Oysters as Ocean's Friends

Rick Levin is trying to keep the waters of Chesapeake Bay clean by building oyster reefs. VOA's Zdenko Novacki visits him in Pasadena, Maryland, to learn how oysters filter water and about the benefits of oyster reefs for the environment and other marine life. Camera: Philip Alexiou, Zdenko Novacki Produced by: Zdenko Novacki