description Hadal Snailfish Overview
The hadal snailfish is a deep-sea species of the Liparidae family, known for thriving in the extreme conditions of ocean trenches. Discovered at depths exceeding 8,000 meters in the Mariana Trench, it is recognized as the deepest-living fish ever recorded. To survive the immense pressure and cold, the fish lacks scales, has a translucent body, and possesses specialized cellular adaptations. It primarily feeds on small crustaceans and is an important subject of study for marine biologists investigating extremophile adaptations.
insights Ranking position
Hadal Snailfish ranks #2 of 255 in the Deep Sea Fish ranking, behind Barreleye, ahead of Goblin Shark.
help Hadal Snailfish FAQ
What is the deepest-living fish ever discovered?
The hadal snailfish currently holds the record, with specimens filmed and captured at staggering depths exceeding 8,000 meters in the Mariana Trench. The species was officially identified and described by researchers in 2017.
How does the hadal snailfish survive the crushing pressure of the hadal zone?
Unlike deep-sea fish that use rigid bones and air-filled swim bladders, the hadal snailfish has a highly flexible, cartilaginous skeleton and no swim bladder. It also possesses special proteins that prevent their cells from collapsing under pressure that would instantly crush most other surface-dwelling fish.
What does the hadal snailfish eat to survive at those depths?
As an apex predator of the deep trenches, it primarily feeds on tiny crustaceans like amphipods and small shrimp. These snailfish have large mouths and specialized teeth that allow them to easily scoop up the small invertebrates scavenging the ocean floor.
How was the Mariana snailfish first discovered?
Researchers from the University of Washington and the Schmidt Ocean Institute discovered the species using deep-sea landers equipped with high-resolution cameras and traps. These remote submersibles successfully retrieved live specimens between 2014 and 2017 from the Mariana Trench.
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