Bluefin trevally

Juveniles of this species have silver color, while adults gain a golden coloration with vivid blue dorsal and anal fins. They can be found on rock and coral reefs, where they feed on fish and crustaceans to sate their voracious appetites.

Scientific Name
Caranx melampygus
Order: Perciformes, Family: Carangidae
Southern Japan, Indian Ocean, Pacific Ocean