Oysters

Natural filter-feeders, oysters clean our waters and provide other animals with food and habitat, while making up one of the region’s most valuable fisheries.

Six Chesapeake Bay tributaries have been selected for oyster reef restoration. Use the map above to learn about the progress of each restoration project.

Oysters

For more than a century, oysters have made up one of the region's most valuable commercial fisheries. While the filter-feeder continues to clean our water and offer food and habitat to other animals, over-harvesting, disease and habitat loss have led to a severe drop in oyster populations.

50

The amount of water, in gallons, that one adult oyster can filter in a day

Today, native oysters populations are at less than one percent of historic levels. In the Chesapeake Bay Watershed Agreement, the Chesapeake Bay Program set a goal to restore reefs and populations in ten rivers by 2025. As of 2017, six tributaries have been selected for oyster restoration: Harris Creek, the Little Choptank River and the Tred Avon River in Maryland, and the Lafayette River, Lynnhaven River and Piankatank River in Virginia.

Each tributary that has been selected for oyster restoration is at a different level of progress in a process that involves developing a tributary restoration plan, constructing and seeding reefs, and monitoring and evaluating restored reefs. In Maryland, about 564 acres of oyster reefs are considered complete and about 370 acres remain to be restored in the Little Choptank and Tred Avon rivers. In Virginia, 158 acres of oyster reefs are considered complete and at least nine and a half acres remain to be restored in the Lafayette River. Restoration targets for the Piankatank and Lynnhaven rivers are being finalized.