Giant Trevally

Photo: Nikolai Vladimirov · CC BY-NC

Giant trevally at Netrani Pinnacle form hunting coalitions that shadow whale sharks and tuna schools, capitalising on the confusion created by large predators to pick off disoriented reef fish. Schools of 30 to 100 juveniles are routinely seen spiralling around the pinnacle tip, while solitary large adults — some exceeding 80 centimetres — patrol deeper along the wall. Their aggressive hunting bursts produce some of the most dramatic mid-water action sequences found anywhere in Indian Ocean diving.