Index Catalog // ScholarsArchive@OSU

Accumulation and effects of 4-nonylphenol in chinook salmon fry and their estuarine amphipod prey

Creator:: Hecht, Scott A.
Abstract:: 4-nonylphenol (NP), a surfactant degradation product, is an unregulated, ubiquitous aquatic contaminant and endocrine disruptor, for which aquatic life criteria are currently under development by U.S. EPA. The effects of NP on estuarine amphipods and chinook salmon fry were investigated, and this dissertation reports research into the impacts of NP...
Resource Type:: Dissertation
Full Text:: harvesting, habitat degradation, and pollution of water and sediments (Kareiva et al. 2000). As sediments

Effects of atrazine on olfactory-mediated behaviors in Pacific lamprey (Entosphenus tridentatus)

Creator:: Smith, April G.
Abstract:: Pacific lamprey (Entosphenus tridentatus) are experiencing population declines throughout their range. Xenobiotics could be an important risk factor for lamprey populations. Our goal was to establish if common herbicides, as used in forest management, could affect reproductive fitness. We determined that atrazine was a likely compound of greatest concern to...
Resource Type:: Masters Thesis
Full Text:: goal of this research is to determine if atrazine has an effect on the ability of Pacific lamprey to

Insights from stable isotope dynamics into the sensitivity of larval Pacific oysters to ocean acidification

Creator:: Brunner, Elizabeth Lev
Abstract:: Larvae of the Pacific Oyster, Crassostrea gigas, at Whiskey Creek Shellfish Hatchery (WCH) in Netarts Bay, Oregon, are negatively impacted by high-CO₂ water and exposure during the initial shell formation period appears to be particularly damaging. To investigate the mechanism of this early susceptibility, several cohorts of larvae at WCH...
Resource Type:: Masters Thesis
Full Text:: the next 100,000 years (Gruber 2011, Norris et al. 2013) Impacts of high-CO2-water on C. gigas

Bioaccumulation profiles of chemical contaminants in fish from the lower Willamette River, Portland Harbor superfund site and human health risk assessment

Creator:: Sethajintanin, Doolalai
Abstract:: Concentrations of twenty-five PCBs, fifteen organochiorine pesticides and mercury were determined in recreational fish from the Willamette River, Oregon during the summer of 2000. Thirty-six fish samples of three fish species including black crappie, smalimouth bass and con-rn-ion carp were analyzed. The data reported here provides new information and recent...
Resource Type:: Masters Thesis
Full Text:: examine difference in means of lipid-effect, site-effect and species-effect on analyte concentrations

The Effects of Nitrate and a Pathogenic Fungus, Batrachochytrium dendrobatidis, on Amphibians

Creator:: Negru, Delia
Abstract:: The current rate of global biodiversity loss and extinctions is unparalleled and a major concern. Freshwater organisms are facing particularly rapid rates of biodiversity loss. Amphibians, which require an aquatic environment for part of their life cycle, are one of the most vulnerable vertebrate groups. Amphibians are experiencing population declines,...
Resource Type:: Masters Thesis
Full Text:: more pronounced effect of nitrate on amphibians because of highly toxic ammonia (Hecnar 1995

The Bermuda Biological Station for Research, Inc. and Pollutants Accumulation in Coral Skeleton

Creator:: Gallo, Lino J.
Resource Type:: Capstone Project
Full Text:: . - Preparation of reference works on Bermuda's natural history and marine life. - As a sidelight to pollution

Refrigerated seawater depuration for reducing Vibrio parahaemolyticus contamination in raw Pacific oysters (Crassostrea gigas)

Creator:: Yang, Qianru
Abstract:: Vibrio parahaemolyticus is a seafood-borne pathogen that can cause gastroenteritis in humans. This study investigated the effectiveness of refrigerated seawater (5°C) depuration on reducing V. parahaemolyticus in raw Pacific oysters (Crassostrea gigas). Raw Pacific oysters were inoculated with a mixed culture of five clinical strains of V. parahaemolyticus and depurated...
Resource Type:: Masters Thesis
Full Text:: winter. This is probably due to the differences between water temperatures of the oyster harvest site

Improvements in the dosimetric models of selected benthic organisms

Creator:: Caffrey, Emily Amanda
Abstract:: The International Commission on Radiological Protection (ICRP) has modeled twelve reference animal and plant (RAP) species using simple geometric shapes in Monte–Carlo (MCNP) based simulations. The focus has now shifted to creating voxel phantoms of each RAP to advance the understanding of radiation interactions in nonhuman biota. The work contained...
Resource Type:: Masters Thesis
Full Text:: Radiation Health Physics presented on October 2, 2012. Title: Improvements in the Dosimetric Models of

The effects of acclimation and surface access on the resistance of fish to hypoxic stress

Creator:: Wirosoebroto-Hartadi, Retno Widaningroem
Abstract:: Rainbow trout (Salmo gairdneri) and bluegill (Lepomis macrochirus) were exposed to flows of water containing low DO concentrations produced by bubbling nitrogen through the water. Abrupt exposure of fish to critical DO concentrations (The standard dose response) and by a more gradual changing of DO levels (The "stepdown" approach) were...
Resource Type:: Masters Thesis
Full Text:: The effects of acclimation and surface access on the

Seagrasses as Potential Chemical Refugia for Acidification-Sensitive Bivalves

Creator:: Smith, Stephanie Rae
Abstract:: As the effect of ocean acidification (OA) on marine calcifiers is better understood, a range of potential mitigative strategies have been proposed, many of which are plagued by concerns of scale and feasibility. One oft-cited option is to increase the biomass of photosynthetic organisms to remove CO₂ from the water...
Resource Type:: Masters Thesis
Full Text:: the effect of ocean acidification (OA) on marine calcifiers is better understood, a range of

ScholarsArchive@OSU

Accumulation and effects of 4-nonylphenol in chinook salmon fry and their estuarine amphipod prey

Effects of atrazine on olfactory-mediated behaviors in Pacific lamprey (Entosphenus tridentatus)

Insights from stable isotope dynamics into the sensitivity of larval Pacific oysters to ocean acidification

Bioaccumulation profiles of chemical contaminants in fish from the lower Willamette River, Portland Harbor superfund site and human health risk assessment

The Effects of Nitrate and a Pathogenic Fungus, Batrachochytrium dendrobatidis, on Amphibians

The Bermuda Biological Station for Research, Inc. and Pollutants Accumulation in Coral Skeleton

Refrigerated seawater depuration for reducing Vibrio parahaemolyticus contamination in raw Pacific oysters (Crassostrea gigas)

Improvements in the dosimetric models of selected benthic organisms

The effects of acclimation and surface access on the resistance of fish to hypoxic stress

Seagrasses as Potential Chemical Refugia for Acidification-Sensitive Bivalves

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