Dr. Marvin-DiPasquale is a Research Microbiologist for the USGS Water Resources Mission Area.
A native of Rochester NY, Dr. Marvin-DiPasquale is Project Chief of the USGS-Earth Systems Processes Divison (ESPD) effort "“Biogeochemical Cycling at Regional Scales”. He completed a B.S. in Chemistry at SUNY StonyBrook in 1987, and a Ph.D. in 1995 from University of Maryland, Marine and Estuarine Environmental Science Program, with a focus on the microbial ecology of Chesapeake Bay sediments. He began a career at USGS (Menlo Park, CA) as a ‘National Research Council’ post-doc in 1995, and became a Project Chief in 2004. During much of his USGS tenure, his research focus has been on mercury cycling in various ecosystems, including: the San Francisco Bay watershed and associated mining areas throughout CA; FL Everglades; Carson River, NV (mercury Superfund site); coastal Louisiana; Pategonia region of Argentina; Puget Sound, WA; USGS-NAWQA and USGS-WEBB Study Units in OR, FL, WI, SC, NY, CO, GA, PR, and VT.
Education
- State University of N.Y., Stony Brook, NY. 1985‑87. B.S., Chemistry.
- University of Maryland, Chesapeake Biological Laboratory, Solomons, MD. 1987-95. Ph.D., Marine and Estuarine Environmental Sciences. Research Focus: Aquatic Microbial Ecology and Biogeochemistry
Professional Experience
- National Research Council Associate, U.S. Geological Survey, Menlo Park, CA, 1995-1998.
- Research Term Appointment, U.S. Geological Survey, Menlo Park, CA, 1998-2001.
- Microbial Ecologist, U.S. Geological Survey, Menlo Park, CA, 2001-2004.
- Project Chief, U.S. Geological Survey, Menlo Park, CA, 2004-present.
Research Interests: microbial ecology, biogeochemistry, estuarine and freshwater ecology, mercury and other trace metal biogoechemisty
Professional Society Memberships (past & current)
Amer. Chem. Soc.; Amer. Geophysical Union; Amer. Soc. Limnology and Oceanography; Amer. Soc. Microbiology; Californian Estuarine Research Soc.; Estuarine Research Federation
Science and Products
High Resolution Temporal and Spatial Mapping of Mercury and Methylmercury in Surface Waters of the Sacramento – San Joaquin Delta
Microbial Biogeochemistry — Menlo Park, California
Mercury cycling, bioaccumulation, and risk across western North America: a landscape scale synthesis linking long-term datasets
Science and Products
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High Resolution Temporal and Spatial Mapping of Mercury and Methylmercury in Surface Waters of the Sacramento – San Joaquin Delta
Mercury (Hg) is a contaminant of significant concern in the San Francisco Bay-Delta estuary and watershed (Bay-Delta). The formation, fate, and transport of methylmercury (MeHg), a particularly toxic organic form of Hg that readily bioaccumulates in wildlife, has been studied extensively throughout the system. However, there is widespread recognition of the need for more comprehensive monitoring...Microbial Biogeochemistry — Menlo Park, California
About the ResearchThe Environmental Health Program collaborates with microbiologists at the Microbial Biogeochemistry Laboratory to develop and apply innovative methods to measure key microbial processes. These methods are used to better understand how major biogeochemical cycles (carbon, nitrogen, sulfur, and iron) interact with and control the speciation and fate of metals like mercury and...Mercury cycling, bioaccumulation, and risk across western North America: a landscape scale synthesis linking long-term datasets
Mercury (Hg) is a serious environmental problem that is impacting ecological and human health on a global scale. However, local and regional processes are largely responsible for producing methylmercury, which drives ecological risk. This is particularly true in western North America where the combination of diverse landscapes, habitat types, climates, and Hg sources may disproportionally impact t - Data
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