Louisiana Wildlife and Fisheries - The Department of Wildlife and Fisheries is charged with the responsibility of managing and protecting Louisiana's abundant natural resources.
Wave-Current Surge Information System (WAVCIS) - WAVCIS provides wave information (sea state) including wave height, period, direction of propagation, water level, surge, near surface current speed and direction and meteorological conditions on a real time basis around the entire Louisiana coast.
US Fish and Wildlife Service - The mission of the U.S. Fish & Wildlife Service, working with others, is to conserve, protect, and enhance fish and wildlife and their habitats for the continuing benefit of the American people.
Center for Coastal Geology - This site studies the geology of the coastal systems. Great reading here
USGS - Louisiana Hydro Watch - The Statewide Real-Time Hydrologic Monitoring Network. Featuring the latest hydrologic information in Louisiana.