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Japanese beardfish (Polymixia japonica) — Polymixiidae

Japanese beardfish

Polymixia japonica
Family: Polymixiidae
LC · Least Concern

The Japanese beardfish (Polymixia japonica) is a saltwater fish of the family Polymixiidae that grows up to 30 cm.

Length
30 cm
Water
Saltwater
Depth
160.0–628.0 m
Diet
Carnivore
Behaviour
Small groups
Body shape
Torpedo-shaped
Substrate
Mixed bottom
Danger
Harmless
Edibility
Rarely eaten

Description

The Japanese beardfish (Polymixia japonica) is a deep-water fish of the family Polymixiidae from the northwestern Pacific. The species has a stocky, silvery body with large eyes and, characteristically, a pair of long chin barbels under the mouth, from which it takes its name. It reaches about 30 cm and lives in the middle to bottom zone over sandy-mud bottoms of the continental slope. With its chin barbels it probes the bottom for benthic invertebrates. The Polymixiidae form an ancient, distinct group of bony fishes. The species is landed locally as bycatch and is of limited commercial importance.

Frequently asked questions

How do you recognise the Japanese beardfish?

The Japanese beardfish has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern.

Where does the Japanese beardfish live?

The Japanese beardfish lives in the sea (marine waters) and is mostly found around mixed bottom.

How big does the Japanese beardfish get?

The Japanese beardfish grows to a maximum of about 30 cm. On average the species is around 20 cm.

Is the Japanese beardfish dangerous to humans?

No, the Japanese beardfish is harmless to humans.

Is the Japanese beardfish edible?

The Japanese beardfish is rarely eaten.

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All data

Identification

Dutch name
Japanse baardvis sourced
English name
Japanese beardfish verified
Scientific name
Polymixia japonica
Family
Polymixiidae
Other names
Silver eye verified

Appearance

Size class
Medium verified
Max length (cm)
30.0 verified
Average length (cm)
20.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey inferred
Pattern
Plain inferred
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
Yes sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Mixed bottom sourced
Min depth (m)
160.0 verified
Max depth (m)
628.0 verified
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Small groups inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Rarely eaten sourced
Fishing method
Bodemvissen met natuurlijk aas (worm, garnaal of vis) op of vlak boven de bodem. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced

Status & sources

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

Same genus Polymixia

More from the family Polymixiidae

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