A picture of the sea and the sky

College of Arts and Sciences

Master of Science in Environmental and Ocean Sciences Research

Whether in the life sciences or physical sciences, San Diego County's landscape provides for an abundance of local research environments, including mountains, deserts, coastal, offshore and island environments. In some instances, research may focus on more distant areas, including opportunities abroad.

Each year, MS EOS students present an update on the results of their research during the previous year at the Graduate Colloquium. Feedback is provided to each student by their committee chair or thesis advisor.

Opportunities

Research experience can play a big role in a student's acceptance to a PhD program as well as future employment opportunities. At USD, students will have access to the hands-on experience of a research institution, coupled with the close faculty mentorship that is indicative of a liberal arts community. Coursework and research are combined, culminating in a written thesis. USD faculty are currently involved in a variety of research topics, including marine geochemistry, climatology, paleoclimatology, hydrology, oceanography, marine biology, locomotion and fluid dynamics, physiology, ecology and population genetics.

For ideas on possible research, see the areas that our past students have chosen to study.

Completed Theses
Graduate Student Thesis
2025
Jordan Jaeger Playa Sediment Bioaccessibility presents previously unkown risks to population health in a water-stressed region undergoing lake desiccation: Salton Sea, USA
Natalie Katherine De Wet Characterizing Fish Communities using Traditional and Emerging Monitoring Approaches in San Diego County Estuaries
Alberto Rivera Impact of temperature on larval mortality and perfomance of the acorn barnacle Chthamalus fissus in San Diego, CA
Lauren Goodell The effect of nitrate limitaion and ocean acidification on marine snow formed by the coccolithophore, Emiliania huxleyi
Henry Arbaugh Microplastics in St. John, United States Virgin Islands Sediments: Methodological Approaches and Variability of Microplastics Concentrations and Accumulation Rates
Emily Jenkins Climate influence on both spatial and temporal patterns of rocky intertidal community structure in San Diego, California
Makenna Irene Yu Lan Chan Determining the physiological and behavioral tolerance to hypoxia in two species of rockfish (Sebastes spp.)
2024
Emily Carter Under the Bay: Analysis of Green Sea Turtle (Chelonia mydas) Dive Behavior in the Urban San Diego Bay
Ryan Richard Yont Monitoring Marine Animal Interactions with Open Ocean Aquaculture and the Potential for Measuring Impacts
Rachel Sarner Exploring Microplastic Concentrations and the Sedimentology of San Diego's Offshore Benthic Environments
Okoiya Kelly How Many Fathers? Frequency of Multiple Paternity in Soupfin Sharks (Galeorhinus galeus) from California and Australia
Natalie Clagett Anthropogenic Impacts Lead to Plant Biodiversity Losses in a Unique and Fragile Coastal Dune Ecosystem
2023
Emily Masini Zavacki Spatiotemporal dynamics of the marine invertebrate community associated with Amathia verticillata
Avery Wallace Assessing the effectiveness of integrated multi-trophic aquaculture for growing west coast venus clams
Ella Adams Phylogeography of the Pacific Sardine, Sardinops sagax, in the Northeastern Pacific
Nancy Torres Assessing Ecosystem Health Through Contaminants in the Tijuana River Estuary
Michelle Robidas What drives larval condition for Northern Anchovy (Engraulis mordax)? Implications for coastal pelagic species recruitment fluctuations and fishery management practices
2022
Emily Parks The effect of different feeding regimes on recent nutritional and growth measurements in juvenile California Killfish (Fundulus parvipinnis)
Samantha Ahlman Distribution patterns of the invasive mussel Arcuatula senhousia in Mission Bay, San Diego, California: Effects of sediment grain size and byssus thread production on predation
Noah Jansen - Yee Crassostrea gigas Invasion in Southern California: Macrofaunal Diversity and Local Community Impacts of Ecosystem Engineers on Estuarine Habitats
A-bel Gong Movement patterns of the shovelnose guitarfish (Pseudobatos productus) and California bat ray (Myliobatis californica) in the Southern California Bight
Elena Beckhaus The effect of marine snow particle distribution on the foraging behavior of Calanus pacificus
2021
Abby Bierzychudek Using Mobile Fauna to Understand Urban Drool and Other Freshwater Impacts on Los Peñasquitos Lagoon
