Index Catalog // ScholarsArchive@OSU

An Integrated Approach to the Investigation of Age, Growth and Population Dynamics of Burrowing Thalassinidean Shrimps in a U.S. West Coast Estuary

Creator:: Bosley, Katelyn Marie
Abstract:: Two indigenous species of burrowing shrimp inhabit and often dominate the intertidal zone of estuaries along the US West Coast, the ghost shrimp, Neotrypaea californiensis, and the blue mud shrimp, Upogebia pugettensis. Both species are considered ecosystem engineers and play a role in maintaining estuarine health and ecosystem function. They...
Resource Type:: Dissertation
Full Text:: sincere appreciation to my committee members, Drs. Chris Langdon, Tom Wainwright and George Waldbusser

Evaluation of the Potential of Integrated Multi-trophic Aquaculture (IMTA) using Oyster (Crassostrea sp.) and Seaweed (Gracilaria sp.) for Shrimp (Penaeus monodon) Farms to Reduce Negative Impacts on Environment and to Improve Coastal Economy in Nusa Tenggara Barat, Indonesia

Creator:: Astriana, Baiq Hilda
Abstract:: In Nusa Tenggara Barat (NTB), Indonesia, shrimp is one of the most produced seafood. It contributes to 8.74% of total Indonesian shrimp production value. In order to improve aquaculture practices including shrimp farms, Ministry of Marine and Fisheries Affair of Republic of Indonesia recently issued General Guideline for “Minapolitan” (fisheries...
Resource Type:: Capstone Project
Full Text:: George Waldbusser, Committee Member Robert Allan, Committee Member Head of the College of

Proof-of‐Concept : Automated high‐frequency measurements of PCO₂ and TCO₂ and real‐time monitoring of the saturation state of calcium carbonate

Creator:: Vance, Jesse M.
Abstract:: The rapid increase in atmospheric carbon dioxide (CO₂) over the last 250 years has led to the absorption of approximately 550 billion tons of anthropogenic CO₂ by the global ocean. This oceanic uptake of CO₂ has resulted in decreasing pH and alterations to carbonate chemistry, threatening many ecologically and economically...
Resource Type:: Capstone Project
Full Text:: . I would like to thank George Waldbusser for his insights, advice

High-resolution Carbonate Dynamics of Netarts Bay, OR from 2014 - 2019

Creator:: Fairchild, William M.
Abstract:: Netarts Bay is a shallow, temperate, tidal lagoon located on the northern coast of Oregon and site of the Whiskey Creek Shellfish Hatchery (WCSH). Data collected with an automated flow-through system installed at WCSH capable of high-resolution (1 Hz) pCO2 and hourly TCO2 measurements, with measurement uncertainties of <2.0% and...
Resource Type:: Masters Thesis
Full Text:: Kavanaugh, Rick Colwell, Lori Hartline, Robert Allan, and George Waldbusser among many others. Finally

Functional Comparison of Longline Oyster Aquaculture and Eelgrass (Zostera marina L.) Habitats Among Pacific Northwest Estuaries, USA

Creator:: Clarke, Larissa M.
Abstract:: Understanding the ecological role of Pacific oyster aquaculture (Crassostrea gigas) and eelgrass (Zostera marina L.) as important habitats in US Pacific Northwest estuaries is critical for management and regulatory decisions. The oyster aquaculture industry is currently restricted by regulations concerning impacts of their activities on Z. marina. This seagrass is...
Resource Type:: Masters Thesis
Full Text:: Tomas Nash for her patience, perspective, and funding support and Dr. George Waldbusser for his

Shell Boring Polychaetes and the Oregon Oyster Aquaculture Industry: Spatial Distribution, Regulatory Actions, and Stakeholder Engagement

Creator:: Considine, Megan E.
Abstract:: Shell-boring polychaetes pose economic risks for oyster aquaculture industries as they reduce the aesthetic quality of oyster products by creating unsightly mud-filled blisters on the inside of the shell. Recently there has been a reported uptick in infested oysters on commercial farms along the west coast of the US, which...
Resource Type:: Masters Thesis
Full Text:: , Sam Chan, Dr. George Waldbusser, and Dr. Meagan Wengrove for their comments on this thesis and for

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:: my thesis committee. Dr. George Waldbusser, thank you for pushing me to think critically about the

Assessing Soil Salinity from Produced Water Spills with Electromagnetic Induction : A Case Study on Cropland in Bottineau County, North Dakota

