Also known as Australian Dart, Buck-nosed Trevally, Common Pompano, Derbio, Short Dorsalfin Pompano, Silverfish, Trevally.
Found in schools, over mud and sand bottoms, in shallow clearwater surge zones of estuaries and lagoons.
They feed on small crustaceans, fish and molluscs.
Length - 70cm
Depth - 5-200m
Widespread Eastern Atlantic, Mediterranean
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/Trachinotus-ovatus.html