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Blacktail sergeant (Abudefduf lorenzi) — Pomacentridae

Blacktail sergeant

Abudefduf lorenzi
Family: Pomacentridae
LC · Least Concern

The Blacktail sergeant (Abudefduf lorenzi) is a saltwater fish of the family Pomacentridae that grows up to 18 cm.

Length
18 cm
Water
Saltwater
Depth
1.0–6.0 m
Diet
Omnivore
Behaviour
Small groups
Activity
Diurnal
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Harmless
Range
Western Pacific
Edibility
Not eaten

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Description

The blacktail sergeant is a damselfish from the Western Pacific. The species grows to about 18 cm and has a deep, laterally compressed, silvery-white body with five dark cross-bars and a conspicuously dark tail. It lives in shallow water on coastal and reef margins, where it feeds on algae, small zooplankton and benthic invertebrates. Males guard the eggs laid on stone. The fish is harmless to humans. The IUCN assesses the species as Least Concern (LC).

Frequently asked questions

How do you recognise the Blacktail sergeant?

The Blacktail sergeant has a flattened, disc-shaped body, is mainly silver-grey and shows a vertical stripes pattern. Silvery-white body with five dark bands and a dark tail; nest-guarding damselfish

Where does the Blacktail sergeant live?

The Blacktail sergeant lives in the sea (marine waters) and is mostly found around stony or rocky ground. Western Pacific

How big does the Blacktail sergeant get?

The Blacktail sergeant grows to a maximum of about 18 cm.

Is the Blacktail sergeant dangerous to humans?

No, the Blacktail sergeant is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

Is the Blacktail sergeant edible?

The Blacktail sergeant is not usually eaten.

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All data

Identification

English name
Blacktail sergeant verified
Scientific name
Abudefduf lorenzi
Family
Pomacentridae
Other names
Black-tail sergeant; Black-tailed sergeant-major; Damselfish verified

Appearance

Size class
Medium verified
Max length (cm)
18.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Silver / grey sourced
Pattern
Vertical bars sourced
Tail shape
Forked inferred
Mouth position
Terminal sourced
Lips
Thin sourced
Barbels
No sourced
Dorsal fins
One continuous sourced
Dorsal spines
No sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
1.0 verified
Max depth (m)
6.0 verified
Natural range
Western Pacific verified
Origin
Native verified

Behaviour & biology

Diet
Omnivore sourced
Diet (detail)
Algae, zooplankton and benthic invertebrates inferred
Social behaviour
Small groups sourced
Territorial
Yes sourced
Activity
Diurnal sourced
Reproduction
Separate sexes sourced
Sexual dimorphism
No sourced
Seasonality
Nest-guarding small reef perch; present year-round. sourced
Special features
Silvery-white body with five dark bands and a dark tail; nest-guarding damselfish sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Fishing with natural bait (fish, shrimp, worm) or lures close to reef and rock structures. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. 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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