Atlantic Tarpon

The Atlantic tarpon (Megalops atlanticus) inhabits coastal waters, estuaries, lagoons, and rivers. The tarpon feeds almost exclusively on schooling fish and occasionally crabs. It is capable of filling its swim bladder with air, like a primitive lung. This gives the tarpon a predatory advantage when oxygen levels in the water are low. Tarpons have been recorded at up to 2.5 m (8 ft 2 in) in length and weighing up to 161 kg (350 lb). The Atlantic tarpon is also known as the silver king.

In appearance, a tarpon is greenish or bluish on top and silver on the sides. The large mouth is turned upwards and the lower jaw contains an elongated, bony plate. The last ray of the dorsal fin is much longer than the others, reaching nearly to the tail.

The Atlantic tarpon is found in the Atlantic Ocean, typically in tropical and subtropical regions, though it has been reported as far north as Nova Scotia and the Atlantic coast of southern France, and as far south as Argentina. As with all Elopiformes, it is found in coastal areas; it spawns at sea. Its diet includes small fish and crustaceans.

The tarpon is the official state saltwater fish of Alabama.