Index Catalog // ScholarsArchive@OSU

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:: ABSTRACT OF THE DISSERTATION OF Chadwick V. Jay for the degree of Doctor of Philosophy in Fisheries

Multiscale assessment of thermal patterns and the distribution of chinook salmon in the John Day River Basin, Oregon

Creator:: Torgersen, Christian E.
Abstract:: This study examined the distribution and behavior of adult spring chinook salmon (Oncorhynchus tshawytscha) related to patterns of stream temperature and physical habitat at channel unit, reach, and basin-wide spatial scales in both a wilderness stream and a disturbed stream in the John Day River basin in northeastern Oregon. Thermal...
Resource Type:: Masters Thesis
Full Text:: of Chinook Salmon in the John Day River Basin, Oregon AN ABSTRACT OF THE THESIS OF Christian E

Evaluating Multi-Level Models to Test Occupancy State Responses of Plethodontid Salamanders

Creator:: Kroll, Andrew J., Garcia, Tiffany S., Jones, Jay E., Dugger, Katie, Murden, Blake, Johnson, Josh, Peterman, Summer, Brintz, Ben, and Rochelle, Michael
Abstract:: Correction 23 Dec 2015: The PLOS ONE Staff (2015) Correction: Evaluating Multi-Level Models to Test Occupancy State Responses of Plethodontid Salamanders. PLOS ONE 10(12): e0145899. https://doi.org/10.1371/journal.pone.0145899
Resource Type:: Article

Distribution and habitat use of bull trout following the removal of nonnative brook trout

Creator:: Renner, Dirk
Abstract:: Invasion by nonnative brook trout (Salvelinus fontinalis) often results in replacement of bull trout (Salvelinus confluentus) in western North America, but the causal mechanisms are not well understood. Removal of brook trout from 1992 to 2000 from Sun Creek in southern Oregon, provided an opportunity to investigate the changes in...
Resource Type:: Masters Thesis
Full Text:: Bull Trout Following the Removal of Nonnative Brook Trout Abstract approved: Robert E. Gresswell Gary

The feasibility of a consumptive wild trout sport fishery on the North Fork of the Middle Fork of the Willamette River

Creator:: Nicholas, Jay W.
Abstract:: The objective of this study was to determine whether wild populations of trout in the North Fork of the Middle Fork of the Willamette River can support a catch rate of 0.3-0.5 trout per hour at current levels of effort and to predict how different size and bag limits would...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Jay Woodburn Nicholas for the

Habitat use, movement, and life history variation of coastal cutthroat trout, Oncorhynchus clarkii clarkii, in the Salmon River estuary, Oregon

Creator:: Krentz, Lisa K.
Abstract:: Anadromous coastal cutthroat trout Oncorhynchus clarkii clarkii may be highly dependent on estuaries, passing through them multiple times during their lifetime. However, few studies have investigated estuarine use by coastal cutthroat trout and it is often thought that estuaries serve primarily as migration corridors rather than rearing areas. We used...
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGEMENTS I sincerely thank my graduate committee: Hiram Li, Ian Fleming, Dan Bottom, and Kim Jones

Spatio-temporal Patterns and Ecological Drivers of Harbor Porpoise (Phocoena phocoena) off the Central Oregon Coast, USA

Creator:: Holdman, Amanda
Abstract:: The marine environment is under increasing pressure from human activities worldwide, particularly in coastal waters, creating a need to better understand fine-scale distributions of highly mobile species that occur in the area, as they are frequently most threatened. Harbor porpoise (Phocoena phocoena) occur frequently in Oregon’s nearshore habitat, but due...
Resource Type:: Masters Thesis
Full Text:: after work Hefeweizen. Thank you Julia Jones, for your encouraging confidence boosts and supporting me

Top-down Influences of bald eagles on common murre populations in Oregon

Creator:: Horton, Cheryl A.
Abstract:: Populations of organisms are influenced by both top-down (predator driven) and bottom-up (environment or resource driven) effects. Seabird research has largely focused on bottom-up factors influencing reproduction, with little emphasis on top-down. Our goal was to better understand top-down impacts on colonial nesting seabirds over a range of spatio-temporal scales....
Resource Type:: Masters Thesis
Full Text:: better mentors. To my committee members, Patricia Kennedy and Julia Jones, thank you for your

The Influence of Wildfire and Invasive Vegetation on Mule Deer

Creator:: Schuyler, Elizabeth
Abstract:: The western United States has experienced large-scale degradation due to land use and land cover changes, invasion of annual grasses, and expansion of woody plants into grass and shrublands and the resultant altered fire regimes. These landscape-scale changes have coincided with declining mule deer (Odocoileus hemionus) populations, making habitat loss...
Resource Type:: Dissertation
Full Text:: ). 4 Literature Cited Archer, S. R., E. M. Andersen, K. I. Predick, S. Schwinning, R. J

Foraging Niche Separation of Adélie (Pygoscelis adeliae) and Gentoo (P. papua) Penguins During the Breeding Season at Palmer Station, Antarctica

Creator:: Pickett, Erin
Abstract:: Climate-induced range overlap can result in novel interactions between similar species and potentially lead to competitive exclusion. The Western Antarctic Peninsula is one of the most rapidly warming regions on Earth and is experiencing a poleward climate migration. This transition from a polar to sub-polar environment has resulted in a...
Resource Type:: Masters Thesis
Full Text:: . Julia Jones and Dr. Leigh Torres, for guiding me along the sometimes challenging path of spatial

ScholarsArchive@OSU

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

Multiscale assessment of thermal patterns and the distribution of chinook salmon in the John Day River Basin, Oregon

Evaluating Multi-Level Models to Test Occupancy State Responses of Plethodontid Salamanders

Distribution and habitat use of bull trout following the removal of nonnative brook trout

The feasibility of a consumptive wild trout sport fishery on the North Fork of the Middle Fork of the Willamette River

Habitat use, movement, and life history variation of coastal cutthroat trout, Oncorhynchus clarkii clarkii, in the Salmon River estuary, Oregon

Spatio-temporal Patterns and Ecological Drivers of Harbor Porpoise (Phocoena phocoena) off the Central Oregon Coast, USA

Top-down Influences of bald eagles on common murre populations in Oregon

The Influence of Wildfire and Invasive Vegetation on Mule Deer

Foraging Niche Separation of Adélie (Pygoscelis adeliae) and Gentoo (P. papua) Penguins During the Breeding Season at Palmer Station, Antarctica

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