The deepest living fish in the world.

The photo above is taken from a recording at a depth of 8,336 meters in the Izu-Ogasawara trench, southeast of Japan. This fish belongs to the species of snailfish, known in Latin as Pseudoliparis belyaevi. They lack scales, their skin is covered with mucus, and they have a tadpole-like shape. Their dorsal fin is large and extends to connect with the anal and caudal fins. They have very small eyes, and their bodies narrow towards the tail. Of particular interest is their pelvic fin, resembling a snail’s foot, which aids in their bottom-dwelling behavior, allowing them to adhere to the seabed at great depths. They lay their eggs in stones or cold-water corals at these depths. The average lifespan of these fish is about one year. They primarily feed on gammarids, decapods, crustaceans, and fish.

The discovery of this species suggests the possibility of more fish species living at depths below 8,000 meters. Due to the difficulty in capturing and studying this species, one researcher devised a method of creating a model using a condom and a robot to mimic its movements, facilitating further study.

Other Posts

Fishing under water

It’s ugly, brown, lives in the depths, and all you can see is light, do you already know what it is?

Alive but extinct

In 1938, off the coast of Africa, a lucky fisherman stumbled upon an extraordinary discovery: the Latimer fish, thought to have been extinct for a staggering 66 million years.

Pigbutt Worm

Scientists are still trying to determine whether this worm is a larva or an adult. It is difficult to determine because these worms grow to be 5 to 10 times larger than other hatopteroid larvae, which suggests that it is an adult.