Index Catalog // ScholarsArchive@OSU

Distribution of dissolved, bioavailable PAHs in the lower Willamette River, Portland Harbor, Oregon

Creator:: Visalli, Solyssa Gabrielle
Abstract:: Polycyclic aromatic hydrocarbons (PAH) are common pollutants of aquatic systems in urban environments. Due to their lipophilicity, persistence, toxicity and carcinogenicity, they are chemicals of considerable concern. The Portland Harbor includes a large industrial section with numerous current and historic sources for PAH contamination. Runoff from a large metropolitan area...
Resource Type:: Undergraduate Thesis

Feasibility of Corbicula flumina as abiomarker for environmental pollutants in the Willamette River

Creator:: Lauderbach, Douglas
Abstract:: This report examines the feasibility of using the bivalve Corbicula flumina as a biomarker for environmental contaminants in the Willamette River. Compounds such as DDT, dioxins, furans, and PCBs persist in the environment, pose health related concerns, and due to their lipophilic nature accumulate in biological organisms. The success of...
Resource Type:: Undergraduate Thesis

Biogas inhibition of fats, oils, and greases with varying ammonia levels

Creator:: Aranda, Ana A.
Abstract:: Biogas can be used to generate energy from a wide variety of sources. Wastewater treatment sludge is an effective source of waste to be used for generation of biogas to make energy which can be used to heat homes and run businesses. This would help decrease the use of fossil...
Resource Type:: Undergraduate Thesis
Full Text:: with varying ammonia levels AN ABSTRACT OF THE THESIS OF Ana A. Aranda for the degree of

Determining Spatial Variability, Rates of Heavy Metal Retention and Loss in Moss

Creator:: Field, Gillette M. and Shiel, Alyssa E.
Resource Type:: Presentation
Full Text:: For Active Sampling Moss is a Great Biomonitor Google image Ectohydric MossVascular Plant Google

Reciprocal Moss Ornament Transplant for Heavy Metal Deposition Rate and Spatial Variability

Creator:: Field, Gillette M. and Shiel, Alyssa E.
Abstract:: Air pollution and pollution patterns have become a hot topic over the last several years. Many studies have been launched due to the increasing concern with air quality. As urban areas grow, atmospheric heavy metal pollution grows proportionally. Reducing atmospheric heavy metal pollution, and consequent health issues, requires monitoring and...
Resource Type:: Poster
Full Text:: : Sandy River Delta ]. Retrieved January 20, 2020. If a correlation is found between the spatial

Effects of Contemporary Forest Practices on Stream Nutrients, Temperature, and Periphyton in Small Headwater Streams

Creator:: Pimont, Cedric
Abstract:: Forest harvest practices can impact nutrient concentrations and stream temperatures, altering aquatic ecosystems. To better inform future sustainable forest resource management practices, quantifying the impact of current practices on water quality, particularly in headwater streams is important. In this study, I quantified monthly nitrate-nitrite (N) and orthophosphate (P) concentrations, 7-day...
Resource Type:: Honors College Thesis
Full Text:: Pimont A THESIS submitted to Oregon State University Honors College

Changes in Otolith Shape in Juvenile Chinook Salmon in Different Hatchery Rearing Conditions

Creator:: Ehrke, Melissa A.
Abstract:: The decline of the Chinook Salmon has been a mystery of recent years due to their decline. It has been speculated that wild origin salmon have more vigor and survivability than hatchery reared fish. This is thought to be due to rearing conditions, possibly affecting sensory organ development. The sensory...
Resource Type:: Undergraduate Thesis
Full Text:: decline of the Chinook Salmon has been a mystery of recent years due to their decline. It has been

Exploring the Growth Habits of Sweetpotatoes (Ipomoea batatas) in the Willamette Valley of Western Oregon

Creator:: Epps, Charlotte
Abstract:: Sweetpotatoes are a highly nutritious staple crop, playing an important role in global nutritional security. Although the majority of research in the United States (U.S.) focuses on the cultivation of the storage roots, both the leaves and roots are edible. Sweetpotatoes are indigenous to the Andes Region of South America;...
Resource Type:: Undergraduate Thesis
Full Text:: _______________ Name Date Abstract Introduction Sweetpotatoes are a highly nutritious staple

Whole system perspective : Steelhead, Onchorhynchus mykiss, glutathione s-transferase as a biomarker of chlorpyrifos exposure

Creator:: Pecore, Rachael G.
Abstract:: Organophosphate insecticides may produce sublethal, adverse effects on salmonid growth, reproduction, maturation, swimming, and feeding. Chlorpyrifos, an organophosphate insecticide, was detected by the Oregon Department of Environmental Quality in the Hood River and tributaries during March 1999 at levels exceeding state water quality standards in the range of 0.011-0.482 μg/L....
Resource Type:: Undergraduate Thesis

A Performance Evaluation of In-Stream Hatchboxes and Streamside Incubators for Chinook Salmon

Creator:: Howell, Meghan Z.
Abstract:: Hatcheries are used to produce salmon to augment the number of fish available for harvest, and to supplement wild populations that may be threatened with extinction. Although traditional hatchery rearing methods can produce many fish, they can pose risk to wild populations because they tend to produce salmon with lower...
Resource Type:: Undergraduate Thesis
Full Text:: . If a river can only sustain 4-24 parr per 100 m2, it might not be able to support as many as 100,000

ScholarsArchive@OSU

Distribution of dissolved, bioavailable PAHs in the lower Willamette River, Portland Harbor, Oregon

Feasibility of Corbicula flumina as abiomarker for environmental pollutants in the Willamette River

Biogas inhibition of fats, oils, and greases with varying ammonia levels

Determining Spatial Variability, Rates of Heavy Metal Retention and Loss in Moss

Reciprocal Moss Ornament Transplant for Heavy Metal Deposition Rate and Spatial Variability

Effects of Contemporary Forest Practices on Stream Nutrients, Temperature, and Periphyton in Small Headwater Streams

Changes in Otolith Shape in Juvenile Chinook Salmon in Different Hatchery Rearing Conditions

Exploring the Growth Habits of Sweetpotatoes (Ipomoea batatas) in the Willamette Valley of Western Oregon

Whole system perspective : Steelhead, Onchorhynchus mykiss, glutathione s-transferase as a biomarker of chlorpyrifos exposure

A Performance Evaluation of In-Stream Hatchboxes and Streamside Incubators for Chinook Salmon

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