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Tags reveal Chilean devil rays are among ocean's deepest divers
Date:7/1/2014

their feeding and survival could have major implications for their management and that of oceanic habitats," added co-author Pedro Afonso, a researcher at the Institute of Marine Research (IMAR) at the University of the Azores and the Laboratory of Robotics and Systems in Engineering and Science (LARSyS).

Little is known about the life span of devil rays or at what age they reproduce. Like other large rays, devil rays are thought to have just one pup born per litter about every two years.

"With those kinds of low reproductive rates, any type of mortality is going to have a big impact on the species," Thorrold said. "We don't know enough about devil rays to even know if we should be worried about their status. There are lines of evidence to suggest we ought to be worried, or at least that we should be trying to learn more about the biology and ecology of these rays."


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