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Marine Animal Encyclopedia

Bigeye Trevally Caranx sexfasciatus

During the day, shoals of bigeye trevally spiral lazily in coral reef channels and next to steep reef slopes, but at night, these fast-swimming predators split up and scour the reef for prey. Built for speed, these silvery fish have a narrow tail base, which is reinforced with bony plates called scutes, and a forked caudal fin. The bigeye trevally's first dorsal fin folds down into a groove to improve the streamlining of the fish, and the pectoral fins are narrow and curved.

There are many different species of trevally, which are difficult to tell apart. The bigeye trevally has a relatively large eye and the second dorsal fin usually has a white tip. These fish make good eating and are common in local markets in Southeast Asia. Juvenile bigeye trevally live close inshore and may enter estuaries and rivers.

Bigeye Trevallyzoom image
Bigeye Trevallyzoom image
Bigeye Trevallyzoom image
Bigeye Trevallyzoom image
  • Order Perciformes
  • Length Up to 4 ft (1.2 m)
  • Weight Up to 40 lb (18 kg)
  • Depth 3–330 ft (1–100 m)
  • Distribution Tropical waters of Indian Ocean and Pacific
Bigeye Trevally habitat mapzoom image