The Chesapeake Bay Foundation recognizes that saving the Bay is uniquely tied to restoring the native oyster, Crassostrea virginica. Historically, Chesapeake oysters were the Bay's most valuable fishery. Ecologically, native oysters are equally important: they filter algae, sediment, and other pollutants. Oyster reefs also provide habitat for fish, crabs, and other Bay organisms. The Bay's native oyster population has been estimated at as low as one percent of historic levels, making restoration critical to help improve the Bay’s water quality and increase its economic viability.
In support of re-establishing this keystone species, CBF has established two facilities devoted to restoration of Crassostrea virginica.