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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

Aligning Salt Marsh Science with Management Needs

Aligning Salt Marsh Science with Management Needs

EPA sets limits on 'forever chemicals' in drinking water

EPA sets limits on 'forever chemicals' in drinking water

Chesapeake Quarterly‘s Complicated Contaminants: Finding PFAS in the Chesapeake Bay

Chesapeake Quarterly‘s Complicated Contaminants: Finding PFAS in the Chesapeake Bay

Publications

Identifying the forage base and critical forage taxa for Chesapeake waterbirds

To effectively maximize the conservation value of management plans intended to capture ecosystem-wide health, it is essential to obtain an understanding of emergent patterns in dietary dynamics spanning many species. Chesapeake Bay, USA, is a critical ecosystem used annually by a diverse assortment of waterbird species, including several of conservation concern. However, the ecosystem is threatene
Authors
Matthew Hack, Jeffery D. Sullivan, Cody M. Kent, Diann Prosser

Causal inference approaches reveal both positive and negative unintended effects of agricultural and urban management practices on instream biological condition

Agricultural and urban management practices (MPs) are primarily designed and implemented to reduce nutrient and sediment concentrations in streams. However, there is growing interest in determining if MPs produce any unintended positive effects, or co-benefits, to instream biological and habitat conditions. Identifying co-benefits is challenging though because of confounding variables (i.e., those
Authors
Sean Cassian Emmons, Taylor E Woods, Matt J. Cashman, Olivia Devereux, Gregory B. Noe, John A. Young, Scott Stranko, Jay V. Kilian, Katherine Hanna, Kelly O. Maloney

Evaluating the effectiveness of joint species distribution modeling for fresh water fish communities within large watersheds

Accurately predicting species’ distributions is critical for the management and conservation of fish and wildlife populations. Joint Species Distribution Models (JSDMs) account for dependencies between species often ignored by traditional species distribution models. We evaluated how a JSDM approach could improve predictive strength for stream fish communities within large watersheds (the Chesapea
Authors
Paul McLaughlin, Kevin Krause, Kelly O. Maloney, Taylor E Woods, Tyler Wagner

Science

New studies reveal ecological importance of fine-scale groundwater connectivity for streams during drought

Stream ecosystems support vital resources that may be jeopardized by climate change and climate stressors such as drought.
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New studies reveal ecological importance of fine-scale groundwater connectivity for streams during drought

Stream ecosystems support vital resources that may be jeopardized by climate change and climate stressors such as drought.
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Agricultural and Urban Management Practices have Hidden Costs and Benefits to Stream Health

The findings of the study highlight that management practices can have both hidden costs and benefits to fish and macroinvertebrates depending on regional and local factors like how many and what type of management practices are implemented.
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Agricultural and Urban Management Practices have Hidden Costs and Benefits to Stream Health

The findings of the study highlight that management practices can have both hidden costs and benefits to fish and macroinvertebrates depending on regional and local factors like how many and what type of management practices are implemented.
Learn More
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New study highlights impact of current and historic land use on stream incision in Maryland Piedmont headwaters

A new method was developed to remotely identify small, eroding streams and measure change over time.
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