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Biogeochemistry Group

960 720 Stroud Water Research Center

The main focus of the 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.

Biogeochemistry Staff

Sara Damiano

Sara Damiano

Research Technician
Michael Gentile

Michael Gentile

Research Technician
Head shot of Diana Oviedo-Vargas, Ph.D.

Diana Oviedo-Vargas, Ph.D.

Assistant Research Scientist
Sherman Roberts

Sherman Roberts

Research Technician

Biogeochemistry News

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Mechanisms of organic matter export in estuaries with contrasting carbon sources
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Arellano, A. R., T. S. Bianchi, C. L. Osburn, E. J. D'Sa, N. D. Ward, D. Oviedo‐Vargas, I. D. Joshi ... Read More
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Direct non‐invasive 1H NMR analysis of stream water DOM: Insights into the effects of lyophilization compared to whole water
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Whitty, S.D., D.C. Waggoner, R.M. Cory, L.A. Kaplan, and P.G. Hatcher. 2019. Magnetic Resonance in Chemistry, early online access ... Read More
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Photodegradation disproportionately impacts biodegradation of semi‐labile DOM in streams
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Bowen, J.C., L.A. Kaplan, and R.M. Cory. 2019. Limnology and Oceanography, early online access ... Read More
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Dissolved organic carbon concentrations in White Clay Creek, Pennsylvania, 1977-2017
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Kaplan, L.A. 2019. Environmental Data Initiative ... Read More
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Eco-friendly organic nanotubes encapsulating alkaline phosphatase and ecotoxicology of nanotubes to natural bacterial assemblages in coastal estuarine waters
Publications /
Montgomery, M.T., G.E. Collins, T.J. Boyd, C.L. Osburn, D. Oviedo-Vargas, and Q. Lu. 2019. American Chemical Society Omega 4(1):2196–2205 ... Read More