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Bearded hardyhead (Atherion elymus) — Atherinidae

Bearded hardyhead

Atherion elymus
Family: Atherinidae
LC · Least Concern

The Bearded hardyhead (Atherion elymus) is a saltwater fish of the family Atherinidae that grows up to 6 cm.

Length
6.4 cm
Water
Saltwater
Depth
0.0–3.0 m
Diet
Carnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Stone or rock
Danger
Harmless
Edibility
Not eaten

Description

The bearded hardyhead is a small silverside of the family Atherinidae from the Indo-West Pacific. The species reaches only about 6 cm and has a slender, semi-transparent silvery body with a shining lateral stripe and two separate dorsal fins. It forms loose schools that inhabit tide pools, rocky shores and reef margins, just below the surface. The diet consists of small zooplankton. The eggs are relatively large and attach to the substrate with filaments. Owing to its small size the species has no fishery value.

Frequently asked questions

How do you recognise the Bearded hardyhead?

The Bearded hardyhead has an elongate, eel-like body, is mainly silver-grey and shows a horizontal stripes pattern.

Where does the Bearded hardyhead live?

The Bearded hardyhead lives in the sea (marine waters) and is mostly found around stony or rocky ground.

How big does the Bearded hardyhead get?

The Bearded hardyhead grows to a maximum of about 6 cm. On average the species is around 4 cm.

Is the Bearded hardyhead dangerous to humans?

No, the Bearded hardyhead is harmless to humans.

Is the Bearded hardyhead edible?

The Bearded hardyhead is not usually eaten.

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All data

Identification

Dutch name
Baard-koornaarvis sourced
English name
Bearded hardyhead verified
Scientific name
Atherion elymus
Family
Atherinidae
Other names
Bearded silverside; Japanese silverside; Pickleface hardyhead verified

Appearance

Size class
Small verified
Max length (cm)
6.4 verified
Average length (cm)
4.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Silver / grey inferred
Pattern
Horizontal stripes inferred
Tail shape
Forked inferred
Mouth position
Superior (upward) inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
Two separate inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
0.0 verified
Max depth (m)
3.0 verified
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Schooling inferred
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Not eaten sourced
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

More from the family Atherinidae

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