More about bluefin tuna

 Bluefin tuna are top predators.Juveniles eat fish,squid,and crustaceans,and adults feed mainly on bait fish such as herring,bluefish and mackerel.

                    Juvenile and adult bluefin tuna are opportunistic feeders( as are most predators), and their diet can include jellyfish and salps ,as well as demersal and sessile species such as octopus,crabs and sponges.