Caribbean reef shark

Caribbean reef shark
source
Name	Caribbean reef shark
Status	NT
Status system	IUCN3.1
Genus	Carcharhinus
Species	perezi
Authority	(Poey, 1876)
Range map caption	Distribution of the Caribbean reef shark

Caribbean reef shark. A robust, large-bodied requiem shark of the family Carcharhinidae, it is one of the most common and iconic apex predators found on coral reefs throughout its range. This species plays a vital ecological role in maintaining the health of reef ecosystems in the tropical western Atlantic Ocean.

## Taxonomy and Evolution The species was first described by the Cuban zoologist Felipe Poey in 1876. Its specific epithet, *perezi*, honors another Cuban naturalist, Felipe Poey y Aloy. It is placed within the genus Carcharhinus, a diverse group that includes species like the bull shark and the blacktip shark. Phylogenetic studies suggest its closest relatives may include the Galapagos shark and the grey reef shark, indicating an evolutionary history tied to Indo-Pacific lineages that colonized the Atlantic Ocean. The taxonomic history has seen some confusion with similar species, but it is now recognized as distinct from the dusky shark and other reef sharks.

## Physical Characteristics This shark possesses a classic, streamlined requiem shark build with a moderately long, rounded snout and large, circular eyes. Adults typically reach lengths of 2–2.5 meters, with a maximum recorded length near 3 meters. The dorsal surface is a uniform gray-brown to dark gray, transitioning sharply to a white ventral side, a common countershading pattern in pelagic zone predators. The fins, particularly the first dorsal fin and the lower lobe of the caudal fin, often have dusky or black tips, though less pronounced than in the blacktip reef shark. Its teeth are triangular, serrated, and designed for cutting, similar to those of many other Carcharhinus species.

## Habitat and Distribution As its name implies, this shark is strongly associated with coral reef environments, typically inhabiting reef ledges and drop-offs. It is commonly found in clear waters on the outer edges of reefs but also frequents lagoons and sometimes even mangrove areas. Its distribution is centered in the Caribbean Sea, including areas around The Bahamas, the Florida Keys, and the Greater Antilles. The range extends north to Bermuda, south along the coast of South America to Brazil, and throughout the Gulf of Mexico. It is generally a resident of continental and insular shelves, rarely venturing into deeper oceanic waters beyond the reef slope.

## Behavior and Diet A slow-moving, bottom-oriented predator, it often rests motionless on the sea floor during the day, a behavior observed at specific sites like Tiger Beach in The Bahamas. It is primarily nocturnal, becoming more active at night to hunt. Its diet consists mainly of bony fish such as parrotfish, surgeonfish, and rays, but it also consumes cephalopods like octopus and larger crustaceans. It employs a stealthy, ambush-style hunting technique. Observations at places like Shark Ray Alley in Belize show it can be curious around divers but is not considered highly aggressive unless provoked.

## Conservation Status The International Union for Conservation of Nature lists the Caribbean reef shark as **Near Threatened** globally. Primary threats include overfishing, both targeted and as bycatch in longline fishing and gillnet fisheries. Its restricted coastal habitat and low reproductive rate—it is a viviparous species with small litters—make it vulnerable to population declines. It is protected in some areas, such as within the Exuma Cays Land and Sea Park and other marine protected areas in The Bahamas and the Florida Keys National Marine Sanctuary. However, enforcement of regulations across its range, particularly in parts of Central America and South America, remains a significant challenge for conservation.

Category:Sharks of the Atlantic Ocean Category:Fish of the Caribbean Category:Fauna of the Gulf of Mexico