Bluefish

Bluefish is a kind of fish which occurs in the Atlantic Ocean, the Mediterranean, the Black Sea, the Indian Ocean and the Pacific. It is a pelagic fish, which means that it lives near the surface of the ocean. They can grow to a size of and reach a weight of . In the wild, they live to be about nine years old. 
Bluefish are predators: they hunt other fish, in small groups. Bluefish are caught commercially, and there is a problem with overfishing. 
Sometimes another species, Rock salmon or Coal fish is erroneously called Bluefish.