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# Fish, Streams, and Water Quality

## Enhanced Understanding of Factors Affecting Stream Condition Can Improve Restoration Outcomes

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The Chesapeake Bay watershed supports important recreational and commercial fisheries, but many are declining due to poor water quality, loss of quality habitat and increased invasive species. The USGS science activities are improving the understanding of how restoration and conservation efforts, along with land-use and climate change, are affecting conditions for fish, wildlife, and people.

## Browse Topics

Factors Affecting Water Quality

Fish Health and Toxic Contaminants

Freshwater Fish and Habitats

Nutrient, Sediment, and Flow

Streams and Environmental Change

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May 30, 2024

####                 New study highlights impact of current and historic land use on stream incision in Maryland Piedmont headwaters              

Chesapeake Bay Activities, Maryland-Delaware-D.C. Water Science Center

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May 30, 2024

####   New study highlights impact of current and historic land use on stream incision in Maryland Piedmont headwaters

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April 26, 2024

####                 New insights for reducing nutrient and sediment loads in agricultural watersheds prioritized for management activities              

Chesapeake Bay Activities, Virginia and West Virginia Water Science Center

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April 26, 2024

####   New insights for reducing nutrient and sediment loads in agricultural watersheds prioritized for management activities

Learn More

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April 12, 2024

####                 Phosphorus in the Susquehanna River may be tied to legacy sediment and changing pH              

Water Resources Mission Area, Chesapeake Bay Activities, Pennsylvania Water Science Center

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April 12, 2024

####   Phosphorus in the Susquehanna River may be tied to legacy sediment and changing pH

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April 11, 2024

####                 Wastewater reuse may be detrimental to smallmouth bass abundance in the Shenandoah River Watershed              

Cooperative Research Units, Chesapeake Bay Activities

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April 11, 2024

####   Wastewater reuse may be detrimental to smallmouth bass abundance in the Shenandoah River Watershed

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February 27, 2024

####                 Geospatial Analyses and Applications Core Technology Team              

Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Chesapeake Bay Activities

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February 27, 2024

####   Geospatial Analyses and Applications Core Technology Team

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February 21, 2024

####                 USGS Chesapeake Publication Receives National Award for Outstanding Technology Paper              

Chesapeake Bay Activities

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February 21, 2024

####   USGS Chesapeake Publication Receives National Award for Outstanding Technology Paper

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September 28, 2023

####                 USGS Publications Summarize Water-Quality Trends and Drivers in Urban Streams After 10 Years of Monitoring in Fairfax County, Virginia              

Chesapeake Bay Activities, Virginia and West Virginia Water Science Center

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September 28, 2023

####   USGS Publications Summarize Water-Quality Trends and Drivers in Urban Streams After 10 Years of Monitoring in Fairfax County, Virginia

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August 30, 2023

####                 Floodplains provide millions of dollars in benefits every year to people in the Chesapeake Bay and Delaware River watersheds              

Chesapeake Bay Activities, South Atlantic Water Science Center (SAWSC)

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August 30, 2023

####   Floodplains provide millions of dollars in benefits every year to people in the Chesapeake Bay and Delaware River watersheds

Learn More

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August 4, 2023

####                 Pennsylvania and the Chesapeake Bay Watershed              

Chesapeake Bay Activities, Pennsylvania Water Science Center

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August 4, 2023

####   Pennsylvania and the Chesapeake Bay Watershed

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July 18, 2023

####                 Fish Passage Design and Analysis at the S.O. Conte Research Laboratory              

Ecosystems Mission Area, Biological Threats and Invasive Species Research Program, Species Management Research Program, Chesapeake Bay Activities, Eastern Ecological Science Center

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July 18, 2023

####   Fish Passage Design and Analysis at the S.O. Conte Research Laboratory

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July 7, 2023

####                 Summarizing Science to Inform Management in the Chesapeake Bay Watershed              

Chesapeake Bay Activities

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July 7, 2023

####   Summarizing Science to Inform Management in the Chesapeake Bay Watershed

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May 25, 2023

####                 New study evaluates effects of agricultural conservation practices on nitrogen in streams of the Chesapeake Bay              

Chesapeake Bay Activities, Maryland-Delaware-D.C. Water Science Center

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May 25, 2023

####   New study evaluates effects of agricultural conservation practices on nitrogen in streams of the Chesapeake Bay

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