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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.

News

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Chesapeake Bay sees smaller than average dead zone in 2022

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Bay Barometer provides progress on Chesapeake restoration effort

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Chesapeake Bay Activities Newsletter July-September 2022

Publications

Estrogenic activity response to best management practice implementation in agricultural watersheds in the Chesapeake Bay watershed

Best management practices (BMPs) have been predominantly used throughout the Chesapeake Bay watershed (CBW) to reduce nutrients and sediments entering streams, rivers, and the bay. These practices have been successful in reducing loads entering the estuary and have shown the potential to reduce other contaminants (pesticides, hormonally active compounds, pathogens) in localized studies and modeled

Review of harmful algal blooms effects on birds with implications for avian wildlife in the Chesapeake Bay region

The Chesapeake Bay, along the mid-Atlantic coast of North America, is the largest estuary in the United States and provides critical habitat for wildlife. In contrast to point and non-point source release of pesticides, metals, and industrial, personal care and household use chemicals on biota in this watershed, there has only been scant attention to potential exposure and effects of algal toxins

Identifying key stressors driving biological impairment in freshwater streams in the Chesapeake Bay watershed, USA

Biological communities in freshwater streams are often impaired by multiple stressors (e.g., flow or water quality) originating from anthropogenic activities such as urbanization, agriculture, or energy extraction. Restoration efforts in the Chesapeake Bay watershed, USA seek to improve biological conditions in 10% of freshwater tributaries and to protect the biological integrity of existing healt

Science

USGS to revise 2020 nontidal load and trend results

Issue: The USGS is examining data and results of the most recent update of loads and trends from monitoring stations in the Chesapeake Bay Program (CBP) Nontidal Network (NTN), which contains trends though 2020 and was released in August 2022. During a process to implement a new software package for the next update of NTN data, the USGS discovered some questionable data values. Most of the...
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USGS to revise 2020 nontidal load and trend results

Issue: The USGS is examining data and results of the most recent update of loads and trends from monitoring stations in the Chesapeake Bay Program (CBP) Nontidal Network (NTN), which contains trends though 2020 and was released in August 2022. During a process to implement a new software package for the next update of NTN data, the USGS discovered some questionable data values. Most of the...
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Enhanced understanding of factors affecting stream condition can improve restoration outcomes

Issue: The Chesapeake Bay Watershed Agreement has an outcome to improve stream health. Current restoration approaches have led to mixed improvements in stream conditions, indicating that some major stressors and their sources were likely overlooked. Managers could benefit from synthesized information on most reported stressors responsible for aquatic community impairment and their linkages to...
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Enhanced understanding of factors affecting stream condition can improve restoration outcomes

Issue: The Chesapeake Bay Watershed Agreement has an outcome to improve stream health. Current restoration approaches have led to mixed improvements in stream conditions, indicating that some major stressors and their sources were likely overlooked. Managers could benefit from synthesized information on most reported stressors responsible for aquatic community impairment and their linkages to...
Learn More

New high-resolution, land-use and change data improves decision-making in the Chesapeake Bay watershed

Issue Informing restoration across the nearly 64,000 square miles of the Chesapeake Bay watershed is an enormous challenge that requires detailed and accessible landscape data. Among the most pressing challenges being addressed by the Chesapeake Bay Program (CBP) partnership are: → Water pollution from agriculture and animal waste, → Conversion of critical habitat like forest and marshes for new...
link

New high-resolution, land-use and change data improves decision-making in the Chesapeake Bay watershed

Issue Informing restoration across the nearly 64,000 square miles of the Chesapeake Bay watershed is an enormous challenge that requires detailed and accessible landscape data. Among the most pressing challenges being addressed by the Chesapeake Bay Program (CBP) partnership are: → Water pollution from agriculture and animal waste, → Conversion of critical habitat like forest and marshes for new...
Learn More