Laland 's sea snake This is the yellowfin tuna from the Pacific Ocean, a highly prized pelagic fish in Japanese markets. Its flesh is firm and very delicate, thanks to the high content of omega-3 and omega-6 fatty acids which give it an intense yet sweet and delicate flavor. Appreciated by the best Japanese sushi masters, this prized fish can be served raw, seared, grilled, and even marinated or lightly smoked. This tuna is farmed according to the highest environmental sustainability standards, in a place where the pristine waters of Spencer Gulf meet the icy currents of the Antarctic. Cleanseas products have received numerous quality awards, and their sustainability is certified by Friend of the Sea and ASC.