Giant manta rays protected by Convention on Migratory Species

Photo credit: David Shiffman (Georgia Aquarium)

A few weeks after they were listed as Vulnerable on the IUCN Red List, giant manta rays (Manta birostris) have received major international legal protection. The Parties to the Convention on Migratory Species of Wild Animals (CMS) just agreed to list giant mantas on Appendix 1 and II of CMS at their tri-annual meeting in Bergen, Norway.  An Appendix I listing requires that any of the 116 CMS Party nations who have giant manta rays in their waters to protect them along with their habitat, while an Appendix II listing encourages global and regional cooperation. This proposal was introduced by Ecuador, and was supported by the European Union, United States, Australia, Senegal, Madagascar, Mozambique, Chile, and Uruguay. This year’s host country, Norway, also supported the proposal and proposed discussing the reef manta (Manta alfredi) at the next CMS meeting in 2014.

“We are elated that the CMS Parties have embraced Ecuador’s proposal for protecting the magnificent and exceptionally vulnerable giant manta ray,” said Sonja Fordham, President of Shark Advocates International. “CMS is an excellent vehicle for facilitating much needed national and international safeguards for this wide-ranging, globally threatened species and its key habitats.”

Giant mantas (the giant is appropriate as they can grow more than 7 meters across) are the target of directed fisheries for their gill rakers, which are used in traditional Chinese medicine. Their large size, predictable movement patterns, and relatively slow swimming speed makes them easy to catch, while many of their widely-distributed subpopulations number only a few hundred individuals. A listing under CMS appendices I and II is a welcome first step in the conservation of these gentle giants.


  1. Al Dove · November 25, 2011

    Hey David, that’s great news. Have you got a link to the original announcement?

  2. Mark Bradfield · November 25, 2011

    Great news! So pleased for Mark Harding, Andrea Marshall and all the other people working hard to raise the plight of mantas worlwide. Just need the relevant countries to step up with some appropriate enforcement action now…

  3. Sam Orrange · November 25, 2011

    I’m so happy to hear this! More countries really need to get on board though and do more. It seems like fishing or protection policies, even in the countries that do sign these treaties, are never quite enforced or strong enough, but at least this is a good step for the mantas!

  4. Sue Ferguson · November 25, 2011

    Great news for the manta rays! They grow slowly, and only have one pup a year. Thank goodness something is being done to protect these gentle giants.

  5. Paul Crooks · November 25, 2011

    Brilliant, but where you say Australia and where F.A.O zone 57 extends 77˚.00’E and throughout the bay of Bengal does this include Sri Lanka?
    I understand it that these critters are a favourable target of Sri Lanka.

Comments are closed.