Reef Manta Ray

Reef manta rays (Mobula alfredi) typically reach disc widths of approximately 3 to 5 meters, making them noticeably smaller than the giant oceanic manta ray (Mobula birostris), which can reach about 7 meters. Despite the size difference, they are still among the largest rays in the world.

Reef manta rays inhabit coastal waters throughout the Indo-Pacific region, commonly found near coral reefs in areas such as the Great Barrier Reef, the Maldives, Hawaii, and the Philippines. Unlike the more pelagic giant oceanic manta ray, they tend to stay close to shore and exhibit strong site fidelity to specific reef systems.

Reef manta rays are frequently observed at coral reef cleaning stations, where small fish—such as cleaner wrasse—remove parasites and dead tissue from their bodies. These stations are popular locations for divers and snorkelers to observe reef mantas up close, since the rays often return to the same sites repeatedly.

Reef manta rays are currently listed as vulnerable on the IUCN Red List, with populations threatened by fishing pressure, bycatch, and habitat degradation. Their coastal habitat in the Indo-Pacific makes them both more accessible to ecotourism, which can support conservation, and more vulnerable to local fishing operations.