Bluefin Tuna

Bluefin tuna are deep blue on top, blending to silver along their sides and belly. Their lack of additional dark markings helps to differentiate them when young from bonito. These fish are built for speed, having an efficient torpedo shaped body coupled with a lunate shaped tail fin. Bluefin tuna can grow to an enormous size with the largest examples weighing above 1,500 pounds and measuring close to 12 feet in length.