Giant Trevally

Photo: Nikolai Vladimirov · CC BY-NC

Giant trevally circulate Malabar Pinnacle in loose groups, using the upwelling currents created by the seamount's topography to intercept schools of mackerel and small tuna. At Lord Howe Island they reach exceptionally large sizes given the absence of recreational fishing pressure in the marine park, and experienced divers occasionally witness cooperative hunting behaviour where individuals herd prey against the pinnacle's vertical walls.