Browsing Ocean 444 and Ocean 445 -- Senior Theses by Title
Now showing items 58-77 of 337
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A comparison of bacterial community diversity between Tahsis Inlet and the open ocean
(2016-06)[author abstract] This study aimed to ascertain bacterial community diversity in the coastal North Pacific Ocean during the beginning of winter. The hypotheses were that the coastal ocean would be more diverse than the ... -
A comparison of concentrations of macronutrients and chlorophyll a in high- and low- chlorophyll concentration areas around the Galápagos Islands
(2006-03)The Galápagos archipelago is a hot spot of life in an open ocean of low production. The ecosystem of the islands depends on dissolved nutrients, which determine how much and what types of phytoplankton occur. This then ... -
Comparison of Microplastics in Puget Sound via the Puyallup River From 2017-2018 Using University of Washington (UW) Tacoma Datasets
(2021)Plastic material is the most prominent constituent of pollution in the marine environment and it has a myriad of adverse consequences. This research investigates the contribution of microplastics to Puget Sound, Washington, ... -
A comparison of seabird abundance in three inlets in Nootka Sound, British Columbia: Muchalat, Zeballos, & Tahsis
(2016-06)[author abstract] It is becoming increasingly important to conduct seabird surveys to track how populations are changing, and how the environment is changing. There has been little research on the density and abundance of ... -
Comparison of the Distribution, Abundance, and Diversity of Zooplankton in Trevor Channel and Alberni Inlet, Barkley Sound, Vancouver Island, Canada
(2013-06)[author abstract] The objective of this study is to compare the distribution, abundance and diversity of zooplankton species in the differing ecosystems of Trevor Channel and Alberni Inlet in Barkley Sound, Vancouver Island, ... -
Composition and distribution of phytoplankton around the Galapagos Archipelago
(2006-03)The Galapagos Islands marine ecosystem has regionally high primary production and chlorophyll concentrations that are uncharacteristic of the surrounding high-nitrate low chlorophyll waters of the Eastern Equatorial ... -
The concentration of microplastics compared to relative population proximity and basin residence times in Hood Canal and Whidbey Basin in Puget Sound, WA
(2017-07)Microplastics enter waterways due to humans, however water circulation and winds can have an effect on where they concentrate. Microplastic concentrations are determined in Hood Canal and Whidbey Basin in Puget Sound, ... -
Concentration of Microplastics in Beach Sediments Surrounding Seattle, Washington in the Puget Sound Estuary
(2017-07)Plastic pollution in the marine environment is an increasing concern. Microplastics (0.3-5 mm in size) are of most concern because they cannot be easily spotted, last the longest, and are easily ingested by marine organisms ... -
A cross channel survey of southern Rosario Strait, Puget Sound, Washington during flood tide using ADCP/CTD methods
(2007-05)This study measured the velocity of the tidal currents in Rosario Strait in Puget Sound. Because oil tankers pass through the Strait regularly, the long-range goal of understanding the currents is to predict the direction ... -
Cyclonic Mesoscale Eddy Impact on Zooplankton Vertical Migration at Station ALOHA in the Coast of Hawaii
(2021)Light intensity over the course of a day sets the circadian rhythm for the vertical movement of microorganisms across the entire ocean. This research focused on the distribution of zooplankton at station ALOHA off the coast ... -
Defining the characteristics of active spreading centers
(2012-06)[Author's Abstract] Spreading centers occur where tectonic plates are moving apart from each other creating new seafloor and mid-oceanic ridges. The rate at which the centers spread causes changes in the geological features ... -
Density structure in the outflow region of Colvos Passage: Observational analysis and model comparison
(2019)Puget Sound lies in a densely populated region of the state of Washington with many potential sources of pollution. A better understanding of circulation patterns within Puget Sound, such as the complex intersection of ... -
Depositional characteristics and trace metal abundance of sediments in an anoxic basin
(2015-06)[author abstract] Radiocarbon dates, grain-size analysis, δ13C, Computerized Tomography Scans, and metal abundance profiles are used to identify sediment deposition rate, sediment source, and redox conditions in a basin ... -
A description of water masses in Nootka Sound and estimation of diffusivity and upward velocity in Muchalat Inlet using temperature, salinity and dissolved oxygen
(2015-06)[author abstract] Nootka Sound is a rarely studied fjord estuary on the west coast of Vancouver Island, Canada. Using CTD and UCTD casts, water property data was collected from the entrance sill, main basin, and through ... -
Descriptive acoustic analysis of a newly-discovered marine seep
(2013-06)[author abstract] Methane is a potent greenhouse gas that plays an important role in the global climate and has a warming potential that is twenty-five times greater than that of carbon dioxide. Natural fluxes of methane may ... -
Design Alternatives for Sea Level Monitoring in Developing Anthropogenic Settings of South Asia
(2018-05-27)Melting land ice and the thermal expansion of water, both results of Earth’s warming climate, are currently contributing to global sea level rise. Because its implications are not directly apparent from day to day, the ... -
Design and Test of Emergency Response Drifter with Low Debris Profile
(2017-07-24)Affordable techniques for tracking point source water pollutants such as small-scale oil spills are limited to in situ drifters and manually controlled drones. The new age technology of low cost, areal footage via an ... -
Design of a Stereo-RUV for Remote Study of Octopod Behavior and Ecology
(2018-05-27)Remote underwater video recording techniques play an important role in the study of marine animals, certain natural behaviors of which may only be observed by remote instruments. Here the design, build, and testing of a ... -
Detecting a shallow surface layer in Barkley Sound from Lagrangian drifter trajectories
(2013-06)(Author abstract.) Fresh surface layers exist on the surface of fjords. In these areas, lighter freshwater from rivers flows over top of denser seawater from the ocean. A fresh surface layer creates stratification, ... -
Detecting seafloor lava flows with seafloor roughness
(2022)Much of the seafloor is currently unexplored. As such, increasing the number of options in the “tool box” is vital for studying the oceans. This study uses the North Arch Volcanic Field, an area of seafloor north of ...