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Blunthead shark (Triaenodon obesus) — Carcharhinidae

Blunthead shark

Triaenodon obesus
VU · Vulnerable

The Blunthead shark (Triaenodon obesus) is a saltwater fish of the family Carcharhinidae that grows up to 213 cm.

Length
213 cm
Water
Saltwater
Depth
0.0–330.0 m
Diet
Carnivore
Behaviour
Small groups
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Can cause injury
Edibility
Rarely eaten

Description

The whitetip reef shark is a reef shark (Carcharhinidae) from the Indo-West Pacific. The species has a slender, grey body with conspicuous white tips on the first dorsal fin and the upper tail lobe, to which the name refers, and grows to about 1.6 m. It is a sluggish inhabitant of lagoons and seaward reefs, often resting motionless in caves or under coral ledges by day and hunting fishes, crustaceans and octopuses in groups at night. Owing to fishing pressure it is considered vulnerable. It is usually not aggressive, but can bite when disturbed or provoked.

Frequently asked questions

How do you recognise the Blunthead shark?

The Blunthead shark has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern.

Where does the Blunthead shark live?

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

How big does the Blunthead shark get?

The Blunthead shark grows to a maximum of about 213 cm. On average the species is around 160 cm.

Is the Blunthead shark dangerous to humans?

The Blunthead shark can cause injury; handle it with care.

Is the Blunthead shark edible?

The Blunthead shark is rarely eaten.

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All data

Identification

Dutch name
Witpuntrifhaai sourced
English name
Blunthead shark verified
Scientific name
Triaenodon obesus
Family
Carcharhinidae
Other names
Blunthead shark; Blunt-head shark; Light-tip shark; Reef whitetip verified

Appearance

Size class
Extra large verified
Max length (cm)
213.0 verified
Average length (cm)
160.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey inferred
Pattern
Plain inferred
Tail shape
Crescent (lunate) inferred
Mouth position
Inferior (downward) inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
Two separate inferred
Dorsal spines
No sourced

Habitat & distribution

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

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Small groups inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
levensduur_max_jaar
25.0 verified

For anglers

Edibility
Rarely 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
Can cause injury sourced

Status & sources

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

More from the family Carcharhinidae

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