Bookmark and Share

Department of

Environmental and Ocean Sciences



Department Chair

Michel A. Boudrias

Michel A. Boudrias, PhD

Associate Professor
(619) 260-4794

Office: Shiley Science and Technology 267

Michel A. Boudrias, PhD,has been on the faculty since 1996 and is currently chair of the department and Chair of the university's Sustainability Task Force.  Boudrias teaches classes that cover a wide range of topics from introductory marine biology to interdisciplinary coastal environmental science to classical invertebrate zoology.  He has taught Honors courses that combine traditional classroom concepts with intense field experiences. His research projects include long-term interdisciplinary projects combining marine ecology and marine chemistry in Baja California Sur and an integrated project studying the social, cultural and environmental impacts of tourism in Jamaica. 

> More Information

No photo available

Rachel Clemesha, PhD


Office: ST 261

Office Hours: W: 11:05am-12:30pm

Sarah Gray

Sarah Gray, PhD

(619) 260-4098

Office: Shiley Science and Technology 270

Office Hours: TR 2:30pm-5:00pm

Sarah Gray, PhD, teaches courses in geological oceanography, paleoclimatology, climate change, environmental geology, and earth science.  These courses include hands-on field and lab-based research experiences.  Gray conducts research in paleoclimatology, marine sedimentation, the geology of coral reefs and environmental proxies recorded in the geochemistry of coral skeletons.  Current research includes a study of the impact of watershed development on sedimentation on fringing coral reefs in the U.S. Virgin Islands and a synthesis of multi-century climate cycles preserved in the geologic record. Her PhD dissertation was entitled “Late Quaternary History of Reef Growth, Sea Level, and Diagenesis from three Cook Islands Atolls”.

> More Information

Ron Kaufmann

Ron Kaufmann, PhD

Associate Dean
Associate Professor, Marine Science
(619) 260-5904

Office: SCST 274

Ron Kaufmann, PhD, joined the USD faculty in 1997 and currently serves as director of the Marine Science Graduate Program.  His areas of specialization are ecology and environmental biology, and his teaching includes courses in biology, environmental studies and marine science, as well as interdisciplinary courses that are team-taught with colleagues in the humanities. Kaufmann’s scholarship focuses on biological communities and their dynamics as well as their responses to changing environmental conditions. He has studied marine communities in extreme environments such as the Antarctic and the deep ocean.


> More Information

Bethany O'Shea

Bethany O'Shea, PhD

Assistant Professor
(619) 260-4243

Office: Shiley Science and Technology 273

Office Hours: M: 8:30-10:30am T: 11am-12pm F: 12:30-2:30pm

Bethany O'Shea, PhD, teaches courses in environmental geology, earth science, and geochemistry of ocean and continental waters. All of these courses use the environment as a natural laboratory and include interactive problem solving and thought provoking learning techniques. Dr. O'Shea is interested in the cycling of metals, nutrients, and contaminants in the environment; specifically controls on the movement and distribution of trace elements in groundwater, lakes, and sediments. She welcomes the opportunity to teach and mentor students interested in the earth, marine, and environmental sciences.

> More Information

Jennifer C. Prairie

Jennifer C. Prairie, PhD

Assistant Professor
(619) 260-8820

Office: SCST 269

Office Hours: M: 1:30-3:30pm T: 3-5pm R: 2:30-3:30pm

Jennifer C. Prairie, PhD, joined the USD faculty in 2014. Prairie teaches courses on introductory marine biology and physical oceanography. Her research combines laboratory experiments and field work with mathematical modeling to study biological-physical interactions in marine ecosystems, particularly focusing on plankton. Current projects include studying marine snow formation in turbulence and zooplankton foraging in patchy environments. Prairie welcomes undergraduate involvement in her research.

> More Information

Nathalie Reyns

Nathalie Reyns, PhD

Associate Professor
(619) 260-4096

Office: Shiley Science and Technology 277

Office Hours: M: 10am-12pm W: 11am-2pm

Nathalie Reyns, PhD, teaches core and upper division courses in oceanography, marine ecology and how humans impact the oceans. Reyns’ research interests focus on identifying the factors that influence the dispersal of marine organisms, to better understand the population dynamics of these organisms and the implications for fisheries management and marine conservation. Reyns is also very interested in advancing marine science education and improving ocean literacy, and regularly provides research opportunities for undergraduate students.

> More Information

Drew M. Talley

Drew M. Talley, PhD

Associate Professor
(619) 260-6810

Office: SCST-266

Office Hours: Sabbatical FA15-SP16

Drew Talley, PhD, teaches a variety of courses including Introduction to Physical Oceanography, Biological Oceanography, Graduate Statistics and Experimental Design, and Life in the Ocean. His overall research focuses on understanding connectivity across habitat boundaries, and assessing how that interdependence between systems changes with anthropogenic influence both locally (e.g., through habitat loss) and globally (e.g., through climate change).

> More Information

Suzanne Walther

Suzanne Walther, PhD

Assistant Professor

Office: SCST 265

Office Hours: T: 11:30am-1:30pm W: 9-11am R: 4-5pm

Zhi-Yong Yin

Zhi-Yong Yin, PhD

(619) 260-8864

Office: SCST-268

Office Hours: TR: 10:40am-12:10pm W: 2:30-4:30pm

Zhi-Yong Yin, PhD, came to USD in 2003 after teaching at Georgia State University in Atlanta for 12 years. He offers classes in hydrology, climatology, geographic information systems (GIS), and remote sensing. His research focus is hydroclimatology, with special interests in recent and past climate variations and the impact on hydrological systems and water resources in the northeastern Tibetan Plateau.

> More Information