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The biology of a shallow-water methane vent

Creator:: Juhl, Andrew R.
Abstract:: In September of 1989, the site of an active seafloor methane vent was confirmed approximately 20 km off the coast of Oregon in shelf waters 135 m deep. The location of the vent had been described to Oregon State University oceanographers by a local commercial fisherman. Preliminary observations in 1989...
Resource Type:: Masters Thesis
Full Text:: Completed November 8, 1991 Commencement June 1992 APPROVED: Associate Eróessó(of Oceanography in charge

Life history, production, and food resources of the deposit-feeding polychaete Euzonus mucronata (Treadwell) on an Oregon coastal sand beach

Creator:: Kemp, P. F.
Resource Type:: Dissertation
Full Text:: Doctor o Philosophy in Oceanography presented on April 30, 1985 Title: Life History. Production, and

Inner-shelf circulation off the central Oregon Coast

Creator:: Kirincich, Anthony R.
Abstract:: Inner-shelf circulation and mechanisms of across-shelf transport of water masses were examined using seven years of observations collected by the Partnership for Interdisciplinary Studies of Coastal Oceans (PISCO) program, a long-term monitoring effort along the central Oregon coast. Since 1998, moored velocity and hydrographic measurements have been obtained during the...
Resource Type:: Dissertation
Full Text:: degree of Doctor of Philosophy in Oceanography presented on May 24, 2007. Title: Inner-shelf

Movement Patterns of Rockfishes at the Redfish Rocks Marine Reserve, Oregon

Creator:: Calvanese, Thomas P.
Abstract:: The effects of Marine protected areas (MPAs) on adult fish populations depend on the degree of protection provided, which is partly a function of MPA size and the spatial extent of fish movements. The Redfish Rocks Marine Reserve (RRMR) and MPA, located on the south coast of Oregon near Port...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Thomas P. Calvanese for the degree of Master of Science in Fisheries

Coral-reef fishes : insights into larval dispersal and invasion ecology

Creator:: Pusack, Timothy J.
Abstract:: Because many coral-reef fishes are observable in situ, are amenable to transplantation, have small home ranges and short generation times, they provide a excellent system to investigate many topics within general ecology, fisheries biology, and conservation biology. The primary goal of this dissertation was to use the coral-reef fishes system...
Resource Type:: Dissertation
Full Text:: and spatial management of marine fisheries. Oceanography 20: 112-123 Forrester GE, Steele MA

Spatial and temporal variations in respiration rates and hypoxia on the Oregon shelf

Creator:: Wolf, Megan J.
Abstract:: Inner shelf hypoxia has occurred along the Oregon coast between the latitudes 44ºN and 45ºN since 2002 with increasing duration and intensity, posing a threat to marine life. The objective of this research was to determine whether variation in respiration rate explains spatial and temporal variation in hypoxia. Dissolved oxygen...
Resource Type:: Honors College Thesis
Full Text:: in the California Current System, damaging both marine ecosystems and fisheries (10). Hypoxic

Factors affecting the dynamics and regulation of coral-reef fish populations

Creator:: Webster, Michael Scott
Abstract:: Ecologists have long questioned why fluctuating populations tend to persist rather than go extinct. Populations that persist indefinitely are regulated by mechanisms that cause demographic density dependence, which works to bound fluctuation above zero. In a series of studies, I have sought to determine the processes and mechanisms that regulate...
Resource Type:: Dissertation
Full Text:: fisheries biologists have tried to understand the factors that determine the abundance of marine fishes

Indirect effects of ultraviolet-B radiation on larval amphibians as mediated by food quality and trophic interactions

Creator:: Scheessele, Erin A.
Abstract:: Ultraviolet-B radiation (UVB) is an abiotic stressor in both terrestrial and aquatic systems. The stratospheric ozone layer, depleted due to anthropogenic activities and the cause of elevated UVB at earth's surface over the last four decades, is predicted to recover by 2065. However, UVB levels in aquatic systems may continue...
Resource Type:: Dissertation

Grazer-resource Behavior, Interactions, and Feedbacks Control Kelp-forest Dynamics and Stability

Creator:: Randell, Zachary H.
Abstract:: How the direct and indirect effects of species interactions cascade to affect community structure, functioning, and stability is a fundamental question in ecology. In temperate kelp forests, species interactions, in conjunction with environmental processes, produce rich spatiotemporal dynamics. Arguably the most dramatic of these are abrupt shifts in community state,...
Resource Type:: Dissertation

Cannibalism in larvae of the long-toed salamander, Ambystoma macrodactylum

Creator:: Wildy, Erica Lynn
Abstract:: Predator-prey interactions have historically been studied to explain patterns of organization observed in populations and communities. They have also been important in understanding the evolution of antipredator responses in prey and counterstrategies in predators. Despite the breadth of knowledge that exists for heterospecific interactions, relatively few studies have investigated the...
Resource Type:: Dissertation

ScholarsArchive@OSU

The biology of a shallow-water methane vent

Life history, production, and food resources of the deposit-feeding polychaete Euzonus mucronata (Treadwell) on an Oregon coastal sand beach

Inner-shelf circulation off the central Oregon Coast

Movement Patterns of Rockfishes at the Redfish Rocks Marine Reserve, Oregon

Coral-reef fishes : insights into larval dispersal and invasion ecology

Spatial and temporal variations in respiration rates and hypoxia on the Oregon shelf

Factors affecting the dynamics and regulation of coral-reef fish populations

Indirect effects of ultraviolet-B radiation on larval amphibians as mediated by food quality and trophic interactions

Grazer-resource Behavior, Interactions, and Feedbacks Control Kelp-forest Dynamics and Stability

Cannibalism in larvae of the long-toed salamander, Ambystoma macrodactylum

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