Angela Klemmedson Population dynamics of the myctophid fish, Gymnoscopelus nicholsi, based on otoliths from Arctocephalus gazella scats collected on Livingston Island, Antarctica, between 2000-2015
Rebecca Schwartz Lesberg Historical ecology of the San Diego sport fishery: Catch composition, species trends, and fishing effort from 1959 to 2011
Samantha Leander Using aerial photogrammetry and sexually dimorphic measurements to investigate seasonal differences in school composition of Delphinus spp. off Southern California
Riley Henning Developing a method to track marine snow aggregation through individual collisions using stereoscopic imaging
Stephanie Fan The effects of temperature and body size on the metabolism and hypoxia tolerance of white abalone (Haliotis sorenseni) and red abalone (H. rufescens)
Katie Robinson-Filipp Diet of an important wetland resident, the California Killifish, Fundulus parvipinnis, in a natural and created marsh habitat located in Mission Bay, California
2020
Grace Cawley Effects of Phytoplankton Properties on the Ingestion Rate of Marine Snow by Calanus pacificus
Kaur G. Khalsa-Basra Coastal watershed monitoring and management: Geomorphology, geochemistry, and hydrologic modeling of Los Peñasquitos Creek, CA
Gabriela Yamhure Nearshore vertical distribution of barnacle cyprids: temporal patterns and hydrographic variability
Lisa Robison Otolith microchemistry reveals low habitat connectivity of California killifish (Fundulus parvipinnis) across a range of spatial scales
Marisol Palomares Algal wrack community composition and succession on an exposed sandy beach in San Diego, CA
2019
Jason Langevin The distribution and demography of the Native Olympia Oyster (Ostrea lurida) and the Invasive Pacific Oyster (Crassostrea gigas) in the San Diego River
Bryanna Paulson Spatial and Temporal Variation in the Diet Composition of Zooplankton in Mission Bay
James Wright Artisanal mining impacts in semi-arid environments: Lessons from historic arsenic mining near San Diego, California
Rachel Steinberg Vertical and geographic habitats of whale sharks (Rhincodon typus) tagged along Ningaloo Reef, Western Australia
Caitlynn Birch The effects of seasonal variation, El Niño-Southern Oscillation events, and climate change on the tuna-dolphin association
Darbi Berry Understanding the relationships between sedimentation, vegetation and topography in the Tijuana River Estuary, CA
2018
Connor Payne Cayson The effects of density gradients on the distribution and behavior of copepods
Nima Farchadi Habitat preferences of Blue Marlin (Makaira nigricans) and Black Marlin (Istiompax indica) in the Eastern Pacific Ocean
Kate Hargenrader The spatial-temporal dynamics of larval supply, settlement, and adult populations for Chthamalus fissus in the La Jolla, California rocky intertidal
2017
Joy Shapiro Copepod distribution in relation to environmental parameters on diel time scales in Mission Bay, San Diego, California
Juliette S. Nash Repertoire shift & behavior in an adult female killer whale
Malloree Hagerty Vertical and cross-shore distributions of barnacle larvae in La Jolla, CA nearshore waters: implications for larval transport processes
Laura Schwebel Understanding and Optimizing Growth of California Yellowtail (Seriola dorsalis) in Aquaculture Using Physiological Tools
Thaïs M. Fournier Long - term changes in a spatially subsidized insular ecosystem in Bahía de los Ángeles, Baja California, MX
Brian Juhl The Impact of Copper on Non-Indigenous and Native Species of Suspension-Feeding Bivalves in Mission Bay, San Diego, California
Stephen Campbell The Effect of Watershed Runoff and Sediment Resuspension on Turbidity and Sediment Deposition in St. John, US Virgin Islands: Implications for Watershed and Marine Development and Restoration in Bays with Coral Reefs
Dustin Chen Larval rockfish diversity abundance dynamics in association with a marine protected area in the Southern California Bight

Starting research

#1

Choose a research advisor

All MS EOS applicants must have a provisional advisor (who will likely become the chair of the student's thesis committee).

#2

Meet with your Thesis Chair

During the student's first year, it is important to meet with your Thesis Chair on a regular basis to develop your research project. At least once every two weeks is strongly encouraged.

Once you've identified a focused research question and started to conduct work, there is an expectation of independence and responsibility. You should carry out your own studies and think critically about the results as you progress. Initiative and self-reliance are critical.