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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

Drought Monitoring and Operations

Drought Monitoring and Operations

In West Point, Virginia, a New 'Subsidence Superstation' Measures Changing Land Surface

In West Point, Virginia, a New 'Subsidence Superstation' Measures Changing Land Surface

Water quality in Chesapeake’s small watersheds gets a closer look

Water quality in Chesapeake’s small watersheds gets a closer look

Publications

METRIC: An interactive framework for integrated visualization and analysis of monitored and expected load reductions for nitrogen, phosphorus, and sediment in the Chesapeake Bay watershed

Reductions of nitrogen, phosphorus, and sediment loads have been the focus of watershed restoration in many regions for improving water quality, including the Chesapeake Bay. Watershed models and riverine monitoring data can provide important information on the progress of load reductions but do not always generate consistent interpretations. A new framework for integrated visualization...
Authors
Qian Zhang, Gary W. Shenk, Gopal Bhatt, Isabella Bertani

Highly pathogenic avian influenza virus H5N1 in double-crested cormorants (Nannopterum auritum) of the Chesapeake Bay, USA

Double-crested Cormorants (Nannopterum auritum) have historically exhibited low levels of infection and antibodies to avian influenza virus (AIV). The recent global expansion of clade 2.3.4.4b A/goose/Guangdong/1/1996 highly pathogenic (HP) avian influenza virus H5N1 (HPAI H5N1) has resulted in large-scale mortalities across diverse waterbird taxa including cormorants. We sampled 32 and...
Authors
Johanna Alexandra Harvey, Jeffery Dale Sullivan, Rebecca L. Poulson, Deborah L. Carter, Cindy P. Driscoll, Peter C. McGowan, Carl R. Callahan, Amy W. O'Donnell, Jennifer M. Mullinax, David E. Stallknecht, Diann Prosser

Reproductive parameters in invasive blue catfish (Ictalurus furcatus) from tributaries of the Chesapeake Bay in Maryland and Delaware, 2020–22

Over the past few decades, Ictalurus furcatus (Valenciennes in Cuvier and Valenciennes, 1840; blue catfish) have become a formidable invasive species in tidal tributaries of the Chesapeake Bay in Maryland and Delaware. Knowledge of their reproductive behaviors can support managers in the determination of ideal timing and implementation of mitigation strategies. In 2020–22, the U.S...
Authors
Heather L. Walsh, Christine L. Densmore, Amy M. Regish, Jessica Norstog, Johnny Moore, Branson Williams, Noah Bressman, Zachary Crum

Science

Informing Chesapeake Bay Watershed Management by Monitoring Trends in River Nutrient and Sediment Loads

The USGS has computed nutrient and suspended-sediment loads and trends through water year 2023 in Chesapeake Bay rivers. These monitoring-based estimates help federal, state, and local managers evaluate and plan water-quality restoration strategies.
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Informing Chesapeake Bay Watershed Management by Monitoring Trends in River Nutrient and Sediment Loads

The USGS has computed nutrient and suspended-sediment loads and trends through water year 2023 in Chesapeake Bay rivers. These monitoring-based estimates help federal, state, and local managers evaluate and plan water-quality restoration strategies.
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Avian Influenza Dynamics in the Chesapeake Bay Region

This project focuses on understanding the forces driving the risk of avian influenza transmission from wild waterfowl to domestic poultry within the Chesapeake Bay region.
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Avian Influenza Dynamics in the Chesapeake Bay Region

This project focuses on understanding the forces driving the risk of avian influenza transmission from wild waterfowl to domestic poultry within the Chesapeake Bay region.
Learn More

Avian Influenza Spread, Prevalence and Persistence

USGS researchers seek to understand the factors influencing the spread and persistence of avian influenza viruses on the landscape. This research also addresses how novel strains of highly pathogenic avian influenza are impacting a larger number and diversity of host species, including waterfowl, shorebirds, raptors and other birds.
link

Avian Influenza Spread, Prevalence and Persistence

USGS researchers seek to understand the factors influencing the spread and persistence of avian influenza viruses on the landscape. This research also addresses how novel strains of highly pathogenic avian influenza are impacting a larger number and diversity of host species, including waterfowl, shorebirds, raptors and other birds.
Learn More
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