The Yellowfin Tuna weighs at least 400 pounds with a height of 7 feet. The Yellowfin Tuna could increase and decrease depending on its habitat and species around them. The Tuna normally travels ocean to ocean because of overfishing but could be found in the Pacific, Atlantic, Indian Ocean. Also it could be found in tropical and non tropical seas including the Mediterranean Sea. They are always traveling from Japan to the US Pacific Coast. A Yellowfin has a torpedo shaped body with a dark metallic blue back and yellow sides. Also they have a silver belly and long anal/dorsal fins. You could find bright yellow finlets on them as well. Depending on their habitat, they mostly eat squid, cuttlefish, octopus, shrimp, lobster, oceanic crabs and also a variety of fish. 