Natures wonders: massive fish migration in deep oceans (Introduction)

by David Turell , Friday, March 27, 2020, 00:53 (1701 days ago) @ David Turell

There are many undersea observation posts and migration is there:

https://phys.org/news/2020-03-scientists-document-seasonal-migrations-fish.html

"Scientists have, for the first time, documented seasonal migrations of fish across the seafloor in deep-sea fish, revealing an important insight that will further scientific understanding of the nature of our planet.

"'We are extremely excited about our findings, which demonstrate a previously unobserved level of dynamism in fishes living on the deep sea floor, potentially mirroring the great migrations which are so well characterised in animal systems on land," said Rosanna Milligan, Assistant Professor at Nova Southeastern University, who started the work at the University of Glasgow.

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"This study now provides evidence of cycles of movement across the seafloor in deep-sea fish, with the study authors believing these movements could be happening in other locations across the world's sea floor too.

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"'The work really adds to our understanding of movement patterns in deep-sea fishes and suggests reasons for their behaviours, Milligan said. "Because we were able to link the abundances of fish observed at the seafloor to satellite-derived estimates of primary productivity, our results suggest that even top-level predators and scavengers in the deep oceans could be affected by changes filtering down from the surface of the ocean.'"

Comment: It has to be the same ecosystems down there as up here following the same top predator patterns of organization.