Edmund's Oast is serving butter-poached crab and shrimp; slow-baked grouper and soft shell crab for its first-ever Sustainable Seafood Dinner. Other responsibly-harvested ocean creatures on the menu for the May 19 event, organized by the South Carolina Aquarium, include flounder and clams. Dinner starts at 6 p.m., and tickets are priced at $95 (or $135 with beverage pairings.) Ten percent of the proceeds will benefit the South Carolina Aquarium Sustainable Seafood Initiative. For reservations, call 727-1145.