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Psychrolutes marcidus, commonly known as the blobfish, is a deep-sea fish of the family Psychrolutidae. It is characterized by its gelatinous, low-density flesh, which allows it to float above the seafloor without expending much energy in the extreme pressures of its deep-water habitat. Its appearance, particularly when brought to the surface, is often described as 'blob-like' or 'jelly-like' due to the decompression effects on its tissues. In its natural habitat, under immense pressure, its body structure is more typical of a fish, though still soft-bodied.
Körperliche Merkmale
- Körperform
- rounded
- Färbung
- Pinkish-grey to whitish, often appearing translucent.
- Schuppentyp
- none
- Maulstellung
- terminal
- Besondere Merkmale
- Large, bulbous head with a prominent, fleshy 'nose' (a modified snout), Small, widely spaced eyes, Absence of a swim bladder, Gelatinous, flabby body structure, especially when decompressed
- Rückenflosse
- Single dorsal fin, continuous, soft-rayed, extending along much of the back.
- Schwanzflosse
- Rounded caudal fin, relatively small.
- Brustflosse
- Small, fan-like pectoral fins, positioned low on the body.
- Auffällige Flossen
- Pelvic fins are absent or greatly reduced.
Bestimmungstipps
Body texture
Extremely soft and gelatinous, lacking firm muscle tissue. This is an adaptation to deep-sea pressure.
Head morphology
Large, bulbous head with a distinctive, fleshy, drooping 'nose' and small, widely set eyes.
Coloration
Pale, often pinkish-grey or whitish, appearing somewhat translucent.
Habitat
Found exclusively in very deep oceanic waters (600-1200m), making surface encounters extremely rare and usually only after being trawled.
Lebensraum
- Wassertyp
- saltwater
- Tiefe
- 600 to 1,200 meters (2,000 to 3,900 feet)
- Umgebung
- Benthic zone of the deep ocean, typically found just above the seafloor.
- Geografische Verbreitung
- Waters off the coasts of mainland Australia, Tasmania, and New Zealand.
Aquarieninformationen
- Pflegeaufwand: expert
- Temperament: peaceful
- Ernährung: carnivore
- Mindestbeckengröße: Not applicable (deep-sea species)
- Temperatur: 2-4°C (35-39°F)
- pH-Wert: 7.8-8.2
- Härte: Not applicable (deep-sea species)
- Verträglichkeit: Not applicable (deep-sea species)
- Besondere Anforderungen: Requires extreme deep-sea pressure and temperature conditions, making it impossible to keep in a conventional aquarium.
Informationen zum Wildbestand
- Erhaltungszustand: near threatened
- Saisonalität: Not applicable; deep-sea species do not exhibit seasonal behaviors in the same way as surface-dwelling fish.
- Marktpreis: None
- Kommerzielle Bedeutung: none
- Geschmack: Unknown, likely unpalatable due to gelatinous texture and deep-sea habitat.
- Textur: Gelatinous, watery, and soft.
- Nährwert: Unknown, not consumed by humans.
Wichtige Fakten
Deep-Sea Adaptationbehavior
The blobfish's gelatinous flesh is less dense than water, allowing it to float effortlessly above the seafloor without a swim bladder, which would collapse under extreme pressure.
Passive Hunterbehavior
It is believed to be a passive ambush predator, consuming anything edible that floats by, such as small crustaceans and other invertebrates.
Appearance Misconceptioninteresting
Its iconic 'blob-like' appearance is primarily a result of decompression damage when brought to the surface; in its natural habitat, it maintains a more typical fish shape, albeit with soft tissues.
Internet Sensationfunny
The blobfish gained significant internet fame and was voted the 'World's Ugliest Animal' in 2013, becoming the mascot for the Ugly Animal Preservation Society.
Conservation Concerninteresting
Despite its deep-sea habitat, the blobfish is considered 'Near Threatened' due to being caught as bycatch in deep-sea trawling operations.
Sicherheitsinformationen
Sicher- Sicherheitsstufe: safe
- Giftig: Nein
- Essbarkeit: not recommended
- Hinweise zum Umgang: No specific handling precautions are required beyond standard fish handling. However, due to its deep-sea habitat, it is rarely encountered alive and is not a threat to humans. Its body structure is extremely fragile when brought to the surface due to decompression.
Ähnliche Arten
Blobfish (other Psychrolutes species)
Psychrolutes phrictus
While sharing the general 'blobfish' morphology, P. phrictus typically has a more pronounced, almost spiny appearance on its head and body, and a slightly different geographic distribution (North Pacific).
Fathead Sculpin
Psychrolutes paradoxus
Generally smaller and found in shallower deep-water environments. Its 'fathead' appearance is less exaggerated than P. marcidus, and its body is often more uniformly colored.
Wissenschaftliche Klassifikation
- Reich
- Animalia
- Stamm
- Chordata
- Klasse
- Actinopterygii
- Ordnung
- Scorpaeniformes
- Familie
- Psychrolutidae
- Gattung
- Psychrolutes
- Art
- marcidus
Blobfish entdecken
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