Help Protect Maui’s Coral Reefs and Manta Rays

Maui truly is blessed in being surrounded by an underwater wonderland. In addition to hosting one of the largest concentrations of humpback whales during their birthing season in the world, we are also lucky to have the chance to see other graceful, unique denizens of the deep, such as monk seals, several species of sharks and even manta rays.

Picture donated by Blake Moore

Maui is one of a few places in the entire world with a resident population of manta rays. Olowalu Reef, off of West Maui, is home to an estimated 350 resident reef manta rays. In nearshore reef locations, manta rays congregate around “cleaning stations”, where Hawaiian cleaner wrasse eat parasites of  the skin of a manta ray. Manta rays are also thought to breed in the shallow coral reef habitat.

Unfortunately, both species of manta ray (Manta birostris and Manta alfredi) are currently listed as vulnerable by the International Union for the Conservation of Nature. Manta rays are hunted in some countries for their skin, their fins (for the shark fin soup trade) and for their gill rakers, which are used in some Chinese medicines. Since manta rays mature slowly and have few pups, they are especially susceptible to fishing pressures. Manta rays around Maui have also been spotted entangled in fishing line and some have even lost part of their fins due to this marine debris. Learn more from HAMER.

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