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Watershed Biogeochemistry Group

960 720 Stroud Water Research Center

The main focus of the Watershed Biogeochemistry Group is to investigate major elemental cycles in streams and their watersheds, particularly carbon, nitrogen, and phosphorus pools and fluxes. We are especially interested in quantifying and characterizing the rich array of organic molecules that exist in stream ecosystems, and serve as the main food source to microorganisms and consequently to all biological communities. Throughout the watershed, water is found in many places beyond stream channels, including aquifers, soils, and sediments. Our biogeochemistry laboratory has the capabilities to perform a wide range of chemistry analyses in water samples from all these places.

Watershed Biogeochemistry Staff

Sara Geleskie Damiano

Sara Damiano

Staff Scientist
Headshot of Michael Gentile.

Michael Gentile

Staff Scientist
Daniel Myers

Daniel Myers, Ph.D.

Postdoctoral Associate
Diana Oviedo-Vargas, Ph.D.

Diana Oviedo Vargas, Ph.D.

Assistant Research Scientist
Sherman Roberts

Sherman Roberts

Staff Scientist

Watershed Biogeochemistry News

Four members of the AGU Open Science Circle gathered at the annual meeting.
Stroud Center Presents New Research to World’s Largest Group of Earth and Space Scientists
We shared our work with the broader scientific community, were inspired by the work of others, and mentored the next generation of freshwater scientists.
How Much PFAS Is Too Much? PFAS Levels in Drinking Water
PFAS Explained
Forever chemicals threaten drinking water and human health. Learn how scientists are investigating PFAS contamination in farming.
Three people next to a replica of the Nancy Grace Roman space telescope at the Goddard Space Flight Center.
Looking Back at Earth and Its Fresh Water From Space
All-star community science volunteers visit Goddard Space Flight Center and learn what NASA satellite data reveals about threats to streams.
Publication title with image of a mayfly
Hydrologic implications of projected changes in rain-on-snow melt for Great Lakes Basin watersheds
Myers, D.T., D.L. Ficklin, and S.M. Robeson. 2023. Hydrology and Earth System Sciences 27(9): 1755–1770.
Diana Oviedo-Vargas downloading data from a sensor located in White Clay Creek to a field laptop.
Stroud Center Scientist to Serve as Nature Conservancy Trustee
Diana Oviedo Vargas, Ph.D., is to serve as a trustee of the Nature Conservancy in Pennsylvania and Delaware, the conservancy recently announced.
Publication title with image of a mayfly
Respiration regimes in rivers: partitioning source-specific respiration from metabolism time series
Bertuzzo, E., E.R. Hotchkiss, A. Argerich, J.S. Kominoski, D. Oviedo-Vargas, P. Savoy, R. Scarlett, D. von Schiller, and J.B. Heffernan. 2022. Limnology and Oceanography 67(11): 2374–2388.