An older yellowtail or Japanese Amberjack, growing up to 33 lb (15 kg) in weight. Names for this fish in Japanese vary depending on its age and hamachi is the name of a younger fish. Compared to other kinds of fish, yellowtail is richer in protein, good fat, and vitamins A, B1, B2 and D. At its best in autumn (US: fall) and winter, young yellowtail appears as sashimi while mature yellowtail is grilled or simmered.
