Blacktip Reef Shark

Photo: Poseidon’s Adventure · CC BY-NC

Small resident population patrols the outer reef edges and wreck superstructure, particularly active at dusk when they hunt schooling fish. In the Gulf their range is compressed into shallow, warm water where they display bolder behaviour around divers than in open-ocean populations. Sightings are most frequent from October through April when water temperatures drop and visibility improves.