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Barred soapfish (Diploprion bifasciatum) — Serranidae

Barred soapfish

Diploprion bifasciatum
Family: Serranidae
LC · Least Concern

The Barred soapfish (Diploprion bifasciatum) is a saltwater fish of the family Serranidae that grows up to 25 cm.

Length
25 cm
Water
Saltwater
Depth
1.0–100.0 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Venomous / poisonous
Range
Indo-West Pacific; coastal areas and reef crevices.
Edibility
Not eaten

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Description

The two-banded soapfish is a soapfish of the family Serranidae from the Indo-West Pacific. The species grows to about 25 cm and has a deep, yellow body with two broad, dark crossbars. It lives mainly in coastal areas with somewhat turbid water, also near caves and crevices of rocky and coral reefs. As an ambush hunter it catches small fishes and crustaceans. When stressed its skin secretes a soapy, bitter and toxic mucus (grammistin) that deters predators; it is not dangerous to touch, but it is not eaten.

Frequently asked questions

How do you recognise the Barred soapfish?

The Barred soapfish has a flattened, disc-shaped body, is mainly yellow-gold and shows a vertical stripes pattern. When stressed it secretes a soapy, bitter poisonous skin mucus (grammistine) to deter predators.

Where does the Barred soapfish live?

The Barred soapfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Indo-West Pacific; coastal areas and reef crevices.

How big does the Barred soapfish get?

The Barred soapfish grows to a maximum of about 25 cm.

Is the Barred soapfish dangerous to humans?

The Barred soapfish is venomous — handle spines with care and seek medical help after a sting if needed. None required: this species is harmless to humans.

Is the Barred soapfish edible?

The Barred soapfish is not usually eaten.

More photos

Barred soapfish (Diploprion bifasciatum) — Serranidae — 2
iNaturalist ((c) Dominick Porcelli, some rights reserved (CC BY-NC))
Barred soapfish (Diploprion bifasciatum) — Serranidae — 3
iNaturalist ((c) Benoît Segerer, some rights reserved (CC BY-NC))
Barred soapfish (Diploprion bifasciatum) — Serranidae — 4
iNaturalist ((c) Robin Sidney Kraft, some rights reserved (CC BY-NC))
Barred soapfish (Diploprion bifasciatum) — Serranidae — 5
Tarciso Leão (CC BY-NC 4.0) via GBIF — iNaturalist
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All data

Identification

English name
Barred soapfish verified
Scientific name
Diploprion bifasciatum
Family
Serranidae
Other names
Barred soapfish; Yellow emperor; Two-banded perch; Two banded grouper; Two-band sea-perch; Two-banded sea perch; Two-banded sea-perch; Two-banded soapfish; Yellow striped grouper verified

Appearance

Size class
Medium verified
Max length (cm)
25.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Yellow / gold inferred
Pattern
Vertical bars inferred
Tail shape
Rounded 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)
100.0 verified
Natural range
Indo-West Pacific; coastal areas and reef crevices. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small fishes and crustaceans sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
When stressed it secretes a soapy, bitter poisonous skin mucus (grammistine) to deter predators. 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
Venomous / poisonous sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

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

More from the family Serranidae

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