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Sergeant major (Abudefduf saxatilis) — Pomacentridae

Sergeant major

Abudefduf saxatilis
Family: Pomacentridae
LC · Least Concern

The Sergeant major (Abudefduf saxatilis) is a saltwater fish of the family Pomacentridae that grows up to 23 cm.

Length
22.9 cm
Water
Saltwater
Depth
0.0–20.0 m
Diet
Omnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Harmless
Edibility
Rarely eaten

Description

The sergeant major is a deep, oval reef fish of the family Pomacentridae (damselfishes) reaching about 23 cm. The silvery-yellow body bears five conspicuous black cross-bands, reminiscent of the stripes on a military uniform - hence the name. The species forms schools near coral and rock reefs, wrecks and harbour walls of shallow coastal water on both sides of the Atlantic. As an omnivore it eats algae, zooplankton, small invertebrates and growth. In the breeding season the male fiercely defends a territory, turns bluish and guards the purple eggs laid on a stone. For its abundance and striking markings it is one of the best-known reef fishes of the Atlantic coast.

Frequently asked questions

How do you recognise the Sergeant major?

The Sergeant major has a flattened, disc-shaped body, is mainly yellow-gold and shows a vertical stripes pattern.

Where does the Sergeant major live?

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

How big does the Sergeant major get?

The Sergeant major grows to a maximum of about 23 cm. On average the species is around 15 cm.

Is the Sergeant major dangerous to humans?

No, the Sergeant major is harmless to humans.

Is the Sergeant major edible?

The Sergeant major is rarely eaten.

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All data

Identification

Dutch name
Sergeant-majoor inferred
English name
Sergeant major verified
Scientific name
Abudefduf saxatilis
Family
Pomacentridae
Other names
Damsel fish; Damselfish; Five finger; Pilotfish; Sargeant major verified

Appearance

Size class
Medium verified
Max length (cm)
22.9 verified
Average length (cm)
15.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Yellow / gold sourced
Pattern
Vertical bars sourced
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
Yes verified

Habitat & distribution

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

Behaviour & biology

Diet
Omnivore verified
Social behaviour
Schooling verified
Territorial
Yes verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified

For anglers

Edibility
Rarely eaten verified
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 verified

Status & sources

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

Same genus Abudefduf

More from the family Pomacentridae

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