In Hawaii, “Ahi” refers to two species, the bigeye tuna and the yellowfin tuna. Similar in general appearance, the bigeye may be recognized by its plump
body, its larger head and its unusually large eyes. Bigeye (Thunnus obesus) are found in the subtropical and tropical areas of the Atlantic (but not in the Mediterranean), Indian and Pacific Oceans. The highly migratory species
is a fast-growing tuna that can reach about 6.5 feet in length and up to 400 pounds. It is generally larger than yellowfin and smaller than bluefin.
Good quality bigeye meat has a reddish-pinkish flesh color. It provides a moderately pronounced flavor that is slightly richer than yellowfin. Texture is
firm and meaty with large flakes similar to other tuna. Bigeye is one of the preferred species for sushi and sashimi, and its high fat content also puts it
among the most desirable species for grilling and serving as seared Ahi.