Index Catalog // ScholarsArchive@OSU

Linking Moral Obligations, Assumption-based Research, and Structured Decision Making to Inform Bull Trout Recovery

Creator:: Brignon, William R.
Abstract:: More than 1500 species of plants and animals in the United States are listed as threatened or endangered under the Endangered Species Act (ESA). The U.S. Departments of Interior and Commerce are required, under Section 4(f)(1) of the ESA, to develop recovery plans for ESA-listed species under the respective agency...
Resource Type:: Dissertation
Full Text:: Carl B. Schreck More than 1500 species of plants and animals in the United States are listed as

Spatial and temporal characteristics of bottom-trawl fish assemblages of the continental shelf and upper slope of the Pacific Coast of the United States, 1977-1992

Creator:: Jay, Chadwick V.
Abstract:: Twenty-three bottom-trawl fish assemblages were identified from the relative biomass of 33 dominant species that occurred in the National Marine Fisheries Services' triennial trawl surveys over the continental shelf and upper slope off California, Oregon, and Washington from 1977 to 1992. The assemblages accounted for about 70% of the total...
Resource Type:: Dissertation
Full Text:: assemblages of the continental shelf and upper slope of the Pacific Coast of the United States, 1977-1992 AN

The effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies

Creator:: Miller, Scott W.
Abstract:: I used current water management practices in central and eastern Oregon and Washington as natural experiments to quantify the effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies. Reduced discharge had direct (e.g. decreased velocity and wetted habitat) and indirect (e.g. increased conductivity and temperature) effects...
Resource Type:: Dissertation
Full Text:: desire for more sustainable water resource management. I owe a great debt of gratitude to my two

Discharge and its consequences to physical habitat and trout populations in the Deschutes River of central Oregon

Creator:: Walks, Deborah J.
Resource Type:: Masters Thesis
Full Text:: water temperature and physical habitat. Table 1: Summary of research on the relationship between

Effects of atrazine on olfactory-mediated behaviors in Pacific lamprey (Entosphenus tridentatus)

Creator:: Smith, April G.
Abstract:: Pacific lamprey (Entosphenus tridentatus) are experiencing population declines throughout their range. Xenobiotics could be an important risk factor for lamprey populations. Our goal was to establish if common herbicides, as used in forest management, could affect reproductive fitness. We determined that atrazine was a likely compound of greatest concern to...
Resource Type:: Masters Thesis
Full Text:: . Proceedings of the National Academy of Sciences of the United States of America 95:14843-14847. 12

Evaluation of a U.S. West coast groundfish habitat conservation regulation via analysis of spatial and temporal patterns of trawl fishing efforts

Creator:: Bellman, Marlene A.
Abstract:: Recent emphasis on linkages between essential fish habitat and fish stock productivity has raised concerns about the management of fishing activities such as trawling, which have the potential to impact fish habitat. Knowing specifically where and how intensively trawl effort has occurred over time provides ecologists with the necessary background...
Resource Type:: Masters Thesis
Full Text:: Pacific States Marine Fisheries Commission (PSMFC). PacFin is an excellent example of a state-federal

Influence of water temperature and beaver ponds on Lahontan cutthroat trout in a high-desert stream, southeastern Oregon

Creator:: Talabere, Andrew G.
Abstract:: The distribution of Lahontan cutthroat trout Oncorhynchus clarki henshawi was assessed in a high-desert stream in southeastern Oregon where beaver Castor canadensis are abundant. Longitudinal patterns of beaver ponds, habitat, temperature, and Lahontan cutthroat trout age group distribution were identified throughout Willow Creek. Three distinct stream segments were classified based...
Resource Type:: Masters Thesis
Full Text:: were listed in 1975 as threatened by the United States Fish and Wildlife Service (Office of Federal

Temporal Variation in the Prey Resource Portfolio of Juvenile Salmonids During Freshwater Rearing

Creator:: Brady, Megan E.
Abstract:: Freshwater rearing is a critical period in the life cycle of anadromous salmonids, known to produce carry-over effects mediating long-term growth and survival. Freshwater growth is primarily determined by food availability and temperature. While many species of salmon rear in freshwater for a full year or longer, most trophic ecology...
Resource Type:: Masters Thesis
Full Text:: macroinvertebrates in North America with particular reference to the Southeastern United States. Journal of the

Identifying Environmentally Relevant Abundances and Characteristics of Internalized Microplastics in Northern California Current Zooplankton

Creator:: Bolm, Anna E.
Abstract:: Microplastics are ubiquitous in our oceans, yet we are still clarifying what risks they pose to marine organisms, which can be challenging due to their trait diversity and spatial patchiness. Laboratory-based studies assessing risk demonstrate that many marine animals internalize microplastics, either actively through ingestion or passively via respiration. However,...
Resource Type:: Masters Thesis
Full Text:: west coast of the United States between Cape Meares, Oregon (45.48 °N) and Trinidad Head, California

Toxicity of the water-soluble fraction of crude oil and partially combusted crude oil to inland silverside, Menidia beryllina

Creator:: Kristanto, Shinta W.
Resource Type:: Masters Thesis
Full Text:: coastal regions of the continental United States (Hemmer et al., 1992). The inland 4 silverside

ScholarsArchive@OSU

Linking Moral Obligations, Assumption-based Research, and Structured Decision Making to Inform Bull Trout Recovery

Spatial and temporal characteristics of bottom-trawl fish assemblages of the continental shelf and upper slope of the Pacific Coast of the United States, 1977-1992

The effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies

Discharge and its consequences to physical habitat and trout populations in the Deschutes River of central Oregon

Effects of atrazine on olfactory-mediated behaviors in Pacific lamprey (Entosphenus tridentatus)

Evaluation of a U.S. West coast groundfish habitat conservation regulation via analysis of spatial and temporal patterns of trawl fishing efforts

Influence of water temperature and beaver ponds on Lahontan cutthroat trout in a high-desert stream, southeastern Oregon

Temporal Variation in the Prey Resource Portfolio of Juvenile Salmonids During Freshwater Rearing

Identifying Environmentally Relevant Abundances and Characteristics of Internalized Microplastics in Northern California Current Zooplankton

Toxicity of the water-soluble fraction of crude oil and partially combusted crude oil to inland silverside, Menidia beryllina

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