This article needs additional citations for verification. Please help improve nigiri article by adding citations to reliable sources.
Amberjack is an Atlantic and Pacific fish in the genus Seriola of the family Carangidae. Greater amberjacks, Seriola dumerili, are the largest of the jacks. They usually have dark stripes extending from nose to in front of their dorsal fins. They have no scutes and soft dorsal bases less than twice the length of the anal fin bases.
Lesser amberjacks, Seriola fasciata, have proportionately larger eyes and deeper bodies than greater amberjacks. They are olive green or brownish-black with silver sides, and usually have a dark band extending upward from their eyes. Juveniles have split or wavy bars on their sides. Amberjacks are voracious predators, which feed on squid, fish, and crustaceans, and are thought to spawn offshore throughout most of the year. Banded rudderfish, Seriola zonata, is the second-smallest amberjack. This jack can be distinguished from the pilot fish by the presence of a first dorsal fin. Juveniles are banded vertically like pilotfish, and follow large objects or animals.