The Summer flounder, or fluke, is a large, tasty flatfish with a wide mouth able to consume a variety of prey. Summer flounder move inshore in the early spring months which is where the name summer flounder is derived. As an ambush predator, fluke are able to adapt their surface to match the pattern of the ocean bottom. Summer flounder may live as long as 14 years, reach lengths of 36 inches, and weigh up to 29 pounds. Flounder is a good, low-fat source of B vitamins and an excellent source of niacin. Summer flounder is one of the most sought after commercial and recreational fish along the Atlantic coast.