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Blackedged blaasop (Arothron immaculatus) — Tetraodontidae

Blackedged blaasop

Arothron immaculatus
LC · Least Concern

The Blackedged blaasop (Arothron immaculatus) is a brackish-water fish of the family Tetraodontidae that grows up to 38 cm.

Length
37.5 cm
Water
Brackish
Depth
3.0–30.0 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Venomous / poisonous
Edibility
Not eaten

Description

The immaculate puffer is a pufferfish of the family Tetraodontidae from the Indo-West Pacific. The species grows to about 37 cm and has a stocky, plain grey-brown body with a yellow belly and a dark margin around the tail-fin base. It inhabits weedy areas, often in estuaries and seagrass beds. With its beak-like fused jaw plates it crushes hard-shelled prey such as molluscs, crustaceans and worms. Like other puffers it can inflate itself with water, and its skin and organs can contain the poison tetrodotoxin; therefore do not eat this fish.

Frequently asked questions

How do you recognise the Blackedged blaasop?

The Blackedged blaasop has a flattened, disc-shaped body, is mainly silver-grey and shows a plain pattern.

Where does the Blackedged blaasop live?

The Blackedged blaasop lives in brackish water and is mostly found around stony or rocky ground.

How big does the Blackedged blaasop get?

The Blackedged blaasop grows to a maximum of about 38 cm.

Is the Blackedged blaasop dangerous to humans?

The Blackedged blaasop is venomous — handle spines with care and seek medical help after a sting if needed.

Is the Blackedged blaasop edible?

The Blackedged blaasop is not usually eaten.

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All data

Identification

Dutch name
Effen kogelvis sourced
English name
Blackedged blaasop verified
Scientific name
Arothron immaculatus
Family
Tetraodontidae
Other names
Immaculate blow fish; Immaculate puffer; Immaculate pufferfish verified

Appearance

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

Habitat & distribution

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

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Solitary inferred
Territorial
No 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
Venomous / poisonous sourced

Status & sources

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

Same genus Arothron

More from the family Tetraodontidae

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