Yellowtail Amberjack

The Yellowtail Amberjack is a large, powerful member of the jack family (Carangidae), found in temperate and subtropical waters around the world, including the Pacific, southern Atlantic, and Indian Oceans. Also known regionally as Yellowtail Kingfish, it is closely related to other amberjacks and is prized as a strong-fighting gamefish. This species is an active, roaming predator that patrols reefs, rocky structure, kelp forests, and open water, often forming schools as juveniles before becoming more solitary or loosely grouped as adults. It plays a significant role as a mid-to-upper trophic predator, helping regulate populations of smaller reef and baitfish across its wide range.

• Body: elongated, muscular, and torpedo-shaped, typical of the jack family
• Color: olive to blue-green back, silvery sides, with a distinct bronze-yellow lateral stripe running from snout to tail
• Tail: yellow, deeply forked caudal fin, giving rise to the common name
• Head: dark diagonal bar running through the eye
• Size: typically 1-1.5 m, occasionally larger
• Look-alikes: other amberjacks lack the bright yellow lateral stripe and tail coloring seen in this species

Yellowtail Amberjack occupy temperate and subtropical coastal and offshore waters across much of the globe, including the eastern Pacific, western Pacific, southern Africa, and Australasia. They are typically found from nearshore reefs and kelp beds down to depths of around 100 m, often associating with rocky reefs, wrecks, drop-offs, and current lines. Juveniles frequently shelter near floating debris or kelp mats in open water before moving to reef and structure habitats as they mature. They favor cooler, nutrient-rich waters compared to many tropical jacks, which shapes their broader, more temperate distribution.

Yellowtail Amberjack are active, fast-swimming predators that hunt smaller fish, squid, and crustaceans, often ambushing prey near structure or chasing schools in open water. Juveniles are more social, forming loose schools for protection, while larger adults tend to be solitary or found in small groups. They are known for powerful, sustained runs when hooked, reflecting their muscular build adapted for pursuit predation. Spawning occurs offshore in warmer months, with pelagic eggs drifting in open water. As a significant predator of reef and baitfish, they help shape the structure of temperate reef fish communities across their range.