Black Sea Bass

This species attains a maximum total length of 66 centimetres (26 in), however they are normally found at a total length of around 30 centimetres (12 in), and a maximum published weight of 4.1 kilograms (9.0 lb).The black sea bass has an oblong, laterally compressed body. It has a large mouth, armed with bands of teeth on the jaw and with a triangular patch of teeth in the front part roof of the mouth and more teeth along the sides of that area, the mouth extending as far as below the middle of the eye. The preopercle has fine serrations on its margin and is evenly rounded, while the gill cover bears three flat spines. The dorsal fin has ten spines, the front spines being longer than the rearmost, and 11 soft rays. The membranes between the spines of the dorsal fin are deeply notched. The anal fin has three spines and seven soft rays.

The black sea bass is found in the western Atlantic Ocean from Nova Scotia south along the eastern coast of North America as far as the Florida Keys and into the Gulf of Mexico as far as Louisiana where the western limit is just to the west of the Mississippi Delta.

This predatory species has a broad diet which includes crabs, shrimps, barnacles, worms, tunicates, small fish and bivalves. They are also preyed on by larger fish and their known predators include monkfish (Lophius americanus), spotted hake (Urophycis regia), summer flounder (Paralichthys dentatus), striped bass (Morone saxatilis), bluefish (Pomatomus saltatrix), weakfish (Cynoscion regalis), little skate (Leucoraja erinacea), spiny dogfish (Squalus acanthias), bignose shark (Carcharhinus altimus) and dusky shark (Carcharhinus obscurus).

Females live to around 8 years of age while males can live to 12 years old. This species is a slow growing fish and they reach sexual maturity at between one and three years old. They are protogynous hermaphrodites, the majority of them begin life as females and then change to males. The stimulus for the change is not known but it is thought that the largest females change sex in response to a shortage of males within a spawning group. These fishes spawn from January to July with the smaller females producing as few as 30,000 eggs while the larger females can produce 500,000 eggs. Their eggs are pelagic and have a diameter of 0.9-1.0 mm. They hatch 75 hours after laying, in water temperatures of 16 °C (61 °F). The larvae are pelagic until they grow to around 13 millimetres (0.51 in) in length when they change to a demersal or estuarine habit.

Black sea bass are highly sought after by recreational and commercial fisherman. There are two populations identified for fisheries management. NOAA Fisheries, the Mid-Atlantic Fishery Management Council, and the Atlantic States Marine Fisheries Commission cooperate in the management of the black sea bass fishery in the seas north of Cape Hatteras in North Carolina while NOAA Fisheries and the South Atlantic Fishery Management Council manage the fishery south of Cape Hatteras. Management includes catch limits, permits and a close season.