.
Abstract:: Index counts for the Pacific Coast race of the band-tailed pigeon (Columba fasciata monilis) have declined by -2% per year since survey efforts began in the 1950's and 60's. Mineral sites, important resources with high ion concentrations, are regularly visited by band-tailed pigeons which nest in surrounding forest lands. I...
Resource Type:: Masters Thesis
Full Text:: Northwest. Index counts for the Pacific Coast race of the band-tailed pigeon ( Columba fasciata monilis

Fluctuations of year-class strength in petrale sole (Eopsetta jordani) and their relation to environmental factors

Creator:: Castillo, Gonzalo C.
Abstract:: The effects of potential parental egg production and environmental factors on year-class strength (YCS) of petrale sole (Eopsetta jordani) were investigated in two areas off Oregon and Washington (Pacific States Marine Fisheries Commission areas 2B: 42° 50'N - 44°18'N, and 3A: 45° 46'N - 47°20'N). Indices of YCS based on...
Resource Type:: Masters Thesis

Effects of Current Hatchery Practices on Salmon Odor Recognition and Responses

Creator:: Lemanski, Joseph R.
Abstract:: Salmon hatcheries have been utilized throughout the Pacific Northwest for many decades to mitigate losses, supplement natural spawning populations, and to provide tribal, sport and commercial fishing opportunities. Currently, there is substantial debate on their efficacy and the potential threats hatchery-reared salmonids pose to natural populations. These concerns have lead...
Resource Type:: Masters Thesis
Full Text:: . Noakes Salmon hatcheries have been utilized throughout the Pacific Northwest for many decades

Development of the fisheries of the Eastern North Pacific : a natural-cultural systems perspective

Creator:: Deimling, Elisabeth A.
Abstract:: The eastern margin of the Eastern North Pacific Ocean was classified into physiographic regions based on a suite of physical characteristics. Information on cultural and biological characteristics of this area was meshed with this classification. The result was a classification of the Eastern North Pacific into natural-cultural systems whose boundaries...
Resource Type:: Masters Thesis
Full Text:: south off the Pacific Northwest and California. This latter phenomenon is most pronounced in summer

ScholarsArchive@OSU

Food consumption and growth of the larvae of the Pacific oyster (Crassostrea gigas)

Salmon recovery in the Pacific Northwest : defining what constitutes a wild salmon

Virulence characteristics of infectious pancreatic necrosis virus (IPNV) in brook trout, Salvelinus fontinalis, fry

Fall directions and breakage of riparian trees along streams in the Pacific Northwest

The ecology of wild turkey (Meleagris gallopavo) foraging in Pacific Northwest ecosystems

Coexistence of top predators in headwater streams : pathways of intraguild predation between Pacific Giant salamander larvae and cutthroat trout

Habitat characteristics associated with abundance of band-tailed pigeons and use of mineral sites in the Pacific Northwest

Fluctuations of year-class strength in petrale sole (Eopsetta jordani) and their relation to environmental factors

Effects of Current Hatchery Practices on Salmon Odor Recognition and Responses

Development of the fisheries of the Eastern North Pacific : a natural-cultural systems perspective

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