Index Catalog // ScholarsArchive@OSU

Encounter norms of snorkelers and scuba divers at Molokini, Hawai'i : methodological and managerial applications

Creator:: Bell, Caitlin M.
Abstract:: Over the past few decades, tourism and recreation activities have increased in tropical marine settings, and studies have examined social and ecological impacts of these activities. Some studies have examined social impacts such as encounters, crowding, and encounter norms or standards that individuals use to evaluate encounters with others as...
Resource Type:: Masters Thesis
Full Text:: upward of 79% supported direct actions to restrict use at the site (e.g., limit the number of boats

Patterns of sediment accumulation in the Siletz River Estuary, Oregon

Creator:: Pakenham, Anna
Abstract:: Anecdotal evidence suggests many Pacific Northwest estuaries are filling with sediment due to historical logging activities in upstream watersheds. Using the Siletz River estuary as a case study, this research began by analyzing timber harvest and discharge records of the Siletz River watershed, and found that increased timber harvest coincides...
Resource Type:: Masters Thesis

Investigation of polycyclic aromatic hydrocarbons (PAHs) transport by suspended particulate matter (SPM) in the lower Columbia River and its estuary

Creator:: Gregg, Tiffany
Abstract:: This study aims to improve knowledge of how suspended particulate matter (SPM) affects hydrophobic contaminant transport in the lower Columbia River and its estuary, using polycyclic aromatic hydrocarbons (PAHs) as model compounds. It is hypothesized that PAHs are transported to the estuarine turbidity maximum (ETM), a prime feeding zone in...
Resource Type:: Masters Thesis
Full Text:: the bottom mean in the Columbia River by 79% (Figure 3.3). These high SPM values are attributed to

The Role of Iron: How Natural and Human-Induced Iron Fertilization Could Change Ocean Productivity

Creator:: Adroli, Nurmalia
Abstract:: Iron (Fe) is an important limiting nutrient that can affect the rate of ocean primary production because it is required by phytoplankton as an enzymatic cofactor in photosynthesis, nitrogen fixation, and other essential metabolic functions. Most Fe reaches the surface of the open ocean via atmospheric dust deposition, which is...
Resource Type:: Masters Thesis
Full Text:: .................................................. 79 A.3 Dust Wet+Dry Deposition anomaly all bin

A Broader Overview and Investigation into Seafood Traceability Developments and the Current Landscape for the US West Coast Seafood Industry

Creator:: Ahlers, Brian L.
Abstract:: Seafood is one of the most diverse and highly traded natural resources worldwide. Widespread evidence of increased seafood fraud and IUU fishing has placed enormous pressure on industry and governments to determine the authenticity, safety, and sustainability of seafood. The recently established US National Ocean Council has addressed several gaps...
Resource Type:: Masters Thesis
Full Text:: ………………………............................................76 3.17 Comparison of regulatory awareness and firm size/number of sectors…...………..79 3.18 Chi

Re‐establishment of the native oyster, Ostrea conchaphila, in Netarts Bay, Oregon, USA

Creator:: Archer, Pamela Emily
Abstract:: Olympia oysters, “Ostrea conchaphila,” were once common along the west coast of North America. A popular delicacy, native oyster populations began to decline in the late 1800’s due to over‐harvest, degraded water quality, and habitat loss. Interest in re‐establishing the native oyster in a small Oregon estuary, Netarts Bay, culminated...
Resource Type:: Masters Thesis

Mapping and lithologic interpretation of the Territorial Sea, Oregon

Creator:: Agapito, Melinda T.
Abstract:: Seafloor lithologic maps have been widely used to identify conservation sites. In this study, a lithologic interpretation of Oregon's territorial seafloor was created as an interim product in response to the need for a comprehensive lithologic map that will be used in the identification, evaluation and design of marine reserves...
Resource Type:: Masters Thesis
Full Text:: …………………………………………………………………………77 BIBLIOGRAPHY………………………………………………………………..………79 APPENDICES……………………………………………………………………...……86

Habitat Associations and Diet Composition of Western Purple Martins in Western Oregon

Creator:: Sherman, Lorelle M.
Abstract:: The western purple martin (Progne subis arboricola) is a species of conservation concern throughout the Pacific Northwest. In western Oregon, the purple martin nests in three major ecosystem types: inland open-water, coastal, and upland forest. The availability of suitable breeding habitat is a major limiting factor for western purple martin...
Resource Type:: Masters Thesis
Full Text:: forest ecosystems. Ecosystems were standardized by the number of samples in each........79 3.12

Habitat mapping and identifying suitable habitat of Redfish Rocks Pilot Marine Reserve, Port Orford, Oregon

Creator:: Amolo, Rizaller C.
Abstract:: Establishment of marine protected areas (MPAs) has been documented to effectively manage marine resource's diversity and enhance fisheries productivity. However, there must be a critical consideration of how these sites are selected and the actual description of the site itself. Its effectiveness is greatly dependent on understanding these habitats and...
Resource Type:: Masters Thesis

Larval Biogeography and Varying Spawning Behavior of Bering Sea Groundfishes: Implications for Management in a Changing Seascape

Creator:: Vary, Laura
Abstract:: Early life stages of marine fishes exert substantial control on the productivity and resilience of marine fisheries, as these life stages represent periods of extreme mortality. Additionally, eggs and larvae of marine fishes respond rapidly to environmental change and can thus be used to infer ecosystem-wide responses to climate change...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Encounter norms of snorkelers and scuba divers at Molokini, Hawai'i : methodological and managerial applications

Patterns of sediment accumulation in the Siletz River Estuary, Oregon

Investigation of polycyclic aromatic hydrocarbons (PAHs) transport by suspended particulate matter (SPM) in the lower Columbia River and its estuary

The Role of Iron: How Natural and Human-Induced Iron Fertilization Could Change Ocean Productivity

A Broader Overview and Investigation into Seafood Traceability Developments and the Current Landscape for the US West Coast Seafood Industry

Re‐establishment of the native oyster, Ostrea conchaphila, in Netarts Bay, Oregon, USA

Mapping and lithologic interpretation of the Territorial Sea, Oregon

Habitat Associations and Diet Composition of Western Purple Martins in Western Oregon

Habitat mapping and identifying suitable habitat of Redfish Rocks Pilot Marine Reserve, Port Orford, Oregon

Larval Biogeography and Varying Spawning Behavior of Bering Sea Groundfishes: Implications for Management in a Changing Seascape

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