Index Catalog // ScholarsArchive@OSU

Effects of Teaching Household Actions to Address Ocean Acidification on Student Knowledge and Attitudes

Creator:: Erickson, Brian D.
Abstract:: Ocean acidification (OA), the change in ocean chemistry due to increasing concentrations of anthropogenic carbon dioxide in the atmosphere, is an environmental problem that is an active area of scientific research yet remains largely outside of the public’s awareness. It is often assumed that if we raise OA awareness, then...
Resource Type:: Masters Thesis
Full Text:: project it has become. To you, Tracy Crews, Flaxen Conway, and Burke Hales, my words do not adequately

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:: . I also want to thank my CEOAS committee members Dr. Burke Hales and Dr. Fred Prahl for all their

The uptake, transformation, and physiological response of the marine red macroalga Portieria hornemannii to the nitroaromatic explosive 2,4,6-trinitrotoluene (TNT)

Creator:: Cruz-Uribe, Octavio T.
Abstract:: The capability of the marine red macroalga Portieria hornemannii to remove and detoxify the nitroaromatic explosive 2,4,6-trinitrotoluene (TNT) in a seawater environment was evaluated using an axenic microplantlet suspension culture system. Microplantlets were challenged with TNT dissolved in seawater at concentrations of 1 to 50 mg L-1 in well-mixed photobioreactors...
Resource Type:: Dissertation
Full Text:: THE DISSERTATION OF Octavio T. Cruz-Uribe for the degree of Doctor of Philosophy in Chemical

Dynamic seascapes : a quantitative framework for scaling pelagic ecology and biogeochemistry

Creator:: Kavanaugh, Maria T.
Abstract:: Understanding and modeling microbial responses and feedbacks to climate change is hampered by a lack of a framework in the pelagic environment by which to link local mechanism to large scale patterns. Where terrestrial ecology draws from landscape theory and practice to address issues of scale, the pelagic seascape concept...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Maria T

Development of a continuous flow analysis system for trace iron: a data report

Creator:: Lakin, Elizabeth N.
Resource Type:: Research Paper
Full Text:: collected using a LabView program written by Burke Hales. The peristaltic pump is set at 35 which

Concentration-Runoff Relationships of Contrasting Small Mountainous Rivers in the Pacific Northwest, USA: Insights into the Weathering of Rhenium

Creator:: Ghazi, Layla
Abstract:: This study examines dissolved rhenium (Re) as a function of water runoff using river samples from two contrasting watersheds, the Eel and Umpqua Rivers in the Pacific Northwest, USA. These watersheds share many key characteristics in terms of size, discharge, climate, and vegetation, but they have a 10-fold difference in...
Resource Type:: Masters Thesis
Full Text:: , and Beth Rutila for assisting with analyses conducted in the Keck Lab; William Fairchild, Burke

Investigating rotating microelectrodes for rapid in situ detection of oxygen

Creator:: Chace, Peter J.
Abstract:: Rotating disc electrodes (RDEs) exploit the induced flushing of a radially spun electrode to increase the overall rate of analyte flux to an electrode sensing surface and its resulting signal current (i). Here initial efforts to evaluate a rotating platinum (Pt) microelectrode for efficacy as a rapid in situ dissolved...
Resource Type:: Masters Thesis
Full Text:: would also like to thank my committee members, Drs. Burke Hales, Jonathan Fram and grad rep Julie

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:: , ever. Also, on the subject of guidance, I must thank Burke Hales, who, I feel, has mastered the

Development of an autonomous in-situ instrument for long-term monitoring of Cu(II) in the marine environment

Creator:: Holm, Christopher E.
Abstract:: An autonomous, in-situ instrument was developed to detect dissolved copper in seawater, suitable for deployment on time scales from weeks to months. A commercially available in-situ nitrate analyzer (YSI 9600) was adapted to measure copper (II) in seawater by chemiluminescence. Modifications included construction of a photomultiplier (PMT) based detector and...
Resource Type:: Masters Thesis
Full Text:: would also like to thank the members of my committee, Dr. Burke Hales, Dr. Michael Harte and Dr

Calcium Ion Transport via Seeping Flow Events through Epikarst Microfissures

Creator:: Windom, Lisa M.
Abstract:: Solute transport models in karst groundwater must consider variable and complex flow regimes. Within fissures less than 2 mm in aperture, during unsaturated flow events, seeping flow may flow as films or under capillary tension as a capillary rivulet. This project focuses on exploring the mass transport characteristics of seeping...
Resource Type:: Masters Thesis
Full Text:: thickness (Equation 25). (24) (25) 𝜕𝑢 𝜕𝑡 + 𝑢 + ∇ 𝑢 = − 1 𝜌 ∆𝑃 + 𝜇 𝜌 ∇2𝑢

