Index Catalog // ScholarsArchive@OSU

The length of residence of juvenile Fall Chinook salmon in Sixes River, Oregon

Creator:: Reimers, Paul E.
Abstract:: This study was designed to provide life history information about juvenile fall Chinook salmon, Oncorhynchus tshawytscha (Walbaum), in a small coastal river by 1) documenting the length of residence of the juveniles throughout the river, 2) exploring several factors possibly influencing their length of residence, and 3) assessing the relative...
Resource Type:: Dissertation
Full Text:: Anderton for Paul Edward Reimers ACKNOWLEDGEMENTS Mr. R. E. Loeffel originally stimulated my interest

Patterns of interactive segregation in three species of sculpins (Cottus) in western Oregon

Creator:: Finger, Terry Richard
Abstract:: Species interactions and their effect on the use of habitat by benthic fishes were examined in a guild composed of Cottus perplexus, C. rhotheus, and C. beldingi in the Marys River above Philomath, Oregon, and in a constant environment provided by an artificial stream. In the Marys River system, the...
Resource Type:: Dissertation
Full Text:: major professor and committee members, James D. Hall, Carl E. Bond, W. Scott Overton, and C. David

The parr-smolt metamorphosis in steelhead trout as affected by photoperiod and temperature

Creator:: Wagner, Harry Henry
Abstract:: See pdf.
Resource Type:: Dissertation
Full Text:: AND TEMPERATURE IIM/ Frank P. -Conte (Thes Professor Abstract approved: Dr. lames D. Hall (Major

Effects of light, nutrients, and grazing on periphyton communities in streams

Creator:: Gregory, Stanley Vincent
Abstract:: Relative effects of light, nutrients, and grazing on primary production were investigated in streams in the Cascade Mountains of Oregon and in laboratory streams. Relative magnitudes of primary production and associated processes were examined for one year in a stream that flowed through a clearcut and an old-growth forest in...
Resource Type:: Dissertation
Full Text:: Philosophy Completed March 1980 Commencement June 1980 APPROVED: e Professor of Fisheries in charge of

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:: Coast Range Streams Abstract approv James D. Hall Geology influences mainstem channel morphology in

New insights on an old topic : understanding the effects of forest harvest on trout in the context of climate

Creator:: Penaluna, Brooke E.
Abstract:: Studies of the effects of forest harvest on streams and fish have a long history in the Pacific Northwest. Results of this work have prompted development of new forest harvest practices that are more protective of these resources, but the effectiveness of these new practices has not been fully evaluated....
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Brooke E. Penaluna for the degree of Doctor of Philosophy in Fisheries

Contextual systems description of an Oregon coastal watershed

Creator:: Goetze, Brigitte
Abstract:: Many resource management controversies indicate disagreement about the possible intended and unintended effects of management actions on ecosystems. Researchers have documented a variety of negative effects on specific ecosystems, e. g. the degradation of salmonid habitat due to mass wasting (Hagans et al. 1986). While the effects of some management...
Resource Type:: Dissertation
Full Text:: Description of on Oregon Coastal Watershed Abstract approved: Charles E. Warren Many resource management

Prey availability overrides cover in determining growth and abundance of stream-dwelling cutthroat trout

Creator:: Wilzbach, Margaret A.
Abstract:: The abundance and biomass of cutthroat trout (Salmo clarki) have been found to be greater in logged than in forested streams of the Oregon Cascades. Although certain prey taxa increase in abundance following logging, habitat stability generally decreases and cover structures are removed. Research was conducted to examine the manner...
Resource Type:: Dissertation
Full Text:: my major professor, Dr. J.D. Hall, for patience, encouragement, and critical review throughout the

Functional relationships among vegetation, nocturnal insects, and bats in riparian areas of the Oregon Coast Range

Creator:: Ober, Holly K.
Abstract:: Vegetation provides food for many insects, and many insects serve as food for bats. We investigated the linkages among these three trophic levels in riparian areas throughout the Oregon Coast Range by examining the influence of vegetation cover, composition, and structure on the activity of nocturnal insects and bats, the...
Resource Type:: Dissertation
Full Text:: Chapter 2 AN ABSTRACT OF THE DISSERTATION OF Holly K

Classification of Icelandic watersheds and rivers to explain life history strategies of Atlantic salmon

Creator:: Gudjonsson, Sigurdur
Abstract:: A hierarchical classification system of Iceland's watersheds and rivers is presented. The classification is based on Iceland's substrate, climate, water, biota, and human cultural influences. The geological formations of Iceland are very different in character depending on their age and formation history. Three major types of formations occur: Tertiary, Plio-Pleistocene,...
Resource Type:: Dissertation
Full Text:: Abstract approved: 4 Redacted for Privacy Charles E. Warren A hierarchical classification system of

ScholarsArchive@OSU

The length of residence of juvenile Fall Chinook salmon in Sixes River, Oregon

Patterns of interactive segregation in three species of sculpins (Cottus) in western Oregon

The parr-smolt metamorphosis in steelhead trout as affected by photoperiod and temperature

Effects of light, nutrients, and grazing on periphyton communities in streams

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

New insights on an old topic : understanding the effects of forest harvest on trout in the context of climate

Contextual systems description of an Oregon coastal watershed

Prey availability overrides cover in determining growth and abundance of stream-dwelling cutthroat trout

Functional relationships among vegetation, nocturnal insects, and bats in riparian areas of the Oregon Coast Range

Classification of Icelandic watersheds and rivers to explain life history strategies of Atlantic salmon

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