Chesapeake Bay Activities


The Chesapeake Bay is our Nation’s largest estuary and provides over $100 billion in annual economic value. The USGS works with Federal, State, local, and academic partners to provide research and monitoring and to communicate results to inform management for the Chesapeake and other important landscapes across the Nation. See our Science page to learn about our themes and topics being addressed.

Trends Updated for River Input Monitoring Stations

Trends Updated for River Input Monitoring Stations

The Chesapeake Bay River Input Monitoring network consists of nine stations located near the nontidaltidal interface of the nine largest rivers in the Chesapeake Bay watershed.

Find out more

Endocrine-Disrupting Compounds in the Chesapeake Watershed

Endocrine-Disrupting Compounds in the Chesapeake Watershed

Studies in the Chesapeake Bay Watershed have documented the exposure of fish to toxic contaminants including endocrine-disrupting compounds (EDCs) - compounds which can alter normal hormonal function in organisms.

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Quick Links

Learn more about USGS science activities in the Bay from our Science Strategy. Additional summaries of the USGS Chesapeake Bay Activities are available in the science topics section.

Science Summaries, Features, and Videos

Chesapeake Bay Activities Bibliography

Chesapeake Bay Newsletter

Science Activities

Newly released! - USGS Chesapeake Bay Science Fact Sheet


Date published: September 1, 2021

USGS Responding to High Water Caused By Ida Across Multiple States

To learn more about USGS’s role in providing science to decision-makers before, during and after Hurricane Ida, visit

For information on what the Department of Homeland Security and FEMA are doing, visit:

For more on what the U.S. Government is Doing, visit: or for Spanish.

June 30, 2021

Chesapeake Bay Activities Newsletter May-June 2021

The USGS provides research and monitoring to better understand and restore the Chesapeake Bay and its watershed. Our technical reports and journal articles, which we translate into science summaries, provide the findings used by federal, state, and local decisionmakers to inform restoration and conservation decisions. Here are some recent highlights.

Learn more about USGS Chesapeake Bay activities

Date published: June 23, 2021

For the second year in a row, smaller Chesapeake Bay dead zone forecast for the summer

Chesapeake Bay Program — Press Release — June 21, 2021


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Year Published: 2021

USGS Chesapeake Science Strategy 2021-2025

The Chesapeake Bay ecosystem is a national treasure that provides almost $100 billion annually of goods and services. The Chesapeake Bay Program (CBP), is one of the largest federal-state restoration partnerships in the United States and is underpinned by rigorous science. The U.S. Geological Survey (USGS) has a pivotal role as a science provider...

Hyer, Kenneth E.; Phillips, Scott W.
Hyer, K., and Phillips, S., 2021, USGS Chesapeake Science Strategy 2021-2025: U.S. Geological Survey Fact Sheet 2021–3037, 6 p.,

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Year Published: 2021

U.S. Geological Survey landscape science strategy 2020–2030

Across our Nation, multiple Federal, State, Tribal, and local governments are working with stakeholders and landowners to restore, conserve, and manage lands and resources to benefit fish, wildlife, and people. One of the largest Federal efforts is led by the U.S. Department of the Interior (DOI), with multiple DOI agencies working to conserve and...

Jenni, Karen E.; Carter, Sarah K.; Aumen, Nicholas G.; Bowen, Zachary H.; Bradford, John B.; Chotkowski, Michael A.; Hsu, Leslie; Murdoch, Peter S.; Phillips, Scott W.; Pope, Kevin L.; Schuster, Rudy; Steinkamp, Melanie J.; Weltzin, Jake; Xian, George Z.
Jenni, K.E., Carter, S.K., Aumen, N.G., Bowen, Z.H., Bradford, J.B., Chotkowski, M.A., Hsu, L., Murdoch, P.S., Phillips, S.W., Pope, K.L., Schuster, R., Steinkamp, M.J., Weltzin, J., and Xian, G.Z., 2021, U.S. Geological Survey landscape science strategy 2020–2030: U.S. Geological Survey Circular 1484, 26 p.,

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Year Published: 2021

Nutrient trends and drivers in the Chesapeake Bay Watershed

The Chesapeake Bay Program maintains an extensive nontidal monitoring network, measuring nitrogen and phosphorus (nutrients) at more than 100 locations on rivers and streams in the watershed. Data from these locations are used by United States Geological Survey to assess the ecosystem’s response to nutrient-reduction efforts. This fact sheet...

Hyer, Kenneth E.; Phillips, Scott W.; Ator, Scott W.; Moyer, Douglas L.; Webber, James S.; Felver, Rachel; Keisman, Jennifer L.; McDonnell, Lee A.; Murphy, Rebecca; Trentacoste, Emily M.; Zhang, Qian; Dennison, William C.; Swanson, Sky; Walsh, Brianne; Hawkey, Jane; Taillie, Dylan
Hyer, K.E., Phillips, S.W., Ator, S.W., Moyer, D.L., Webber, J.S., Felver, R., Keisman, J.L., McDonnell, L.A., Murphy, R., Trentacoste, E.M., Zhang, Q., Dennison, W.C., Swanson, S., Walsh, B., Hawkey, J., and Taillie, D., 2021, Nutrient trends and drivers in the Chesapeake Bay Watershed: U.S. Geological Survey Fact Sheet 2020–3069, 4 p.,