Index Catalog // ScholarsArchive@OSU

Characterization of organic matter quality and content in Columbia River suspended particulate matter by cupric oxide oxidation

Creator:: Alleau, Yvan M.
Abstract:: The organic content of the Columbia River suspended particulate matter (SPM) results from the input of autochthonous (phytoplankton) and allochthonous (terrestrial vascular plants) production. The contribution of these two sources appears seasonal and responds to factors such as rainfall, runoff, river flow, light and nutrients availability. While numerous studies have...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Yvan M. Alleau for the degree of

Novel Copper and Iron Complexes along the Oregon Coastal Upwelling Margin

Creator:: Bright, Peter, W.
Abstract:: Copper and iron are essential micronutrients that are required by marine primary producers for a variety of metabolic processes. Over 99% of both copper and iron are bound within organic complexes in the marine environment, however the molecular identity of many of these complexes remains unknown. The speciation of these...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Rene M. Boiteau

Demystifying the Sensationalism of Human Trafficking: an Anthropological Study on the Systemic Exploitation of Migrant Labor in Tuscany, Italy

Creator:: Marconi, Veronica
Abstract:: In the last twenty years, human trafficking has gained attention in government agendas and media coverage, while anti-trafficking projects have burgeoned worldwide. Anti-trafficking efforts, however, have almost exclusively addressed the issue of sex trafficking with a focus on rescuing women, while overlooking other types of exploitation. This is noteworthy, given...
Resource Type:: Dissertation
Full Text:: Abstract approved: Lisa M. L. Price In the last twenty years, human trafficking has

Harnessing Heterogeneity in Human Gut Microbiome Data

Creator:: Tataru, Christine
Abstract:: The focus of this thesis is to design, characterize, and apply novel computational methods and molecular systems to interrogate heterogeneous human gut microbiome-related phenomena. In Chapter 2, I design, implement, and characterize a method for embedding co-occurrence patterns derived from massive 16s amplicon datasets. I use this method to 1....
Resource Type:: Dissertation
Full Text:: : Harnessing Heterogeneity in Human Gut Microbiome Data Abstract approved: Maude M. David The focus of this

Piscivorous colonial waterbirds in the Columbia River estuary : demography, dietary contaminants, and management

Creator:: Suzuki, Yasuko
Abstract:: Caspian terns (Hydroprogne caspia) and double-crested cormorants (Phalacrocorax auritus) nest in large colonies on East Sand Island in the Columbia River estuary, the largest known colonies for the two species in the world. Both species of piscivorous colonial waterbirds have been identified as predators with a significant impact on the...
Resource Type:: Dissertation
Full Text:: collection. Dr. Miguel Goni, Yvan Alleau, Bobbi Conard, and Mysti Weber from the College of Oceanic

Analysis of particulate organic matter distribution along surface waters of the California Current

Creator:: Welch, Kylie
Abstract:: Water samples along the Washington, Oregon and California coastline were collected using high resolution sampling and analyzed to determine particulate organic carbon and nitrogen concentrations. Over 28 days during August 2011, nearly 1500 samples were collected aboard the R/V Wecoma (W1108C) using a semi-automated filtration system. Additional subsurface samples were...
Resource Type:: Honors College Thesis
Full Text:: Yvan Alleau, Committee Member, representing College of Earth, Ocean, and Atmospheric Sciences

Spatiotemporal Variability in Benthic-Pelagic Coupling on the Oregon-Washington Shelf: An Investigation of Bottom Water and Benthic Flux Data

Creator:: Hughes, Anna R.
Abstract:: Continental shelf sediments are sinks for dissolved oxygen and sources of many major and minor nutrients required for oceanic surface primary production, resulting in a strong coupling between benthic and pelagic biogeochemical cycling. However, the influence and spatiotemporal variability of benthic remineralization on bottom-water chemistry and the supply of nutrients...
Resource Type:: Masters Thesis
Full Text:: , persistent efforts of Yvan Alleau, who helped design the unique core incubation technique, and Kristen

A terrestrial organic matter depocenter on a high-energy margin adjacent to a low-sediment-yield river : the Umpqua River margin, Oregon

Creator:: Hastings, Roxanne H.
Abstract:: Small, mountainous river systems have been increasingly studied due to their importance as sources of fluvial sediment and organic matter to the coastal ocean. Thus far, studies of small, mountainous river systems have focused on rivers with very high sediment loads. The well-studied Eel River dispersal system in northern California...
Resource Type:: Masters Thesis
Full Text:: Daryl Swensen for his dedication during the cruise. I want to thank Yvan Alleau for his dedication to

Evaluating Drivers of Iron Cycling in Oregon Continental Margin Sediments Using an Early Diagenetic Model

Creator:: Chan, Adrienne B.
Abstract:: Continental margin sediments have been recognized as a major source of dissolved iron to the global ocean. The focus of this study was to build an early diagenetic model that can be used to simulate iron fluxes from continental margins and thereby identify key controlling factors. The model uses the...
Resource Type:: Masters Thesis
Full Text:: profiles of iron at a Mid-Shelf (MS) site from ~100 m depth on Heceta Bank, suggesting that

Tracing Sources of Soil Organic Matter Through Time, Across Ecosystems, and Down Soil Profiles

Creator:: Gallo, Adrian Carlos
Abstract:: Soils contain the largest pool of carbon that is actively cycling on human timescales, leading many to view soils as a natural climate solution with multiple co-benefits. The field of soil science is rapidly evolving, but without a unified understanding of soil carbon dynamics. This dissertation leverages two distinct long-term...
Resource Type:: Dissertation
Full Text:: both of my projects. They include: Yvan Alleau, Maggie Bowman, Scott Holub, Kate Lajtha, Kate Heckman

ScholarsArchive@OSU

Characterization of organic matter quality and content in Columbia River suspended particulate matter by cupric oxide oxidation

Novel Copper and Iron Complexes along the Oregon Coastal Upwelling Margin

Demystifying the Sensationalism of Human Trafficking: an Anthropological Study on the Systemic Exploitation of Migrant Labor in Tuscany, Italy

Harnessing Heterogeneity in Human Gut Microbiome Data

Piscivorous colonial waterbirds in the Columbia River estuary : demography, dietary contaminants, and management

Analysis of particulate organic matter distribution along surface waters of the California Current

Spatiotemporal Variability in Benthic-Pelagic Coupling on the Oregon-Washington Shelf: An Investigation of Bottom Water and Benthic Flux Data

A terrestrial organic matter depocenter on a high-energy margin adjacent to a low-sediment-yield river : the Umpqua River margin, Oregon

Evaluating Drivers of Iron Cycling in Oregon Continental Margin Sediments Using an Early Diagenetic Model

Tracing Sources of Soil Organic Matter Through Time, Across Ecosystems, and Down Soil Profiles

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