Index Catalog // ScholarsArchive@OSU

Changes in size and age at maturity of Columbia River upriver bright fall chinook salmon (Oncorhynchus tshawytscha) : implications for stock fitness, commercial value, and management

Creator:: Beaty, Roy E.
Abstract:: The average size and age of chinook salmon (Oncorhynchus tshawytscha) caught in commercial fisheries along the Pacific Coast of North America have decreased substantially in this century. These declines might be caused in part by changes in size and age at maturity within the stocks contributing to those fisheries. Upriver...
Resource Type:: Masters Thesis
Full Text:: Redacted for Privacy Ibliam J. Liss The average size and age of chinook salmon (Oncorhynchus tshawytscha

Headwater stream macroinvertebrates of the H.J. Andrews Experimental Forest, Oregon

Creator:: Frady, Charles H.
Abstract:: Recent studies of headwater streams have demonstrated their importance to overall watershed biodiversity, nutrient cycling, and energy flux. However, little attention has been paid to long-term effects of forest harvest on macroinvertebrate communities in headwater streams. This study investigated headwater stream macroinvertebrate communities in the H.J. Andrews Experimental Forest, Oregon,...
Resource Type:: Masters Thesis
Full Text:: entering the stream are higher quality resources for macroinvertebrates than coniferous needles (Petersen

Colonization and development of macroinvertebrate communities in laboratory streams

Creator:: Lomnicky, Gregg A.
Abstract:: Laboratory stream communities in simulated old growth second order streams were sampled June 1984 and June 1985 to advance an understanding of their organization and development, and their response to an environmental perturbance, the toxicant dieldrin. An interpenetrating hierarchical view of habitats and community subsystems was taken to conceptualize community...
Resource Type:: Masters Thesis
Full Text:: Macroinvertebrate Communities in Laboratory Streams. Redacted for privacy Abstract approved: 1441.6'am J. Liss

Forests to floodplain meadows : detrital dynamics in two headwater streams

Creator:: Brookshire, E. N. Jack
Resource Type:: Masters Thesis

Effects of exploitation on life-history characteristics of spiny lobster populations (Panulirus homarus) off Oman

Creator:: Alabdulsalaam, Thabit Z.
Abstract:: The purpose of this research was to examine the effects of fishing on life history parameters of the spiny lobster, Panulirus homarus. The study areas selected had different levels of fishing pressure but relatively similar habitats. The lowest fishing effort was found in Hadbin while the highest fishing effort was...
Resource Type:: Masters Thesis
Full Text:: ) off Oman (-Nk Redacted for Privacy Abstract approved: WYllihm J. Liss The purpose of this research

The relationship between stream habitat complexity and anadromous salmonid diversity and habitat selection

Creator:: Chen, Glenn K.
Resource Type:: Dissertation

Ecology of woody riparian vegetation in tributaries of the Upper Grande Ronde River basin, Oregon

Creator:: Lytjen, Danna J.
Abstract:: Two studies on Catherine Creek and Meadow Creek of the Upper Grande Ronde River basin, quantified several physical and biotic influences on woody riparian community composition and structure. The Catherine Creek study examined the association of woody riparian species with elevational and geomorphic gradients. The Meadow Creek study examined the...
Resource Type:: Masters Thesis
Full Text:: Upper Grande Ronde River basin, Oregon AN ABSTRACT OF THE THESIS OF Danna J. Lytjen for the degree of

Improving Pacific oyster (Crassostrea gigas) production through selective breeding

Creator:: Evans, Sanford, 1968-
Abstract:: Shellfish growers have expressed interest in developing high-yielding oyster strains through selective breeding. This dissertation has three objectives to help determine the effects of genetic and environmental variation on production traits (body weight, survival, and yield) of Pacific oysters grown in the Pacific Northwest. Objective 1: Determine if relative family...
Resource Type:: Dissertation
Full Text:: al., 2001; Lee and Petersen, 2003). Oyster aquaculture often involves two distinct management phases

Lamprey of the Goose Lake Basin: A Multi-Scale Habitat & Distribution Analysis

Creator:: Dickey, Jacob C.
Abstract:: Two ecologically important lamprey species found in the endorheic Goose Lake Basin face conservation threats; however, relatively little is known about their habitat needs or spatial distribution. Lamprey and their habitat are often found to be patchy; to evaluate these relationships for the lamprey in this basin, I utilized a...
Resource Type:: Masters Thesis
Full Text:: Melanie J. Davis Two ecologically important lamprey species found in the endorheic Goose Lake Basin

Heterogeneous thermal habitat for northeast Oregon stream fishes

Creator:: Ebersole, Joseph L.
Abstract:: Discrete coldwater patches within warm streams provide potential thermal refuge for coldwater fishes during periods of heat stress. This analysis focused on heterogeneity in stream water temperatures as influenced by local influx of cooler subsurface waters. Using field thermal probes and recording thermistors, we identified and characterized coldwater patches potentially...
Resource Type:: Dissertation
Full Text:: Thermal Habitat for Northeast Oregon Stream Fishes. Abstract approved: William J. Liss Discrete

ScholarsArchive@OSU

Changes in size and age at maturity of Columbia River upriver bright fall chinook salmon (Oncorhynchus tshawytscha) : implications for stock fitness, commercial value, and management

Headwater stream macroinvertebrates of the H.J. Andrews Experimental Forest, Oregon

Colonization and development of macroinvertebrate communities in laboratory streams

Forests to floodplain meadows : detrital dynamics in two headwater streams

Effects of exploitation on life-history characteristics of spiny lobster populations (Panulirus homarus) off Oman

The relationship between stream habitat complexity and anadromous salmonid diversity and habitat selection

Ecology of woody riparian vegetation in tributaries of the Upper Grande Ronde River basin, Oregon

Improving Pacific oyster (Crassostrea gigas) production through selective breeding

Lamprey of the Goose Lake Basin: A Multi-Scale Habitat & Distribution Analysis

Heterogeneous thermal habitat for northeast Oregon stream fishes

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