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Watershed Biogeochemistry

Publication title with image of a mayfly

Partitioning inorganic carbon fluxes from paired O2 – CO2 gas measurements in a neotropical headwater stream, Costa Rica

 350 210 Stroud Water Research Center

Marzolf, N.S, G.E. Small, D. Oviedo-Vargas, C.N. Ganong, J.H. Duff, A. Ramírez, C.M. Pringle, D.P. Genereux, and M. Ardón. 2021. Biogeochemistry, early online access.

Research technicians weigh, identify, and record fish and amphibians sampled during a stream survey.

National Park Service Taps Stroud Center Team to Review Water Quality Data

 800 450 Stroud Water Research Center

“We are really leaning on Stroud to provide the aquatic ecology piece, to help us put data into context and advance our understanding of watershed health.”

Four scientists collect simulated rainfall from soil in a cornfield in White Clay Creek watershed.

Saving Streams With Good Science

 800 450 Stroud Water Research Center

Building trust in the scientific process starts with communicating our research to non-scientists. To that end, our scientists share snapshots of three long-term experiments.

2021 entomology summer intern group photo.

Meet Our 2021 Summer Interns

 800 450 Stroud Water Research Center

Our summer internship program, now in its 49th year, has ushered through hundreds of interns seeking meaningful learning experiences.

Restoration Project Impact Assessment in Support of Delaware River Watershed Initiative

 800 532 Stroud Water Research Center

This project quantifies the positive impact of one or several restoration projects associated with the Delaware River Watershed Initiative, namely those funded by the National Fish and Wildlife Foundation’s Delaware…

Phytoplankton Dynamics at the Brandywine River

 800 532 Stroud Water Research Center

High-frequency temperature, oxygen, and chlorophyll sensors, canoe float trips, and nutrient monitoring are the tools being used to study how much and how fast algae grow while they travel down…

Monitoring Fish Populations and Stream Habitat Quality for the National Park Service

 800 532 Stroud Water Research Center

This project monitors biological conditions, water quality, habitat integrity, and fish at 37 sites in 10 national parks in the National Capital Region Network around Washington, D.C. The findings of…

Mitigating Agricultural Pollution of Fresh Water and Combating Climate Change by Restoring Soil Health Through Conservation and Organic Agricultural Practices

 800 532 Stroud Water Research Center

Plowing, disking, synthetic fertilizers, and pesticides have damaged the health of agricultural soils, resulting in reduced rainfall infiltration and storage, increased stormwater and pollutant runoff, degraded streams, and contaminated groundwater.…

Long-Term Research in Environmental Biology (LTREB): Trajectory for the Recovery of Stream Ecosystem Structure and Function During Reforestation

 800 532 Stroud Water Research Center

Stream restoration in the United States is a multibillion-dollar industry. Yet long-term monitoring of its effectiveness is virtually nonexistent. Stroud Center scientists are studying restoration within White Clay Creek that…

Evaluating How Conventional, Conservation, and Organic Farming Management Practices Enhance Soil Health and Improve Water Quality

 800 532 Stroud Water Research Center

This project investigates how different agricultural management practices influence water quality and soil health. Using Rodale Institute’s 37-year-old Farming Systems Trial and a recent transition to organic farming at the…