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Brown stingray (Hemitrygon akajei) — Dasyatidae

Brown stingray

Hemitrygon akajei
Family: Dasyatidae
NT · Near Threatened

The Brown stingray (Hemitrygon akajei) is a brackish-water fish of the family Dasyatidae that grows up to 200 cm.

Length
200 cm
Water
Brackish
Depth
10.0–50.0 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Irregular
Substrate
Sand / mud bottom
Danger
Venomous / poisonous
Range
Northwest Pacific around East Asia; coral reefs, estuaries and sandy and muddy bottoms.
Edibility
Commonly eaten

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Description

The red stingray is a stingray of the family Dasyatidae from the north-western Pacific around East Asia. The species grows to about two metres (including the tail) and has a rhomboidal, flattened pectoral disc that is brownish with orange-red tints along the margins and around the eyes, and a long, whip-like tail. It inhabits coral reefs, estuaries and sand and mud bottoms of coastal waters. As a bottom hunter it digs in the bottom for molluscs, crustaceans, worms and small fishes. On the tail is a serrated, venomous spine; a sting causes severe pain, so never step on a resting ray and keep your distance. Owing to fishing the species is listed as Near Threatened (NT).

Frequently asked questions

How do you recognise the Brown stingray?

The Brown stingray has an irregular in shape body, is mainly brown and shows a plain pattern. Orange-red tints along the disc margin; serrated, venomous tail spine, near threatened (NT).

Where does the Brown stingray live?

The Brown stingray lives in brackish water and is mostly found around sand or mud bottom. Northwest Pacific around East Asia; coral reefs, estuaries and sandy and muddy bottoms.

How big does the Brown stingray get?

The Brown stingray grows to a maximum of about 200 cm. On average the species is around 100 cm.

Is the Brown stingray dangerous to humans?

The Brown stingray is venomous — handle spines with care and seek medical help after a sting if needed. The serrated tail spine contains venom; a sting causes severe pain and a deep wound. Immerse the wound in water as hot as can be tolerated (about 45 C), do not pull out an embedded spine yourself, and seek medical care.

Is the Brown stingray edible?

Yes, the Brown stingray is commonly eaten.

More photos

Brown stingray (Hemitrygon akajei) — Dasyatidae — 2
iNaturalist ((c) りなべる, some rights reserved (CC BY))
Brown stingray (Hemitrygon akajei) — Dasyatidae — 3
iNaturalist ((c) ryotaro_suzuki, some rights reserved (CC BY-NC))
Brown stingray (Hemitrygon akajei) — Dasyatidae — 4
iNaturalist ((c) Luke, some rights reserved (CC BY-SA))
Brown stingray (Hemitrygon akajei) — Dasyatidae — 5
iNaturalist ((c) kuroshio, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Brown stingray verified
Scientific name
Hemitrygon akajei
Family
Dasyatidae
Other names
Estuary stingaree; Estuary stingray; Japanese red stingray; Japanese stingray; Red skate; Whip stingray; Red stingray; Whip ray; Whipray; Yellow stingray verified

Appearance

Size class
Extra large verified
Max length (cm)
200.0 verified
Average length (cm)
100.0 verified
Body shape
Irregular sourced
Dominant colour
Brown inferred
Pattern
Plain inferred
Mouth position
Inferior (downward) inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Brackish sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
10.0 verified
Max depth (m)
50.0 verified
Natural range
Northwest Pacific around East Asia; coral reefs, estuaries and sandy and muddy bottoms. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Molluscs, crustaceans, worms and small fishes 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
Orange-red tints along the disc margin; serrated, venomous tail spine, near threatened (NT). sourced

For anglers

Edibility
Commonly eaten sourced
Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Venomous / poisonous sourced
First aid
The serrated tail spine contains venom; a sting causes severe pain and a deep wound. Immerse the wound in water as hot as can be tolerated (about 45 C), do not pull out an embedded spine yourself, and seek medical care. sourced

Status & sources

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

Same genus Hemitrygon

More from the family Dasyatidae

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