Wild Manta Ray Gill Plate Trade and Population Impacts

The demand for manta ray gill plates in traditional medicine markets has driven significant population declines and severe animal welfare harms.

Key Facts

Manta rays are targeted for their gill plates (cephalic fins used for filter feeding), sold primarily in Chinese markets for purported health benefits
No scientific evidence supports any medicinal benefit from manta ray gill plates
Manta rays have very low reproductive rates - females produce only one pup every 2-5 years
Both manta ray species (Mobula birostris and M. alfredi) are listed as Vulnerable on the IUCN Red List
CITES Appendix II listing in 2013 requires regulated trade documentation, but enforcement is inconsistent
Live manta rays in dive tourism generate far more economic value than dead rays - estimated at $1 million over a lifetime
Indonesia, the world largest manta ray fishery, banned manta hunting in 2014

Welfare Considerations

Manta ray fishing methods including entanglement in nets and harpoon capture cause acute trauma and prolonged suffering. As filter feeders with no defensive capabilities, mantas are particularly vulnerable to entanglement. Their slow reproductive rate means populations cannot recover quickly from hunting pressure, making individual deaths more ecologically significant.

What You Can Do

Support manta ray dive tourism as an economic alternative to hunting
Advocate for stronger enforcement of CITES protections for manta rays
Avoid purchasing products containing manta or mobula ray gill plates
Donate to manta ray research programs that support conservation arguments with population data
Learn about the science debunking medicinal claims for gill plates to counter demand