Index Catalog // ScholarsArchive@OSU

Assessing the Impact of Fishery Bait on Spatiotemporal Variation in the Feeding Ecology of Dungeness Crab (Cancer magister) Using Stable Isotopes, Gut Content Analysis & Fishermen Interviews

Creator:: Harbison, Toby N.
Abstract:: The commercial Dungeness crab (Cancer magister) fishery is Oregon’s largest trap-based fishery. Each year, crab vessels discard millions of pounds of bait, including squid, razor clams, and sardines, into the near-coastal ocean. Although the fishery season typically runs from December 1st through August 14th, most landings occur within the first...
Resource Type:: Masters Thesis
Full Text:: : ___________________________________________________ Sarah K. Henkel The commercial Dungeness crab (Cancer

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:: : ______________________________________________________ Clare E. Reimers Continental margin sediments have been recognized as a major

Subducting Seamounts and Heceta Bank: An Amphibious Seismic Tomography Experiment of the Central Oregon Forearc

Creator:: Nolan, Sarah
Abstract:: Studies reveal differences in slip segmentation and plate coupling along the Cascadia subduction zone. The segment between 44.0°N and 45.0°N exhibited reduced slip in the 1700 megathrust earthquake (Wang et al., 2013) and corresponds with previous rupture boundaries inferred from paleoseismic data (Leonard et al., 2010). Notably, this segment of...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Sarah Nolan for the degree

Illuminating Patterns in Dark Microbial Matter: Diversity and Distribution of Fungi and Actinobacteria in Deep-sea Methane Seep Sediments

Creator:: Ardor Bellucci, Lila
Abstract:: Fungi and Actinobacteria are essential actors in global biogeochemical cycles of carbon and nutrients, and have both been recently appreciated for their roles in marine ecosystems. However, the diversity and distribution of these ubiquitous, but low-abundance microbes in deep-sea habitats remains poorly understood, particularly in chemosynthetic habitats such as methane...
Resource Type:: Masters Thesis
Full Text:: officers, crew, and operations team of the E/V Nautilus, who enabled the collection of many of the

Development from a Distance: Exploring International Non-profit Interactions with Communities during the COVID-19 Pandemic

Creator:: Peiffer, Ashley K.
Abstract:: The COVID-19 pandemic impacted the international development sector through various external and internal stressors. Community engagement practices that international non-governmental organizations and non-profits conducted were disrupted by the pandemic, and communities were faced additional challenges when international development workers were required to socially distance or relocate at the onset of...
Resource Type:: Masters Thesis
Full Text:: view the world and my growth as a researcher. To Sarah Glaser, thank you for your patience and

The Deep Sea and Me : using a science center exhibit to promote lasting public literacy and elucidate public perception of the deep sea

Creator:: Darr, Katherine D., East, Jennifer L., Seabrook, Sarah, Dundas, Steven J., and Thurber, Andrew R.
Abstract:: A critical barrier to effective management of deep-sea resources is a lack of understanding by society of the benefits received from the oceans. To address this knowledge gap, we applied an iterative design-based research methodology to evaluate (1) how to effectively use an exhibit to increase public literacy of the...
Resource Type:: Article
Full Text:: Perception of the Deep Sea Katherine D. Darr 1*, Jennifer L. East 2, Sarah Seabrook 1†, Steven J. Dundas 3,4

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:: : ______________________________________________________ Clare E. Reimers Continental shelf sediments are sinks for dissolved oxygen and sources of

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:: Alyssa E. Shiel Environmental archives provide records of natural and anthropogenic variation in

Mapping Wildlife-Relevant Snow Properties in Arctic-Boreal North America; Novel Modelling, Remote-Sensing, and Ground Observation Approaches

Creator:: Cosgrove, Christopher Liam
Abstract:: Arctic-boreal regions are exhibiting the symptoms of profound ecological shifts as they experience pronounced warming. Wildlife in high-latitudes are one such harbinger of change, and their populations are undergoing range-shifts, declines, and extinctions in response to their rapidly altering habitats. As the circumpolar and boreal north is snow-covered for up...
Resource Type:: Dissertation
Full Text:: -cabins to me - lifestyles and homes I envy hugely. Thanks too, to Sarah Sackett at the ABoVE logistics

Insights into Centennial-Scale Salt Marsh Morphodynamics from the Oregon Coast

Creator:: Peck, Erin K.
Abstract:: Quantification and comparison of morphological changes over the last ~300 y in Oregon salt marshes provide valuable insights into the tectonic, hydroclimatic, and anthropogenic processes shaping this important intertidal zone. Understanding of the rates and drivers of salt marsh change contextualizes intertidal habitats within the sediment routing system (i.e., source...
Resource Type:: Dissertation
Full Text:: had with Sarah Kolesar, Shelby Walker, and Stephanie Ichien. I have additionally received funding

ScholarsArchive@OSU

Assessing the Impact of Fishery Bait on Spatiotemporal Variation in the Feeding Ecology of Dungeness Crab (Cancer magister) Using Stable Isotopes, Gut Content Analysis & Fishermen Interviews

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

Subducting Seamounts and Heceta Bank: An Amphibious Seismic Tomography Experiment of the Central Oregon Forearc

Illuminating Patterns in Dark Microbial Matter: Diversity and Distribution of Fungi and Actinobacteria in Deep-sea Methane Seep Sediments

Development from a Distance: Exploring International Non-profit Interactions with Communities during the COVID-19 Pandemic

The Deep Sea and Me : using a science center exhibit to promote lasting public literacy and elucidate public perception of the deep sea

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

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

Mapping Wildlife-Relevant Snow Properties in Arctic-Boreal North America; Novel Modelling, Remote-Sensing, and Ground Observation Approaches

Insights into Centennial-Scale Salt Marsh Morphodynamics from the Oregon Coast

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