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Psychrolutes phrictus Blob Sculpin, Giant Blob Sculpin

Psychrolutes phrictus is commonly referred to as Blob Sculpin, Giant Blob Sculpin. Difficulty in the aquarium: Cold water animal. Toxicity: Toxic hazard unknown.


Profilbild Urheber Gemeinfreies Foto / Public Domain

Foto: Davidson-Seamount. Küste Zentralkalifornien in 1317 Metern Tiefe)

/ NOAA/MBARI
Courtesy of the author Gemeinfreies Foto / Public Domain Gemeinfreies Foto

Uploaded by AndiV.

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lexID:
17863 
AphiaID:
274678 
Scientific:
Psychrolutes phrictus 
German:
Tiefsee-Groppe, Dickkopfgroppe, Quappengroppe, Blobfisch 
English:
Blob Sculpin, Giant Blob Sculpin 
Category:
Sculpins 
Family tree:
Animalia (Kingdom) > Chordata (Phylum) > Teleostei (Class) > Perciformes (Order) > Psychrolutidae (Family) > Psychrolutes (Genus) > phrictus (Species) 
Initial determination:
Stein & Bond, 1978 
Occurrence:
Russland, Arctic (North Polar Sea), Bering Sea, British Columbia, California, Canada Eastern Pacific, Gulf of Alaska (Pacific), Japan, Northeast Pacific Ocean 
Marine Zone:
Bathypelagial
The bathypelagial ranges from 1000 to 4000 meters depth.
The pressure in this depth zone is up to approx. 400 bar (4,000 tons per square meter or 400 kg per square centimeter.
There is no light left, only fish and bacteria can produce light in the form of bioluminescence. 
Sea depth:
500 - 2800 Meter 
Size:
up to 27.56" (70 cm) 
Weight:
9.5 kg 
Temperature:
2,3 °F - 4,8 °F (2,3°C - 4,8°C) 
Food:
Carnivore, Clams, Cnidaria, Crabs, Crustaceans, Fether stars, Food opportunist, Predatory, Snails, Zoobenthos 
Difficulty:
Cold water animal 
Offspring:
Not available as offspring 
Toxicity:
Toxic hazard unknown 
CITES:
Not evaluated 
Red List:
Not evaluated (NE) 
Related species at
Catalog of Life:
 
Author:
Publisher:
Meerwasser-Lexikon.de
Created:
Last edit:
2025-11-10 17:51:58 

Info

Photos of living fish from the deep sea, such as Psychrolutes phrictus, only reach the public through the use of deep-sea-capable underwater vehicles such as ROVs.
Through collaborations such as this one between the National Oceanic and Atmospheric Administration (NOAA) and the Monterey Bay Aquarium Research Institute (MBARI) in California, photos of the most incredible sea creatures are repeatedly brought to the attention of scientists and interested laypeople.

Dead animals are repeatedly landed by deep-sea fishing.
One of these dead animals was voted “world's ugliest animal” in 2013 because the fish looks like “a bald, old man who is struggling with life.”
https://www.nzz.ch/panorama/blobfisch-zum-haesslichsten-tier-der-welt-gekuert-ld.722173

One of the reasons for its appearance and the influence of gravity is its jelly-like body structure on the surface, which resembles a jellyfish-like creature.
Deep-sea creatures must possess a special characteristic by nature in order to withstand the water pressure that prevails there.
At the deepest point of 2800 meters, the water pressure is 280 bar, which corresponds to 2800 tons per square meter or 280 kg per square centimeter!
The elastic body of Psychrolutes phrictus seems to be ideally adapted to the pressure.

The largest specimens of Psychrolutes phrictus discovered often have ring-shaped patterns that could originate from the suction cups of the tentacles of squids or octopuses, as they also do from

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