The mahi-mahi or common dolphinfish (Coryphaena hippurus) is a surface-dwelling ray-finned fish found in off-shore temperate, tropical and subtropical waters worldwide. Also known widely as dorado, it is one of only two members of the Coryphaenidae family, the other being the pompano dolphinfish. In other languages the fish is known as dorade coryphène, lampuga, lampuka, lampuki, rakingo, calitos, or maverikos.
Mahi-mahi can live up to 5 years (although they seldom exceed four). Catches average 7 to 13 kilograms (15 to 29 lb). They seldom exceed 15 kilograms (33 lb), and mahi-mahi over 18 kilograms (40 lb) are exceptional.
Mahi-mahi have compressed bodies and long dorsal fins extending nearly the entire length of their bodies. Their caudal fins and anal fins are sharply concave. They are distinguished by dazzling colors: golden on the sides, and bright blues and greens on the sides and back. Mature males have prominent foreheads protruding well above the body proper. Females have a rounded head. Females are also usually smaller than males.
Out of the water, the fish often change color among several hues (giving rise to their Spanish name, dorado, “golden”), finally fading to a muted yellow-grey upon death.