Researchers discover the deepest fish ever seen in the ocean – tech2.org

Researchers discover the deepest fish ever seen in the ocean



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In the dark depths of the ocean, researchers have discovered a new species of fish. The fish, called the marine snailfish, lives in Mariana Trench at depths of around 8,000 meters (26,200 feet) below the surface of the ocean, making it the deepest fish in the world found so far.

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Mariana Trench, located in the western Pacific Ocean, contains the deepest point on Earth and has long been a source of fascination for researchers. The new snaifish was originally captured during expeditions in 2014 and then in early 2017, but it was not until now that researchers formally identified it as a new species and gave it a name.

"This is the deepest fish that has been collected" from the bottom of the ocean, and we are very happy to have an official name, "said lead author Mackenzie Gerringer of Friday Harbor Laboratories of the University of Washington." They do not look too strong or strong to live in such an extreme environment, but they are extremely successful. "

The small, translucent, scaleless Marian catfish thrives in those depths of the ocean where only a few animals exist. group form and feed on small crustaceans and shrimp, however, very little is known about how these fish can survive in harsh conditions thousands of feet below the surface.

"The snail fish have adapted to deepen more than other fish and can live in deep trenches. Here they are free of predators, "The shape of the trench funnel means there is much more food," said co-author Thomas Linley of the University of Newcastle. "There are many invertebrate prey and the snail is the main predator, they are active and they look very well fed".

During research trips in recent years, scientists have conducted some exhaustive surveys of the trench and its inhabitants and I found prosperous communities active there. The discovery of fish species can provide an idea of ​​the physiological adaptations of animals to this high pressure environment.

"There are many surprises waiting," said Gerringer. "It is amazing to see what lives there, we consider it a hostile environment because it is extreme for us, but there is a whole group of organisms that are very happy there."

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