Index Catalog // ScholarsArchive@OSU

Age, growth and maturity of the longnose skate (Raja rhina) for the U.S. west coast and sensitivity to fishing impacts

Creator:: Thompson, Josie E.
Abstract:: In the past, sharks, skates and ray species have mainly occurred in incidental fisheries. Now they are increasingly being directly targeted due to the depleted status of traditionally targeted species. The life history characteristics of many elasmobranch species make them more sensitive to high rates of fishing mortality. The combination...
Resource Type:: Masters Thesis
Full Text:: methods - my major professor, Scott Heppell, for his patience, useful advice and for enabling me to

Movement and abundance of lingcod (Ophiodon elongatus) in Yaquina Bay Estuary, Oregon: evidence for essential habitat designation

Creator:: Schwager, Tad W.
Abstract:: Lingcod (Ophiodon elongatus) are known to utilize certain estuaries along the Pacific coast of the United States, but the importance of these habitats to the coast-wide population is not well understood. In this study, general patterns of estuarine habitat use were assessed by tracking the movement of sub-adult and adult...
Resource Type:: Masters Thesis
Full Text:: for Essential Habitat Designation. Abstract approved: - C, ,.. V • Scott A. Heppell Lingcod

Management of the red sea urchin fishery : a biological approach

Creator:: Ubeda, Armando J.
Abstract:: The red sea urchin, Strongylocentrotus franciscanus, is one of the three species of strongylocentroids found on the west coast of North America between Baja California and Kodiak, Alaska. It belongs to the phylum Echinodermata, and it is one of the largest species of sea urchins. Since 1970, red sea urchins...
Resource Type:: Masters Thesis

Evaluation of dungeness crab pots as platforms of opportunity for ocean-observing research

Creator:: Childress, Jeremy L.
Abstract:: Oregon Fishermen in Ocean Observing Research (OrFIOOR) is a cooperative research program between ocean scientists and fishermen in the Pacific Northwest. Dungeness crab fishermen attach sensor packages (temperature and dissolved oxygen) to crab pots. The pots serve as platforms of opportunity for ocean observing. This study examines three principle questions...
Resource Type:: Masters Thesis
Full Text:: , Flaxen Conway, and Scott Heppell), who each encouraged and challenged me to become a more successful

Mapping surficial geologic habitats of the Oregon continental margin using integrated interpretive GIS techniques

Creator:: Romsos, Christopher G.
Abstract:: We map the regional physiography and surficial lithology (Surficial Geologic Habitat or SGH) over the continental margin of Oregon. This thesis develops, describes, and implements an iterative interpretive method to map seafloor habitat types from disparate geological and geophysical datasets including: bathymetric images, sidescan sonar images, seismic reflection profiles, sediment...
Resource Type:: Masters Thesis

Development of an Interpretive Exhibit on Marine Reserves and Marine Protected Areas in Oregon

Creator:: Vandehey, Amy
Abstract:: Oregon is currently in the process of establishing Marine Reserves (MRs) and Marine Protected Areas (MPAs) within Oregon’s Territorial Sea. To assure that residents are aware of impending policy and the science behind it, science educators must formulate education tools that define terms and identify issues, but do not alienate...
Resource Type:: Capstone Project
Full Text:: Eder, Caroline Bauman, Gus Gates, Selina Heppell, Terry Thompson, Dick Vander Schaaf, Scott McMullen

The Effects of Artificial Structures on Estuarine Infaunal Communities and Offshore Biofouling Communities

Creator:: Mendoza, Maritza
Abstract:: For hundreds of years, coastal and marine ecosystems have experienced increasing threats due to the cumulative effects of increasing population growth and dependence on these ecosystems. Thus, there has been increased enthusiasm to mitigate the negative effects of human actions through the use of cleaner sources of energy, like marine...
Resource Type:: Masters Thesis
Full Text:: , Scott Heppell and Scott Marion, were also incredibly receptive to the changes that occurred with my

Community-based sea turtle monitoring and management at Helen Reef, Hatohobei State, Republic of Palau

Creator:: Barr, Julie M.
Abstract:: Remote areas are frequently homes to regional subpopulations of endangered green sea turtles (Chelonia mydas) and their essential habitat. Local communities are often the users and primary stewards of this valuable and charismatic resource. Recognizing this, a Hatohobeian community group in Palau has engaged in longterm monitoring and conservation management...
Resource Type:: Masters Thesis
Full Text:: . Heppell Remote areas are frequently homes to regional subpopulations of endangered green sea turtles

Are there two subgroups of albacore, Thunnus alalunga, in the North Pacific? Evidence from variability in catch, seasonal migrations, and length composition for two subgroups in the coastal fishery of North America

Creator:: Barr, Charles M.
Abstract:: North Pacific albacore (Thunnus alalunga) is a highly migratory and commercially valuable species of tuna. All stock assessments and management decisions for North Pacific albacore are presently based on the assumption of a single, uniform stock. However, a growing body of evidence from diverse sources suggests that there are two...
Resource Type:: Masters Thesis
Full Text:: my appreciation to my advisory committee: Drs. Lorenzo Ciannelli, Bill Pearcy, and Scott Heppell

On the Edge : Assessing Fish Habitat Use Across the Boundary between Pacific Oyster Aquaculture and Eelgrass in Willapa Bay, WA

Creator:: Muething, Kelly A.
Abstract:: Estuaries are an important ecological link between terrestrial, freshwater, and marine systems, but are also subject to a variety of human pressures. Along the West Coast of the United States, shellfish aquaculture is one extensive use of estuarine tidelands. Specifically, Pacific oyster (Crassostrea gigas) aquaculture has been practiced for almost...
Resource Type:: Masters Thesis
Full Text:: development and communication of the research. Dr. Scott Heppell, I appreciate your ability to see different

ScholarsArchive@OSU

Age, growth and maturity of the longnose skate (Raja rhina) for the U.S. west coast and sensitivity to fishing impacts

Movement and abundance of lingcod (Ophiodon elongatus) in Yaquina Bay Estuary, Oregon: evidence for essential habitat designation

Management of the red sea urchin fishery : a biological approach

Evaluation of dungeness crab pots as platforms of opportunity for ocean-observing research

Mapping surficial geologic habitats of the Oregon continental margin using integrated interpretive GIS techniques

Development of an Interpretive Exhibit on Marine Reserves and Marine Protected Areas in Oregon

The Effects of Artificial Structures on Estuarine Infaunal Communities and Offshore Biofouling Communities

Community-based sea turtle monitoring and management at Helen Reef, Hatohobei State, Republic of Palau

Are there two subgroups of albacore, Thunnus alalunga, in the North Pacific? Evidence from variability in catch, seasonal migrations, and length composition for two subgroups in the coastal fishery of North America

On the Edge : Assessing Fish Habitat Use Across the Boundary between Pacific Oyster Aquaculture and Eelgrass in Willapa Bay, WA

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