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Common skate (Dipturus batis) — Rajidae

Common skate

Dipturus batis
Family: Rajidae
CR · Critically Endangered

The Common skate (Dipturus batis) is a saltwater fish of the family Rajidae that grows up to 285 cm.

Length
285 cm
Water
Saltwater
Depth
100.0–1000.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Irregular
Substrate
Sand / mud bottom
Danger
Harmless
Range
Northeast Atlantic; formerly widespread, now mainly around Scotland and Ireland, on sandy and silty bottoms.
Edibility
Not eaten

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Description

The common skate is the largest ray in Europe; this flat cartilaginous fish of the family Rajidae reaches a wingspan of nearly 3 metres. The diamond-shaped body, formed by the pectoral fins fused to the head, has a long, pointed snout and is grey-brown to greenish with pale spots; a row of spines runs along the tail. The species lives on sand and mud bottoms of the north-eastern Atlantic, where it hunts bottom fish, crabs and lobsters. It lives more than fifty years, matures late and lays large egg cases. Because of this slow life history the common skate has almost vanished from the North Sea through fishing and is assessed as Critically Endangered (CR); in the EU it is strictly protected.

Frequently asked questions

How do you recognise the Common skate?

The Common skate has an irregular in shape body, is mainly brown and shows a spots pattern. The largest ray in Europe; a diamond-shaped, long-snouted ray with a row of spines on the tail. Very long-lived and slow-growing.

Where does the Common skate live?

The Common skate lives in the sea (marine waters) and is mostly found around sand or mud bottom. Northeast Atlantic; formerly widespread, now mainly around Scotland and Ireland, on sandy and silty bottoms.

How big does the Common skate get?

The Common skate grows to a maximum of about 285 cm. On average the species is around 100 cm.

Is the Common skate dangerous to humans?

No, the Common skate is harmless to humans. None required: this species is harmless to humans.

Is the Common skate edible?

The Common skate is not usually eaten.

Easily confused with

These species look like the Common skate and live in the same waters.

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All data

Identification

English name
Common skate verified
Scientific name
Dipturus batis
Family
Rajidae
Other names
Blue skate; Common skate; Flapper skate; Gray skate; Skate; Blue grey skate; Grey skate verified

Appearance

Size class
Extra large verified
Max length (cm)
285.0 verified
Average length (cm)
100.0 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)
100.0 verified
Max depth (m)
1000.0 verified
Natural range
Northeast Atlantic; formerly widespread, now mainly around Scotland and Ireland, on sandy and silty bottoms. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Bottom-dwelling fishes such as flatfish and gadoids, crabs and lobsters sourced
Social behaviour
Solitary verified
Territorial
No verified
Activity
Nocturnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
Yes verified
levensduur_max_jaar
51.0 verified
Seasonality
Very long-lived (over fifty years) and late to mature; lays large egg cases on the bottom, which makes the species extremely sensitive to fishing. sourced
Special features
The largest ray in Europe; a diamond-shaped, long-snouted ray with a row of spines on the tail. Very long-lived and slow-growing. sourced

For anglers

Edibility
Not eaten verified
Fishing method
Strictly protected in the EU: targeted fishing is banned; an accidentally caught skate must be released carefully and immediately 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 Dipturus

More from the family Rajidae

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