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Freshwater Research

Moving Freshwater Science Forward

Our efforts at Stroud™ Water Research Center require intellectual curiosity, a systematic and rigorous approach to scientific research, and the drive to answer a series of challenging questions about freshwater ecosystems. The answers to these questions may take decades to fully understand, but it is critical that we persist, as they have the power to influence others in ways that positively affect the world’s finite supply of clean fresh water.


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Recent Publications

Riparian groundwater nitrogen (N) isotopes reveal human imprints of dams and road salt salinization

Inamdar, S., M. Peipoch, M. Sena, B, Joshi, M.M. Rahman, J. Kan, E.K. Peck, A. Gold, T.L.E. Trammell, and P.M. Groffman. 2024. Geophysical Research Letters 51(5): e2023GL106888.

Agricultural practices influence soil microbiome assembly and interactions at different depths identified by machine learning

Mo, Y., R. Bier, X. Li, M. Daniels, A. Smith, and J. Kan2024. Microbiome, early online access.

Delaware River Watershed Initiative Pollution Assessment: Stage 2 Project Report

Aufdenkampe, A.K., D.B. Arscott, B. Evans, L. Perez. 2024. Stroud Water Research Center Report #2024-001.

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Freshwater Research News

Elisabeth Ruschmann standing near a stream.
High School Student’s Research Shows Salt Pollution of Fresh Water Has Tripled in 20 Years
Elisabeth Ruschmann monitored water quality in her community and made an “alarming” discovery. Now she’s focused on sustainable solutions.
People stand next to a vehicle on a dirt road to admire a tropical sunset.
Costa Rica Close-Up
Take a virtual trip to Maritza Biological Station, which houses one of the world's longest continuously running data collections from tropical freshwater ecosystems.
Bern Sweeney, 2023 Society of Freshwater Science Fellow
Bern Sweeney of the Stroud Center Named Society for Freshwater Science Fellow
Under his leadership, the Stroud Center became the only independent nonprofit, nonadvocacy research institution focused solely on the study of freshwater ecosystems.
David Arscott and Rafa Morales stand in a stream in Costa Rica.
Tropical Research Reveals Climate Change Impacts on Water Quality
Stroud Center scientists continue to investigate how climate change influences tropical species and ecosystem dynamics.
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.
Closterium algae magnified 20x under a microscope.
A Fresh Look at River Algae in the Delaware River Basin
A novel method to evaluate how algal concentration changes during river floods may be key to more accurately predicting how to keep algae under control.