Creator:: Erickstad, Karen M.
Abstract:: Produced water is a highly saline waste product of oil and gas production, which is generated in larger volumes than the hydrocarbons themselves in the United States. Spillage of produced water is of concern because its high salinity can contaminate soil, surface water and groundwater resources, and kill vegetation, including...
Resource Type:: Masters Thesis
Full Text:: . Kennedy, and Dr. Waldbusser for their willingness to serve as committee members, and for their guidance

Ecophysiology of Marine Bivalves : Physiological Rate Processes in Dynamic Environments

Creator:: Gray, Matthew W.
Abstract:: Marine bivalves are globally recognized as ecologically and commercially valuable species and, for over a century, researchers have been studying their feeding, digestion and other related physiological processes. These studies have shown that marine bivalves have complex feeding and particle processing behaviors to maximize growth in dynamic environmental conditions. Additionally,...
Resource Type:: Dissertation
Full Text:: tremendous resource throughout my graduate program. I am also very grateful to Dr. George Waldbusser who

Development and Evaluation of a Static Land-Based Aquaculture System for Pacific Dulse (Devaleraea mollis): Environmental and Nutrient Requirements

Creator:: Chatfield, Marcus W.
Abstract:: Devaleraea mollis (Pacific Dulse) is becoming a popular food for human consumption. Previously, Pacific Dulse has been used as a nutrient source for cultured abalone species, with some historical food use by indigenous peoples, while the closely related Atlantic dulse (Palmaria palmata) has a long-documented history of use in cuisine...
Resource Type:: Masters Thesis
Full Text:: Bartholomew, and Dr. George Waldbusser, who generously provided knowledge and expertise. Additionally, this

A Low-Volume Flow-Through System for Rearing Pacific Oyster (Crassostrea gigas) Larvae

Creator:: Fleener, Henry R.
Abstract:: Standard larval Pacific oyster (Crassostrea gigas) rearing systems can be described as either static or continuous flow. While rearing oyster larvae in static cultures can be a low-cost and simple method, static systems require significant husbandry effort, floorspace and can produce highly variable results due to environmental variance among cultures....
Resource Type:: Masters Thesis
Full Text:: . Neil Thompson, and Dr. George Waldbusser, for their support in this research. There were multiple

Juvenile Pacific Oyster Growth and Food Resources in Eelgrass Habitats of Variable Shoot Density in Tillamook Bay, OR: Ecosystem Interactions for Management Consideration

Creator:: Merrill, Julianne
Abstract:: As the global demand for seafood increases each year, there is a growing need to expand sustainable aquaculture in the interests of food security and resilience of coastal communities. Pacific oysters, Crassostrea gigas, are grown in West coast estuaries - where cultures often overlap with the federally protected native eelgrass,...
Resource Type:: Masters Thesis
Full Text:: . George Waldbusser for spending many hours patiently answering my statistics and biogeochemistry

Cooperation and Conflict Dynamics in Small-Scale Fisheries

Creator:: Villegas, Ciera A.
Abstract:: Small-scale fisheries account for at least 40 percent of global fisheries catch, 90 percent of the people employed along capture fisheries value chains operate in small-scale fisheries, and 45 million women participate in small-scale fisheries globally. The past few years have brought warnings from policymakers and resource managers about risks...
Resource Type:: Dissertation
Full Text:: today. Next, my committee members Dr. Sarah Glaser, Dr. Julia Jones, Dr. George Waldbusser

Investigating Influences of Natural and Anthropogenic Lead Sources on Environmental Archives at Multiple Spatial and Temporal Scales: Evidence from Oysters and Ice Cores

Creator:: Wensman, Sophia M.
Abstract:: Environmental archives provide records of natural and anthropogenic variation in the environment at different temporal and spatial scales. Lead (Pb) concentrations and isotopic ratios are useful tracers of anthropogenic emissions from industrial activities including mining, smelting, and leaded gasoline use, however, methods of measuring Pb are largely limited in low...
Resource Type:: Dissertation
Full Text:: , synthesis, and edits for all dissertation chapters. Dr. George Waldbusser assisted with collection of

Vulnerability and adaptation of Pacific Northwest shellfisheries to ocean acidification

Creator:: Katz, Brian G.
Abstract:: The purpose of this study was to understand the vulnerability and adaptive capacity of shellfish stakeholders in the Pacific Northwest who are adapting to ocean acidification (OA). This study developed a geovisualization tool of existing environmental data for assessing species-specific risk profiles to OA (based on their exposure and sensitivity),...
Resource Type:: Masters Thesis
Full Text:: . CONTRIBUTION OF AUTHORS Jessamyn A. Johnson and George G. Waldbusser compiled the biological response

Perceptions of a Changing Ocean: Resilience and Oregon's Commercial Fishing Community

