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Damselfish (Acanthochromis polyacanthus) — Pomacentridae

Damselfish

Acanthochromis polyacanthus
Family: Pomacentridae
LC · Least Concern

The Damselfish (Acanthochromis polyacanthus) is a saltwater fish of the family Pomacentridae that grows up to 16 cm.

Length
16 cm
Water
Saltwater
Depth
1.0–65.0 m
Diet
Omnivore
Behaviour
Small groups
Activity
Diurnal
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Harmless
Edibility
Not eaten

Description

The spiny chromis is a damselfish of the family Pomacentridae from the western Pacific. The species grows to about 16 cm and has a stocky body grading from dark at the head to lighter at the tail. Adults inhabit inshore and offshore coral reefs. Notably, this is the only damselfish without a pelagic larval stage: the young hatch directly as small fish and stay with the parents, who protect and defend the brood for weeks. As an omnivore it feeds on zooplankton, algae and small invertebrates. The species is harmless to humans.

Frequently asked questions

How do you recognise the Damselfish?

The Damselfish has a flattened, disc-shaped body, is mainly brown and shows a plain pattern.

Where does the Damselfish live?

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

How big does the Damselfish get?

The Damselfish grows to a maximum of about 16 cm.

Is the Damselfish dangerous to humans?

No, the Damselfish is harmless to humans.

Is the Damselfish edible?

The Damselfish is not usually eaten.

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All data

Identification

Dutch name
Stekel-rifjuffer sourced
English name
Damselfish verified
Scientific name
Acanthochromis polyacanthus
Family
Pomacentridae
Other names
Spiny chromis verified

Appearance

Size class
Medium verified
Max length (cm)
16.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Brown inferred
Pattern
Plain inferred
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

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

Behaviour & biology

Diet
Omnivore sourced
Social behaviour
Small groups inferred
Territorial
Yes inferred
Activity
Diurnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Not eaten sourced
Fishing method
Vissen met natuurlijk aas (vis, garnaal, worm) of kunstaas dicht bij rif- en rotsstructuren. 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 Pomacentridae

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