The fish from the biggest depth

A new creature from the Mariana Trench look so normal that one wouldn’t expect that it comes from the depth of 8 km. There’s no giant mouth with terrifying teeth or any weird shape as we might expect. It was named Psuedoliparis swirei.

Marinara Trench - Source: Nat Geo Wild: Youtube

The Marinara Trench is a roughly 2 550 km long and on average 69 km wide underwater tectonic valley, located East from the Marinara Islands. On the 23rd January 1960, after for hours and forty eight the bathyscaphe Triest got to the bottom of the trench and reported a depth of 11 521 m.
Nowadays the research teams claim a little bit lower depth of 19 994 m or 10 920± 10 m or even a few other numbers. What’s sad is the fact that even here we are starting to find more plastic. But what is pleasing is that a completely new species of fish has been found there. It isn’t directly from the bottom, but it’s still the only fish that managed to adapt to such a depth – 8 km.

Pseudoliparis swirei - Source: osel.cz

Somewhat paradoxically, it’s a fish whose relatives can be found in many different seas around the whole globe. Ichthyologists confirmed that it’s an endemic species by analyzing three mitochondrial genes. The fish has been cataloged as a hadal liparid. The hadal marks creatures that live more then 6 kilometers deep and comes from the Greek god of the underworld Hades.
Caught fish will now be studied in detail. So far we only know that they like the live in groups, where they suck their prey into their mouths and that they have a taste for crustaceans.