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Chesapeake Watershed Cooperative Ecosystem Studies Unit

Cooperative Ecosystem Studies Units (CESUs) provide research, technical assistance, and education to federal land management, environment, and research agencies and their partners.  By streamlining the funding process, CESUs efficiently facilitate collaboration between partner research institutions and federal agencies on projects that help inform the agencies’ environmental and cultural management decisions.  Research institution partners within the Chesapeake Watershed (CW) CESU provide leadership in watershed science and stewardship with special emphasis on the watershed of the Chesapeake Bay.  Since its inception in 2001, more than 900 projects have been funded through the CW CESU.  Visit our projects page to learn more.

Historic battlefield cannon in Harpers Ferry, West Virginia

Project Spotlights

Painted turtle on a river log

Helping Tiny Turtles Cross the Road

Towson University
National Park Service
Photograph taken north of the Ball Family Cemetery facing northeast looking over a cornfield on Portici farm.

The Evolution of Virginia Agriculture on the Portici Cultural Landscape

University of Oregon
National Park Service
Photo of a freshwater jellyfish (Craspedacusta sowerbii)

Freshwater Jellyfish: A Mysterious Presence in Our Waterways

University of Maryland Center for Environmental Science
National Park Service
Photo of the water monitoring field team collects data at a stream in National Capital Parks-East

Freshwater Salinization: Saltier Rivers Are a Growing Concern

Stroud Water Research Center
National Park Service
National Park Service staff walk through an old growth remnant grassland at Gateway National Recreation Area that was first identified as a remnant in 2024. NPS/Casey Reese

Hidden in Plain Sight: Old Growth Remnant Grasslands

Austin Peay State University
National Park Service
Waysides with tactile models and audio description at Franklin Delano Roosevelt Memorial.  Credit: NPS

Smithsonian Collaboration Supports NPS Tilden Award-Winning Accessible Wayside Project at FDR Memorial through CESU Network Collaboration

Smithsonian Institution
National Park Service
Photo of a spotted turtle

At-Risk Turtles - Ongoing NPS Research Spotlight

Virginia Tech
National Park Service
Pond next to Visitors' Center in Monocacy National Battlefield

Harmful Algal Bloom Control Technology Incubator Launched

National Oceanic and Atmospheric Administration
University of Maryland Center for Environmental Science
Graduate student and archeologist standing in foreground of lawn with trees in background.

Urban Archeology Corps

National Park Service
Binghamton University
Photo of bridge over the Potomac River at Harpers Ferry

Stress-Loving Plants and At-Risk Flora in Harpers Ferry

National Park Service
Frostburg State University

Our Partners are Located in Nine States Plus the District of Columbia

Conceptual map of partners in the Chesapeake Watershed CESU

Established in August 2001, the Chesapeake Watershed Cooperative Ecosystem Studies Unit (CW CESU) is a partnership among 69 university/research institutions and 12 federal agencies whose members strive to understand and protect the natural and cultural resources of the region.  With the Appalachian Laboratory as its lead administrative agency, the CW CESU is one of a national network of 17 such cooperative research units.

$125 Million

Federal funds awarded to partners since 2001.

> 1,000

Total projects awarded to partners since 2001.

> 80

Total partners, including universities, NGOs, state agencies, and federal agencies.

Interested in Partnering with the Chesapeake Watershed CESU?

Click below to learn more about joining the CW CESU.

What's New with the Chesapeake Watershed CESU?

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Meet the Student Recipients of 2026 CW CESU NPS Research Fellowships

July 20, 2026
Beautiful sunrise in the mountains with a silhouette of the mountains

The kick-off of the 2026 Spring CESU Online Seminar Series: Science of the Intermountain CESUs

February 20, 2026
Photo of Daria Maslyukova in the forest behind a large fungus

Meet the 2025 CW CESU Student Research Fellowship Recipients

May 28, 2025