Browsing Ocean 444 and Ocean 445 -- Senior Theses by Title
Now showing items 244-263 of 337
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Patterns of apparent oxygen utilization and circulation in Barkley Sound, Vancouver Island B.C.
(2010-05)In this study, dissolved oxygen was measured in Barkley Sound and Effingham Inlet with the use of a CTD and Winkler titrations. Oxygen minimum zones or "dead zones" in the world's oceans can be strongly influenced by ... -
Performance characterization and relative dispersion of drogued drifters deployed in the fjords of Nootka Sound
(2016-06)[author abstract] Current velocities and dispersion were analyzed in Muchalat inlet using drifters as a Lagrangian sensor. The recorded velocity measurements were compared to two moored ADCP’s that were placed in the channel ... -
The Performance of Drifters for Oil Spill Tracking
(2018-05-27)Oil spills can be devastating to marine ecosystems so knowing how to track where the spills should go is a concern that could decide the fate of communities near spills. After contemplation on which design of drifter would ... -
pH Limitations in environmental geochemical monitoring
(2015-06)[author abstract] Development of methods for measuring in situ remineralization rates of carbon in the ocean is necessary to accurately model the ocean’s capacity to sequester atmospheric carbon dioxide and the future ... -
Phytoplankton Community Composition Along Environmental Gradients in the North Pacific Ocean
(2022)Prochlorococcus is a cyanobacterium smaller than 1 μm that accounts for much of the primary production in nutrient-poor areas such as the North Pacific Subtropical Gyre (NPSG). In the transition from the NPSG to more ... -
Phytoplankton community structure in the Tahsis River and Zeballos River plumes
(2015-06)[author abstract] Rivers provide necessary nutrients for primary production in estuaries and along the coast. Salinity, light, temperature, and turbidity play a large role in shaping plume communities. By looking at the ... -
Polar Pollution: Modeling Potential Origins and Sinking of Plastic in the Arctic Ocean
(2021)Increasing levels of plastic are being found in remote Arctic areas. Movement, sinking rates, and origins of plastic particles in the Arctic Ocean were evaluated using a modeling approach. The Adrift Model which moves ... -
Population Structure and Diversity of Polynoids Associated with Tubeworms at Axial Seamount
(2023-05)Polynoid worms at Axial Seamount represent a sizable portion of the already annelid dominant environment but have comparatively little work examining the population structure of the taxa. This study examined polynoid ... -
Potential trace-chemical (Fe, Mn, CH4) limitation on bacterial growth in deep sea hydrothermal vent plumes along the Southern East Pacific Rise
(2022)Global cycling of elements like carbon, nitrogen, and iron has a key role in maintaining the biosphere. These and other micro- and macro-nutrients undergo important reduction-oxidation and acid-base transformations in the ... -
A preliminary study to investigate the possible effect of the common pesticide carbaryl on the copepod Euchaeta elongate and the copepod community of Hood Canal, Washington
(2007-05)This study is an effort to improve our understanding of how urban populations directly and indirectly impact salmon and other aquatic animals. The copepod Euchaeta elongate is a salmonid food source, and carbaryl, an ... -
Presence and distribution of heterotrophic denitrifying bacteria in the Eastern Tropical North Pacific oxygen minimum zone in relation to environmental parameters
(2012-06)[Author's Abstract] The marine nitrogen cycle plays an important role in primary productivity by supplying primary producers with the essential nutrient nitrate. The expansion of oxygen minimum zones in the oceans is causing ... -
Presence and Function of a Circadian Clock in Marine Cyanobacteria Prochlorococcus and Synechococcus
(2021)This study attempts to explore cyanobacterial circadian clock-related gene expression and analysis of related environmental conditions in marine environments. A circadian clock refers to a biomechanical component that ... -
Presence of emerging pollutants in surrounding waters of Bamfield, British Columbia, Canada
(2010-04-01)Research was conducted in Barkley Sound, British Columbia, to determine if pollutants are present in the waters of British Columbia, specifically around fish pen locations. Within the samples pesticides, hormones, musks, ... -
Prevalence of Dissolved Homarine in Puget Sound and North Pacific
(2021)Due to the analytical challenges faced during metabolomic analyses of seawater, there has been very little research on the distribution and cycling of dissolved homarine in natural waters. Therefore, the role of homarine ... -
Primary Production around the Galapagos Islands and the effects of cloud cover and differing light regimes
(2006-03)This paper highlights my study on the effects of cloud cover on the primary production around the Galapagos Islands in the Equatorial Pacific Ocean. Primary production is the photosynthesis done by marine phytoplankton, ... -
Processes of sediment transport across the Galapagos Platform: A geophysical study of Canal Isabela
(2006-03)The Galapagos Islands are situated on a hot spot, an area in the Earth’s crust that has magma close to the surface. This study was used to collect data that would show how sediment transport takes place between Isabela and ... -
Productivity of Antarctic diatom Nitzschia lecointei with the addition of betaine under different salinities
(2017-07)In the Antarctic, psychrophilic diatoms such as Nitzschia lecointei maintain cell homeostasis under harsh conditions. These harsh conditions include salinity shifts from 35 to 212 (Krell 2006). In order to maintain homeostasis ... -
Propagated ridge structure and faulting as a control on sediment accumulation
(2012-06)[Author's Abstract] In the Eastern Tropical North Pacific within the Sea of Cortez lies a unique geologic feature. Three tectonic plates spread and twist apart over millions of years as brand new sea floor is created, ... -
Pseudo-nitzschia species distribution in estuaries of the Pacific Northwest based on Automated Ribosomal Intergenic Spacer Analysis (ARISA)
(2010-05)The goals of this study were to compare Pseudo-nitzschia species in two regions, Puget Sound and Barkley Sound, and to see if the location within the sounds had an impact on which species were present. Nine different ... -
Pseudo-nitzschia species distributions in Glacier Bay, AK as measured by automated ribosomal intergenic spacer analysis (ARISA)
(School of Oceanography, University of Washington, 2008-06-19)Pseudo-nitzschia species were sampled in Glacier Bay, and putatively identified using a DNA fingerprinting method. Species richness decreased with increasing inputs of freshwater and low light conditions.