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Republishing Stroud Water Research Center content in its entirety is not allowed without express permission.

Diana Oviedo Vargas, Ph.D., collects biosolid samples to test for PFAS.
The Next Frontiers of Freshwater Science
From PFAS to road salt, science helps us discover the emerging pollutants lurking in our water and find solutions.
Closeup of a Radnor MS macroinvertebrate poster featuring a hellgrammite.
Students Transform Stream Studies Into Scientific Storytelling
Middle school students were challenged to create informational posters about the macroinvertebrates they discovered during a visit to the Stroud Center.
Euthyplocia mayfly from a Costa Rican stream.
The Most Important Animals May Be the Ones You Never Notice
Researchers are following the path of nitrogen in a tropical stream to uncover relationships that support the entire ecosystem.
Amy Bowers Cordalis.
The 2026 Stroud Award for Freshwater Excellence
The 2026 Stroud Award for Freshwater Excellence will be presented to Amy Bowers Cordalis, advocate for the Klamath River and Indigenous people.
Golfers with water donated by Open Water.
Golf Tournament Raises Funds for Freshwater Conservation
Golfers gathered to support freshwater science, education, and restoration at the Stroud Center’s annual golf fundraiser.
Teachers perform a stream study as part of a workshop.
When White Clay Creek Watershed Becomes a Classroom
From rubber duck races to Junior Ranger badges, the White Clay Creek watershed becomes an outdoor classroom for students, teachers, and families.
Philadelphia Catholic Schools Connect Watershed Science to Their Communities
Philadelphia Catholic Schools Connect Watershed Science to Their Communities
With funding from the Connelly Foundation, students have participated in hands-on studies of freshwater ecology, watershed science, and stream restoration.
Publication title with image of a mayfly
Soil iron oxides as geochemical filters in floodplain restorations: Key drivers, dynamics, and links to nutrients and metals
Inamdar, S., J.G. Galella, E.R. Moore, M.M. Rahman, M. Sena, B. Joshi, M. Peipoch, and J. Kan. 2026. Journal of Environmental Management 408: 129967.
An aerial view of Choptank River Wetlands.
Whose Mud Is It? DNA Tracks Sediment Pollution in Chesapeake Bay
Stroud Center scientists used microbial DNA to trace sediment pollution in Maryland estuaries, helping managers target Chesapeake Bay restoration efforts more effectively.