Fish fishes underwater ocean sea sealife nature 51. Populations are found in many tropical and temperate waters especially around central pacific islands. The tiger shark galeocerdo cuvier is a species of requiem shark and the only extant member of the genus galeocerdoit is a large macropredator capable of attaining a length over 5 m 16 ft 5 in. Its name derives from the dark stripes down its body which resemble a tigers pattern but.