Known to some as the Tiger of the Sea, the bluefin tuna can swim at speeds of up to 60 mph and grow to 1500 lbs and 15 feet long! However, their popularity as sushi and sashimi, and the fact that they're slow to grow and reproduce has caused them to be severely overfished. Some species are even listed as Endangered. Seafood guides recommend avoiding ordering bluefin to allow the species to recover.
Bluefin meat also carries a health warning due to high concentrations of mercury and PCBs. Bluefin can be identified under several other names including hon maguro, kuro maguro, toro, or horse mackerel.
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