Researchers have identified the first recognized giant manta ray nursery in the Flower Garden Banks National Marine Sanctuary in the Gulf of Mexico, about 70 miles offshore from Galveston, Texas. Graduate student and executive director of Manta Trust Josh Stewart first made this discovery while studying adult mantas in the area for the first time. “I was there trying to get a genetic sample from a full grown manta, and that’s when I saw it. It was a juvenile male manta, which is a very rare,” Stewart told NPR. After expressing his excitement to local researchers, he was informed that young manta sightings were quite common there. He said, “And that’s when I knew that this was a really special, unique place.”
The local researchers at the National Oceanic Atmospheric Administration had misidentified the young manta rays as another species, neglecting to recognize the importance of this place until the arrival of an outside perspective. Typically, adult manta rays live in deep tropical and subtropical waters, making the study of these majestic sea creatures quite difficult. Young manta rays are almost never seen with adults.
“The juvenile life stage for oceanic mantas has been a bit of a black box for us, since we’re so rarely able to observe them,” Stewart explained. “We don’t know much about their movements, their feeding behavior and how that compares to the adults. Now we have a pool of juveniles that we can study.” The recognition of the nursery will ensure that these young mantas, now an endangered species in the U.S., are protected while also providing a road map for the protection of juvenile habitats around the world. “This research backs up the need for protection of other critical habitat, especially since manta rays have recently been designated as threatened species,” study co-author Michelle Johnston told the Herald Sun. “Threatened species need a safe space to grow up and thrive and live.”
Images via G.P. Schmahl / FGBNMS