Green reports on a North Carolina Sea Grant study that seeks to determine how oyster larvae move about. The study focuses on the American oyster, which often faces constantly changing and harsh conditions in the state's sounds and rivers. Each oyster produces millions of eggs annually that move by currents and tides to the surrounding areas. Protecting this broodstock increases the availability of native oysters. Preliminary movement data indicate that estuarine currents usually follow the wind's direction, which is probably the same pattern for larvae. Knowing where the larvae will be in certain areas aids in the building of new oyster sanctuaries and in the deployment of materials to support those areas.