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False cusk (Parabrotula plagiophthalma) — Parabrotulidae

False cusk

Parabrotula plagiophthalma
LC · Least Concern

The False cusk (Parabrotula plagiophthalma) is a saltwater fish of the family Parabrotulidae that grows up to 5 cm.

Length
5.4 cm
Water
Saltwater
Depth
0.0–3000.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Snake-like
Substrate
Open water
Danger
Harmless
Edibility
Not eaten

Description

The false cusk is a very small, flabby deep-sea fish of the family Parabrotulidae reaching about 5 cm. The elongate, jelly-like body is dark and has a continuous fin fringe in which the dorsal, tail and anal fins merge; true pelvic fins are absent. Unlike most brotulas, which live on the bottom, this species hovers in the open water of the deep sea worldwide, including the Atlantic, from the surface to several thousand metres. It feeds on small zooplankton. Notably, it is a livebearer, with internal fertilisation. Because of its small size and life in the deep open water it is rarely observed and has no fishery importance.

Frequently asked questions

How do you recognise the False cusk?

The False cusk has a snake-like body, is mainly black and shows a plain pattern.

Where does the False cusk live?

The False cusk lives in the sea (marine waters) and is mostly found around open water.

How big does the False cusk get?

The False cusk grows to a maximum of about 5 cm.

Is the False cusk dangerous to humans?

No, the False cusk is harmless to humans.

Is the False cusk edible?

The False cusk is not usually eaten.

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All data

Identification

Dutch name
Schijn-brotula inferred
English name
False cusk verified
Scientific name
Parabrotula plagiophthalma
Family
Parabrotulidae

Appearance

Size class
Small verified
Max length (cm)
5.4 verified
Body shape
Snake-like sourced
Dominant colour
Black sourced
Pattern
Plain sourced
Tail shape
Straight inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Saltwater verified
Substrate
Open water sourced
Min depth (m)
0.0 verified
Max depth (m)
3000.0 verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Social behaviour
Solitary verified
Territorial
No verified
Activity
Nocturnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified

For anglers

Edibility
Not eaten verified
Fishing method
Geen doelsoort voor de hengelsport; hooguit incidentele vangst of bruikbaar als aasvisje. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

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