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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

Publication title with image of a mayfly
Dissolved organic matter in stream ecosystems: forms, functions, and fluxes of watershed tea
Publications /
Kaplan, L.A., and R. Cory. 2016. Pages 241–320 in J.B. Jones and E.H. Stanley (editors). Stream Ecosystems in a Changing Environment. Academic ... Read More
Former Intern Embarks on Collaborative Research to Make Drinking Water Safer
Former Intern Embarks on Collaborative Research to Make Drinking Water Safer
News /
While an intern at the Stroud Center, Kristen Jellison, Ph.D., got her first taste of investigative scientific research, and she ... Read More
Stroud Center Scientist Takes “Rotator” Post at National Science Foundation
Stroud Center Scientist Takes “Rotator” Post at National Science Foundation
Press Releases /
Louis A. Kaplan, Ph.D., accepted a one-year appointment as a visiting scientist at the federal agency that funds innovative scientific ... Read More
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Consumption of terrestrial dissolved organic carbon by stream microorganisms
Publications /
Wiegner, T.N., L.A. Kaplan, S.E. Ziegler, R.H. Findlay. 2015. Aquatic Microbial Ecology 75:225–237 ... Read More
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Longitudinal shifts in dissolved organic matter chemogeography and chemodiversity within headwater streams: a river continuum reprise
Publications /
Mosher, J.J., L.A. Kaplan, D.C. Podgorski, A.M. McKenna, and A.G. Marshall. 2015. Biogeochemistry 124(1–3):371–385 ... Read More
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Coupled geochemical and biogeochemical characterization of dissolved organic matter from a headwater stream
Publications /
Sleighter, R.L., R.M. Cory, L.A. Kaplan, H.A.N. Abdulla, and P.G. Hatcher. 2014. Journal of Geophysical Research: Biogeochemistry 119(8):1520–1537 ... Read More