Home · Rajidae · Thorny skate
Thorny skate (Amblyraja radiata) — Rajidae

Thorny skate

Amblyraja radiata
Family: Rajidae
VU · Vulnerable

The Thorny skate (Amblyraja radiata) is a saltwater fish of the family Rajidae that grows up to 105 cm.

Length
105 cm
Water
Saltwater
Depth
5.0–1540.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Irregular
Substrate
Sand / mud bottom
Danger
Harmless
Edibility
Rarely eaten

Description

The thorny skate is a flat cartilaginous fish of the family Rajidae reaching about 105 cm. The diamond-shaped body, formed by the pectoral fins fused to the head, is brownish with light and dark spots. Characteristic is a row of large, star-shaped bucklers down the back and tail, while the whole upper side feels rough with fine thorns. The species lives on sand and mud bottoms of the northern Atlantic and the North Sea, from shallow water to more than a thousand metres. On the bottom it hunts crustaceans, worms, shellfish and small fish. It lays eggs in horny capsules and grows slowly; due to heavy fishing it is assessed as Vulnerable (VU).

Frequently asked questions

How do you recognise the Thorny skate?

The Thorny skate has an irregular in shape body, is mainly brown and shows a spots pattern.

Where does the Thorny skate live?

The Thorny skate lives in the sea (marine waters) and is mostly found around sand or mud bottom.

How big does the Thorny skate get?

The Thorny skate grows to a maximum of about 105 cm.

Is the Thorny skate dangerous to humans?

No, the Thorny skate is harmless to humans.

Is the Thorny skate edible?

The Thorny skate is rarely eaten.

Download Fin's Fish Guide

Identify fish in seconds, log your catches and dives. Join the TestFlight beta.

Get the beta →

All data

Identification

Dutch name
Sterrog sourced
English name
Thorny skate verified
Scientific name
Amblyraja radiata
Family
Rajidae
Other names
Atlantic pricly skate; Maiden ray; Miller; Miller ray; Starry ray verified

Appearance

Size class
Extra large verified
Max length (cm)
105.0 verified
Body shape
Irregular sourced
Dominant colour
Brown sourced
Pattern
Spots sourced
Tail shape
Straight inferred
Mouth position
Inferior (downward) inferred
Lips
Thin inferred
Barbels
No verified
Dorsal fins
Two separate sourced
Dorsal spines
Yes verified

Habitat & distribution

Water type
Saltwater verified
Substrate
Sand / mud bottom sourced
Min depth (m)
5.0 verified
Max depth (m)
1540.0 verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Social behaviour
Solitary verified
Territorial
No verified
Activity
Nocturnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
Yes verified
levensduur_max_jaar
28.0 verified

For anglers

Edibility
Rarely eaten verified
Fishing method
Bodemvissen met natuurlijk aas (worm, garnaal of vis) op of vlak boven de bodem. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced

Status & sources

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

Same genus Amblyraja

More from the family Rajidae

Download Fin's Fish Guide

Identify fish in seconds, log your catches and dives. Join the TestFlight beta.

Get the beta →