Buffering Estuarine Sediments Against Acidification

Creator:: Myers, Tristen J.
Abstract:: Globally rising anthropogenic CO₂ emissions have resulted in the increased prevalence of ocean acidification (OA) which has the potential to impact shell-forming organisms. On geologic timescales, the largest contributor to atmospheric CO₂ was volcanoes, counterbalanced by weathering and erosion, but due to increased anthropogenic emissions, these processes alone can no...
Resource Type:: Masters Thesis
Full Text:: would also like to extend my gratitude to the members of my committee, Dr. Burke Hales, Dr. Jennifer

Efficient Topobathymetric Mapping and 3D Spatial Analysis of Estuaries Using Multi-Platform, Multi-Temporal Data

Creator:: Lambert, Selina E.
Abstract:: Frequent 3D spatial mapping of estuaries is critical to understanding and modeling changes that can impact ecological health (e.g., water quality) and ecosystem services (e.g., aquaculture, nutrient cycling, and shoreline stabilization). However, obtaining accurate, repeat topobathymetric data for estuaries is a major challenge. Because shallow estuaries are typically not used...
Resource Type:: Masters Thesis

New Insights on the Southern Ocean Carbon Cycle from Biogeochemical Argo Floats

Creator:: Williams, Nancy L.
Abstract:: The Southern Ocean plays an important role in the ocean’s uptake of heat and carbon yet the processes controlling this uptake are not well understood. To date, more than 100 biogeochemical profiling floats that measure water column pH, oxygen, nitrate, fluorescence, and backscattering at 10-day intervals have been deployed throughout...
Resource Type:: Dissertation
Full Text:: other members of my committee: Richard Feely, Burke Hales, and Ricardo Letelier. You have challenged

A study on the effects of enhanced pCO2 on open ocean diazotrophic assemblages

Creator:: Gradoville, Mary Rose
Abstract:: Biological di-nitrogen (N₂) fixation is a key process in open-ocean ecosystems, where the new nitrogen (N) provided by marine diazotrophs can support a large fraction of primary productivity and carbon (C) drawdown. Recent laboratory studies have shown that elevated pCO₂ enhances the rate of N₂ fixation by select laboratory isolates...
Resource Type:: Masters Thesis
Full Text:: lightheartedness has made my time here exciting and rewarding. My additional committee members, Burke Hales

Dynamics of organic matter production and degradation during coastal diatom blooms

Creator:: Wetz, Michael S.
Abstract:: Experiments were designed to answer key questions about diatom-derived organic matter cycling (i.e., production and degradation) in coastal systems. Dissolved organic matter (DOM) production was examined in axenic batch cultures of five diatom species. Dissolved organic carbon (DOC) release rates varied between species, but were significantly higher for all species...
Resource Type:: Dissertation
Full Text:: being able to work with him. Thanks Ricardo! 4) Burke Hales, who I have had significant interaction

ScholarsArchive@OSU

Effects of Teaching Household Actions to Address Ocean Acidification on Student Knowledge and Attitudes

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

The uptake, transformation, and physiological response of the marine red macroalga Portieria hornemannii to the nitroaromatic explosive 2,4,6-trinitrotoluene (TNT)

Dynamic seascapes : a quantitative framework for scaling pelagic ecology and biogeochemistry

Development of a continuous flow analysis system for trace iron: a data report

Concentration-Runoff Relationships of Contrasting Small Mountainous Rivers in the Pacific Northwest, USA: Insights into the Weathering of Rhenium

Investigating rotating microelectrodes for rapid in situ detection of oxygen

Seagrasses as Potential Chemical Refugia for Acidification-Sensitive Bivalves

Development of an autonomous in-situ instrument for long-term monitoring of Cu(II) in the marine environment

Calcium Ion Transport via Seeping Flow Events through Epikarst Microfissures

Buffering Estuarine Sediments Against Acidification

Efficient Topobathymetric Mapping and 3D Spatial Analysis of Estuaries Using Multi-Platform, Multi-Temporal Data

New Insights on the Southern Ocean Carbon Cycle from Biogeochemical Argo Floats

A study on the effects of enhanced pCO2 on open ocean diazotrophic assemblages

Dynamics of organic matter production and degradation during coastal diatom blooms

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