The greater amberjack is the largest of the jacks, the most important amberjack to anglers, and, like most of its brethren, a strong ﬁghter. It is high on the list of tropical marine fish suspected of causing ciguatera poisoning, although this problem may be isolated to certain areas.
IdentificationThis fish is greenish-blue to almost purple or brown above the lateral line and silver below the lateral line. A dark olive-brown diagonal stripe extends from the mouth across both eyes to about the ﬁrst dorsal fin. A broad amber stripe runs horizontally along the sides. The ﬁns may also have a yellow cast.
The greater amberjack has short foredorsal ﬁns, a bluntly pointed head, and no detached ﬁnlets. The amber stripe sometimes causes anglers to confuse the greater amberjack with the yellowtail, but it can be distinguished by the 11 to 16 developed gill rakers on the lower limb of the first branchial arch; the yellowtail has 21 to 28 gill rakers.