Bigeye tuna, Thunnus obesus

Illustration by Ubaldo Riboni

Illustration by Ubaldo Riboni

Description: A close relative of yellowfin tuna. Big eye is commonly called ahi which means "good to eat" in Hawaiian.

Availability: Open year-round, until yearly catch limit is met; closed to large purse seiners for a period of 62 days, from July 29 to September 28, or from November 18 to January 18

Taste: Big eye tuna have a moderately pronounced flavor, a high fat content with marbling near the skin and a richer flavor than yellowfin. Like other tuna, the texture is firm and meaty with large flakes.

Nutrition: Tuna provides selenium, phosphorous, iron, magnesium, potassium, and B vitamins and contains high levels of omega-3 fatty acids