 Pacific bluefin tuna

The Pacific bluefin tuna ("Thunnus orientalis") is a predatory species of tuna found widely in the northern Pacific Ocean, but it is migratory and also recorded as a visitor to the south Pacific.In the past it was often included in "T. thynnus", the 'combined' species then known as the northern bluefin tuna (when treated as separate, "T. thynnus" is called the Atlantic bluefin tuna).