Creator:: Haugen, Brianna I.
Abstract:: The complex challenges that Oregon’s commercial fishing community faces are mainly driven by four sources of change: climate change, change in management regulations, societal shifts, and market trends. Challenges include increasing competition for ocean use, management decisions that prioritize economic efficiency over community values, and an increasingly uncertain environment. The...
Resource Type:: Masters Thesis

The Genetics of Larval Fitness in the Pacific Oyster: Responses to Acidified Seawater and Temporally Dynamic Selection Processes

Creator:: Durland, Evan R.
Abstract:: The Pacific Oyster (Crassostrea gigas) is one of the most economically and ecologically significant shellfish species worldwide. In the Pacific Northwest United States (PNW), the sustainability oyster stocks is increasingly threatened by ocean acidification (OA), which has had significant negative effects on the aquaculture industry in this region over the...
Resource Type:: Dissertation
Full Text:: and support. CONTRIBUTION OF AUTHORS Dr. George Waldbusser, Dr. Chris Langdon and Dr

Autonomous in situ measurements of estuarine surface PCO₂ : instrument development and initial estuarine observations

Creator:: Wall, Colleen McKay
Abstract:: A novel, low-cost instrument capable of measuring surface water PCO₂ was designed for use in dynamic, shallow-water environments. The instrument was tested in the Yaquina River Estuary, a macrotidal estuary known to experience a wide range of conditions ranging from dominance by the coastal ocean during summer upwelling to substantial...
Resource Type:: Masters Thesis

Changing Climate, Changing Contexts : Variation in Rocky Intertidal Predator-prey Interactions Seen Through an Environmental Stress Framework

Creator:: Cerny-Chipman, Elizabeth B.
Abstract:: The multifaceted role of the environment in regulating the structure and dynamics of biological communities has long fascinated ecologists and motivated much debate and research. Now, in a time of accelerated global changes due to human impacts, the need to understand how the environment shapes communities has gained new urgency....
Resource Type:: Dissertation
Full Text:: of predator-prey interactions. George Waldbusser was so knowledgeable, always let our meetings run

Physical factors affecting the spatial distribution of infaunal bivalve assemblages and species along the continental shelf of the Pacific Northwest

Creator:: Labou, Stephanie Grace
Abstract:: The spatial distribution and abundance patterns of benthic infauna result from interactions with a host of environmental variables including sediment characteristics (percent silt-clay, grain size, total organic carbon), depth, temperature, and dissolved oxygen. This thesis focuses on the association of bivalve assemblages and species with potentially influential environmental variables along...
Resource Type:: Masters Thesis
Full Text:: . George Waldbusser, and Dr. Virginia Lesser, who served as my graduate council representative. I would

Water chemistry of Oregon Cascade wilderness lakes : a comparison to 1985 data

Creator:: Logan, Michael Burke
Abstract:: The Western Lake Survey (WLS) of 1985 documented the status of lake water chemistry across the western US and inferred population representations of various subregions and geomorphic units via statistically analyses. Results from this 1985 study indicated that lakes of the Oregon Cascades had the second most pristine and dilute...
Resource Type:: Masters Thesis
Full Text:: (Dr. Kelly Falkner, Dr. Dixon Landers, and my Graduate Council Representative, Dr. George Waldbusser

Documenting Significant Life Experiences in Nature, Nature Relatedness, and Mind Maps: A Case Study of United Methodist Church Members

Creator:: Sams, Jennifer D.
Abstract:: This study investigates the environmental-based life experiences in nature, nature relatedness, and demographic variables reported by members of First United Methodist Church (FUMC) of Claremore, Oklahoma. Previous studies have noted a lack of nature connectedness in modern culture and society and that this disconnect may impact human interactions with nature....
Resource Type:: Dissertation
Full Text:: . Waldbusser, and Dr. Bottoms, as well as those from Oklahoma State University who supported me during my

Quantitative and molecular genetics of larval susceptibility to Vibrio tubiashii in Pacific oysters (Crassostrea gigas)

Creator:: Chen, Chao
Abstract:: Vibriosis caused by the bacterial pathogen Vibrio tubiashii is one of several factors contributing to mass larval mortalities of the Pacific oyster (Crassostrea gigas) in Pacific Northwest shellfish hatcheries in recent years. Genetically improved strains of the Pacific oyster resistant to V. tubiashii would be highly desirable. This study investigates...
Resource Type:: Dissertation
Full Text:: thank my other committee members, John Killefer, William Hohenboken, George Waldbusser, and Shawn

Search Constraints

Search Results

Limit your search