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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

Watershed sediment cannot offset sea level rise in most U.S. tidal wetlands

Ensign, S.H., J.N. Halls, and E.K. Peck. 2023. Science 382(6675): 1191–1195.

Sediment-nitrogen (N) connectivity: Suspended sediments in streams as N exporters and reactors for denitrification and assimilatory N uptake during storms

Bisesh, J., E. Bacmeister, E. Peck, M. Peipoch, J. Kan, and S. Inamdar. 2023. Frontiers in Water 5:1254225.

A new metric for sunlight exposure in rivers, lakes, and oceans

Gardner, J.R., M.W. Doyle, S.H. Ensign, and D.M. Kahler. 2023. Limnology and Oceanography Letters, early online access.

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Freshwater Research News

A stream runs through a forest in Lancaster County, Pennsylvania.
Employment Opportunity: Postdoctoral Associate in Microbial Ecology
Stroud Water Research Center is searching for a postdoctoral associate to study molecular microbial ecology in aquatic and terrestrial environments.
A salt marsh in Barnstable, Massachusetts, shows signs of erosion and drowning as the sea level rises.
When Sea-Level Rise Threatens Coastal Wetlands, Don’t Look to Rivers For Help, Scientists Say
Building up wetlands that are drowning under rising oceans remains a challenge, but scientists are now one step closer to identifying solutions.
Carol Armstrong plants a tree in a streamside forest.
Volunteering With Scientists Changed How I Advocate for Clean Streams
Carol Armstrong shares how knowledge she gained from collecting high-quality data in streams empowered her as a clean-water advocate in her community.
A relic milldam on the Christina River in Delaware.
Will Removing Thousands of Old Milldams Across the Northeast Help or Hurt Streams?
Stroud Center scientists have been assessing how milldams affect the filtering capacity of streams and whether their removal affects water quality. 
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.