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Oviedo Vargas

The Viscosity Effect: A Newly Found Connection Between the Riparian Zone and Water Quality

800 450 Stroud Water Research Center

A new Stroud Center study shows that the density of water plays a previously overlooked role in nutrient and carbon cycling in freshwater ecosystems.

Three researchers seated on the ground and one standing collect samples from a rainfall simulator.

After the Harvest, the Rain Must Come

800 450 Stroud Water Research Center

Researchers at Stroud Water Research Center are using a rainfall simulator to assess how farming practices affect water quality in our streams and rivers.

Stroud Center Engages English Language Learners in Watershed STEM

800 450 Stroud Water Research Center

Students at the Migrant Education Summer Camp went on an online watershed expedition to learn about their local watersheds.

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.

Watershed Awareness Using Technology and Environmental Research for Sustainability (WATERS)

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Educators developed and piloted a new national curriculum and extensive learning resources using universal design for learning (UDL) principles in California, Pennsylvania, and Virginia, with special attention to students who…

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…