Natures wonders: manta rays dive up to 2,000 feet to feed (Introduction)

by David Turell @, Wednesday, March 18, 2020, 21:20 (1461 days ago) @ David Turell

An amazing adaptation. Think of the enormous pressures at that depth.

https://phys.org/news/2020-03-reef-manta-rays-caledonia-meters.html

"In the new study, Lassauce and colleagues report the results from nine PSAT tags deployed in New Caledonia, recording the world's deepest known dives for reef manta rays.

"All tagged individuals performed dives exceeding 300 m in depth, with a maximum depth of 672 m. Most of the deepest dives occurred during nighttime, possibly to access important food resources.

***

"Tagged Manta rays (Mobula alfredi) from the never-studied-before population of New Caledonia showed unprecedented deep dive behaviour. More frequent and deeper dives than ever recorded before, Manta rays of New Caledonia set a new depth range to 672 meters. "

Comment: Those enormous pressures would crush maladapted organisms.


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