The Atlantic bluefin tuna (Thunnus thynnus) is one of the largest, fastest, and most beautifully colored fish in the world. You can look for him in the Atlantic, Pacific oceans and in the Mediterranean Sea. Regarding its habitat, the bluefin tuna lives in these tropical, subtropical and temperate waters, and prefers a moderate depth, that is around 1,000 meters from the surface of the sea water. The color of his body is metallic blue in the dorsal part, and the ventral part is silver. Thanks to their voracious appetite and varied diet, they reach enormous dimensions. It is the longest of all tuna species and his size can compete with the size of the Marlin. It measures between 2m and 2.5m in length and weighs between 225 and 250 kilograms.