MATTHEW OLDFIELD / SCIENCE PHOTO LIBRARY MATTHEW OLDFIELD / SCIENCE PHOTO LIBRARY
Jackfish. School of jackfish or big-eye trevally, Caranx sexfasciatus, silhouetted against the sun. These fish congregate in large schools during the day, seeking safety in numbers from predators. The resulting wall of fast-moving fish makes it difficult for a predator to focus on a single target. At night the school fragments to feed, mainly on smaller fish. Jackfish are fast- swimming predators reaching lengths of 80 centimetres. They inhabit tropical and subtropical coastal waters near reefs. They are regarded as an excellent food fish.
Model release not required. Property release not required.