California Yellowtail is being caught by San Diego commercial fishermen, and they sell every bit - collars, heads, bones, in addition to the loins. Have you had it before? Raw yellowtail offers a firm texture and a clean, refreshing flavor. If raw fish isn't your thing, you can try it grilled! Hamachi Kama (yellowtail collar) is a popular item served at Japanese izakayas and offers a different way of enjoying yellowtail. The meat around the collar is super fatty and juicy.