Chesapeake Bay Watershed Region Freshwater Mussel Partnership

The Chesapeake Bay Watershed Region Freshwater Mussel Partnership is a voluntary affiliation of stakeholders drawn by our interest in freshwater mussels to:

  • Advance and promote Conservation & Restoration; and,
  • Evaluate Water Quality best management practices (BMPs) to lessen excess nutrients and sediment in tributaries to the Bay.

Interest in freshwater mussels throughout the Chesapeake Bay Watershed is growing and for good reasons, such as:

  • Freshwater mussels are among North America’s and the Bay Region’s most endangered group of organisms
  • Freshwater mussels have unique life strategies linked to individual fish species
  • Much like benthic macroinvertebrates, freshwater mussels are indicators of existing water quality conditions in a stream
  • As they feed, freshwater mussels transfer suspended matter from the water column to the stream bed
  • Freshwater mussels are ecosystem engineers, capable of modifying aquatic habitat to make conditions more suitable for themselves and other organisms
Mussel Sampling in James River, VA Mussel sampling during 2025 Mussel & Buffer Symposium in the James River in Goochland, VA (August 12, 2025) Mussel Sampling in James River, VA on August 12, 2025
Freshwater mussels found while sampling James River during symposium (August 12, 2025)

News & Announcements

Freshwater Mussel Nutrient Reduction Literature Review and Assessment Report (July 2026): Prepared by Tetra Tech for USEPA and PADEP. This report lays a foundation for possible nutrient-reduction crediting in the Chesapeake Bay Total Maximum Daily Load framework based on mussel-mediated nutrient cycling processes. The report draws attention to dedicated funding needs and opportunities to expand basic science and research activities regarding current mussel populations throughout the Chesapeake Bay Watershed.

July 21, 2026

Freshwater Mussel Science Symposium Chesapeake Bay Foundation
Tuesday, August 11, 2026: 9 am to 5 pm
VCU Rice Rivers Center, Charles City, VA
Free registration required by August 5, 2026
July 21, 2026

Champions Of Potomac River Mussels Summon A ‘Science Barge’: article on Potomac Riverkeeper Network expanding its mussel-growing operations (The Baynet/Bay Journal)

July 20, 2026

Chesapeake Bay Foundation, in partnership with the Pamunkey Indian Tribe, received a National Fish & Wildlife Foundation Chesapeake Watershed Investment for Landscape Defense (WILD) grant with over $240,000 of the award devoted to freshwater mussel restoration activities in the Pamunkey River Watershed (February 2026)

February 13, 2026

Long-missing mussels returned to South Anna River: article on removal of 200-year old Ashland Dam paves way for return of freshwater mussels to Virginia’s South Anna River (VPM/NPR)

June 11, 2026

Meetings & Events Calendar

Partnership Steering Committee Meeting 2026 Schedule:

Monthly on the 4th Friday from 9-10 am

(virtual)


Resources

Freshwater Mussel Publications (link to Zotero website)

Lower Susquehanna Freshwater Mussel Survey Video (link to YouTube)



Archives




Get Involved!

Connect with the Partnership

Benefits include: join our mailing list and stay informed about Partnership initiatives, support an Action Team, meet and network with colleagues, attend our annual Symposium

About Us

The Chesapeake Bay Watershed Region Freshwater Mussel Partnership evolved mainly from the Chesapeake Bay Program’s Science & Technical Advisory Committee workshop (March 5-6, 2020): Incorporating Freshwater Mussels into the Chesapeake Bay Restoration Efforts and the National Fish & Wildlife Foundation and state of Maryland’s workshop (April 13, 2022): Broaden and Enhance Regional Freshwater Mussel Partnerships in the Chesapeake Bay.

In 2023, staff from the Susquehanna River Basin Commission transitioned to the role of coordinators for the Regional Freshwater Mussel Partnership. As coordinators, SRBC staff: facilitate communication among the Partnership members, Action Teams, and Steering Committees and with pertinent elements of the Chesapeake Bay Program; schedule Partnership Steering Committee meetings; coordinate an Annual Symposium; and manage resources and information for this web page.

Contact

For more information or questions, please email:

Monitoring & Protection Program
Susquehanna River Basin Commission
4423 North Front Street, Harrisburg, PA 17110
717-238-0423 X 1115