Who invents new oysters? Stan Allen does. He not only breeds disease-resistant oysters by speeding up the familiar process of natural selection, but he's also created a new kind of oyster, an oyster nature never designed. His invention is called a triploid oyster. It carries extra chromosomes and in the right conditions, it can grow nearly twice as fast as natural oysters. Widely grown on oyster farms along the west coast and in other countries, the triploid oyster is now coming to the Chesapeake.

Video by Michael Fincham, Maryland Sea Grant.

Oyster gardening, growing baby oysters off a dock, keeps growing in popularity among Bay-area residents interested in restoring water quality in Chesapeake Bay. Most of those dockside oysters will end up on sanctuary reefs where they will go to work filtering water at the rate of 50 gallons a day. Maryland residents can now get oysters and gear and training from a number of environmental organizations around the state. Here's how one organization trains and equips new gardeners.

Video by Michael Fincham, Maryland Sea Grant.