Caribbean reef shark

Photo: oakmastermetz · CC BY-NC

The national park status of Conception Island has allowed the Caribbean reef shark population to remain at natural densities, with 4-8 individuals routinely encountered on a single wall dive. They are apex predators whose presence structures the entire reef fish community below them, with prey species exhibiting natural fear responses that maintain reef grazing patterns. Scientists use reef shark density as a proxy for overall ecosystem integrity.