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Milk shark (Rhizoprionodon acutus) — Carcharhinidae

Milk shark

Rhizoprionodon acutus
NT · Near Threatened

The Milk shark (Rhizoprionodon acutus) is a saltwater fish of the family Carcharhinidae that grows up to 175 cm.

Length
175 cm
Water
Saltwater
Depth
1.0–200.0 m
Diet
Carnivore
Behaviour
Schooling
Activity
Crepuscular
Body shape
Torpedo-shaped
Substrate
Open water
Danger
Harmless
Range
Eastern Atlantic along West Africa and widely distributed in the Indian and western Pacific Ocean, in shallow coastal water and estuaries; tolerates brackish water.
Edibility
Commonly eaten

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Description

The milk shark is a small, slender requiem shark of the family Carcharhinidae reaching about 1.8 metres, though usually smaller. The grey-brown, streamlined body has a strikingly long, pointed snout and large eyes. The species lives in schools in shallow coastal water and estuaries of the eastern Atlantic along West Africa and is widespread in the Indian and western Pacific; it tolerates brackish water. It hunts mainly small fish, shrimps, squid and crustaceans. The milk shark is viviparous and bears a few young per litter. It is one of the most common coastal sharks and harmless to people, but through intensive coastal fishing it has declined and is assessed as Near Threatened (NT).

Frequently asked questions

How do you recognise the Milk shark?

The Milk shark has a torpedo-shaped body, is mainly brown and shows a plain pattern. Small, slender requiem shark with a long, pointed snout and large eyes; a common coastal shark of warm seas, harmless to humans.

Where does the Milk shark live?

The Milk shark lives in the sea (marine waters) and is mostly found around open water. Eastern Atlantic along West Africa and widely distributed in the Indian and western Pacific Ocean, in shallow coastal water and estuaries; tolerates brackish water.

How big does the Milk shark get?

The Milk shark grows to a maximum of about 175 cm. On average the species is around 110 cm.

Is the Milk shark dangerous to humans?

No, the Milk shark is harmless to humans. None required: this species is harmless to humans.

Is the Milk shark edible?

Yes, the Milk shark is commonly eaten.

More photos

Milk shark (Rhizoprionodon acutus) — Carcharhinidae — 2
iNaturalist ((c) Fundación Tierra Ibérica, some rights reserved (CC BY-NC))
Milk shark (Rhizoprionodon acutus) — Carcharhinidae — 3
iNaturalist ((c) Alex Bairstow, some rights reserved (CC BY-NC))

Easily confused with

These species look like the Milk shark and live in the same waters.

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All data

Identification

English name
Milk shark verified
Scientific name
Rhizoprionodon acutus
Family
Carcharhinidae
Other names
Fish shark; Grey dog shark; Grey dog-shark; Little blue shark; Longmans dogshark; White-eye shark; Blacktip shark; Milk dog shark; Milkshark; Sharp-nosed milk shark; Sharp nosed shark; Walbeehm's sharp-nosed shark verified

Appearance

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

Habitat & distribution

Water type
Saltwater verified
Substrate
Open water verified
Min depth (m)
1.0 verified
Max depth (m)
200.0 verified
Natural range
Eastern Atlantic along West Africa and widely distributed in the Indian and western Pacific Ocean, in shallow coastal water and estuaries; tolerates brackish water. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Small fishes, shrimps, squid and crustaceans sourced
Social behaviour
Schooling verified
Territorial
No verified
Activity
Crepuscular inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified
levensduur_max_jaar
8.0 verified
Seasonality
Forms shoals in shallow coastal water; ovoviviparous, with a few young per litter and a short gestation. sourced
Special features
Small, slender requiem shark with a long, pointed snout and large eyes; a common coastal shark of warm seas, harmless to humans. sourced

For anglers

Edibility
Commonly eaten verified
Fishing method
Bottom fishing or casting with a baitfish in shallow coastal waters; a common catch in small-scale coastal fishing sourced
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
First aid
None required: this species is harmless to humans. sourced

Status & sources

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

Same genus Rhizoprionodon

More from the family Carcharhinidae

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