Pseudoginglymostoma brevicaudatum

Pseudoginglymostoma brevicaudatum, commonly known as the shorttail nurse shark, is a bottom-dwelling elasmobranch species endemic to the western Indian Ocean. This relatively small shark species is characterized by its distinctive short tail and robust body structure, typically inhabiting shallow coastal waters around coral reefs and rocky substrates. The species has a limited geographic range, primarily found in waters around Madagascar, the Mascarene Islands, and parts of the East African coast.

As a benthic predator, the shorttail nurse shark feeds primarily on small fish, crustaceans, and mollusks, playing an important role in maintaining the ecological balance of reef ecosystems. The species faces severe population pressures due to its restricted range and specific habitat requirements. Coastal development and reef degradation have significantly reduced available habitat, while fishing pressure, both targeted and incidental, continues to impact remaining populations.

The shark's slow reproductive rate and late sexual maturity make population recovery particularly challenging once numbers decline. Climate change-induced coral bleaching and ocean acidification further threaten the reef systems upon which this species depends. Conservation efforts for the shorttail nurse shark remain limited, though some protection exists within marine protected areas throughout its range.

Enhanced monitoring programs and stricter fishing regulations are needed to prevent further population decline. International cooperation among range states is essential for developing effective conservation strategies for this critically endangered species.

This species inhabits shallow coastal waters, coral reefs, and rocky substrates in the western Indian Ocean. It prefers benthic environments where it can hunt for small fish, crustaceans, and mollusks among reef structures and sandy bottoms.