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Ecosystem Ecology

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.

Two scientists paddle on the Brandywine Creek in Pennsylvania during an algae bloom.

New Way to Trace Algae Origins Could ID Sources of Water Pollution

800 450 Stroud Water Research Center

Real-time chlorophyll sensors can be used to determine the origins of algae in rivers and streams. 

Algal bloom in Brandywine Creek where it flows under a railroad bridge.

Who’s Polluting Our Water? Scientists’ New Way to Trace Algae Origins Could Tell Us

800 450 Stroud Water Research Center

Not all algae are harmful but too much can be deadly. Why? Because when they die, the blooms feed bacteria that rob the water of oxygen. 

Publication title with image of a mayfly

Deciphering the origin of riverine phytoplankton using in situ chlorophyll sensors

350 210 Stroud Water Research Center

Peipoch, M., and S. Ensign. 2022. Limnology and Oceanography Letters 7(2): 159–166.

Myriah Wadley taking a stream sample.

Where Passion Meets Purpose: Myriah Wadley on Environmental Science and Education

526 295 Stroud Water Research Center

Wadley is excited to share her passion for the environment with her community through boots-in-the-water educational experiences. “I want learners to feel more connected to the world around them.”

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Beyond the light effect: how hydrologic and geomorphologic stream features control microbial distribution across pool sequences in a temperate headwater stream

350 210 Stroud Water Research Center

Ouellet V., M.D. Daniels, M. Peipoch, L. Zgleszewski, N. Watson, E. Gibson, S. Krause, and J. Kan. 2022. Ecohydrology 15(2): e2380

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.

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Draining the landscape: how do nitrogen concentrations in riparian groundwater and stream water change following milldam removal?

350 210 Stroud Water Research Center

Lewis, E., S. Inamdar, A.J. Gold, K. Addy, T.L.E. Trammell, D. Merritts, M. Peipoch, P.M. Groffman, J. Hripto, M. Sherman, J. Kan, R. Walter, and E. Peck. 2021. Journal of Geophysical Research Biogeosciences 126(8), e2021JG006444.

2021 entomology summer intern group photo.

Meet Our 2021 Summer Interns

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