Both types of ahi tuna belong to the Thunnus genus and the mackerel family Scombridae. Ahi tunas prefer to swim in open oceans with depths of about 100 to 300 feet. Although not the largest tuna ...

The Atlantic bluefin tuna is one of the largest, fastest, and most gorgeously colored of all the world’s fishes. Their torpedo-shaped, streamlined bodies are built for speed and endurance.

Can tuna “ranching” help alleviate pressure on wild tuna populations? In the Mediterranean Sea, a relatively new aquaculture industry is “ranching” one of the world's largest wild fish ...