Description

Also known as Amberjack, Armed Trevally, Horse Trevally, Jackfish, Kingfish, Long-finned Cavalla, Longfin Cavalla, Longfin Kingfish, Longtail Cavalla, Longtail Trevally, Round Trevally, Scad, Trevally.

Found singly when inshore, or in schools, patrolling reef slopes, close to corals and rocks, in shallow lagoons and coastal waters.
They feed on cephalopods, crustaceans, and fish.
Juveniles found in estuaries.
Length - 58cm
Depth - 1-59m
Widespread Indo-West Pacific

Jacks are fast swimming fish that can roam over great distances. The larger fish hunt other fish and the smaller fish eat zooplankton. In turn they are hunted by large Tuna and Dolphins. Ref: https://www.fishbase.se/summary/Carangoides-armatus.html