Yellowtail Amberjack

The yellowtail amberjack occurs in tropical and temperate waters of the Southern Hemisphere and the northern Pacific. In Australia, it is recorded from North Reef, Queensland, (23° 11′ S) to Trigg Island, Western Australia, (31° 52′ S), and as far south as Tasmania.

The yellowtail amberjack (or yellowtail kingfish as it is known in Australia) is a highly mobile pelagic species, and tends to either form single-species schools, or combine with southern bluefin tuna (Thunnus maccoyii) and silver trevally (Pseudocaranx dentex). They prefer water temperatures of 17‒24 °C.

In general, they inhabit rocky reefs and adjacent sandy areas in coastal waters and occasionally enter estuaries. They are found from shallow water down to depths around 50 m (160 ft), although have been caught from over 300 m (980 ft).

Being a pelagic fish, yellowtail amberjack are highly active predators, usually in schools or in pairs. Their main diet consists of baitfish including yellowtail mackerel, squid, prawns, garfish, pilchards and kahawai. Yellowtail amberjacks are one of the major predator species in New Zealand waters, and have been recorded eating seabirds.

Yellowtail amberjacks are known for their curiosity around human vessels. The fish often accompany stingrays in harbours and estuaries, making use of the stingrays ability to sense fish through electroreception.