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White skate (Rostroraja alba) — Rajidae

White skate

Rostroraja alba
Family: Rajidae
EN · Endangered

The White skate (Rostroraja alba) is a saltwater fish of the family Rajidae that grows up to 230 cm.

Length
230 cm
Water
Saltwater
Depth
30.0–600.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Flat / disc-shaped
Substrate
Sand / mud bottom
Danger
Can cause injury
Range
Northeast Atlantic and the Mediterranean Sea, on sandy and gravel bottoms of the continental shelf and the upper slope; today reduced to small remnant populations.
Edibility
Rarely eaten

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Description

The white skate is a large skate of the family Rajidae reaching a total length of about 2.3 metres and a wingspan of over one and a half metres. The diamond-shaped body, formed by the pectoral fins fused to the head, has a pointed snout; the upper side is grey-brown with fine pale spots, while the white underside has a dark-rimmed rear edge to the fins. Young animals are more boldly marked than adults. The species lives on sand and gravel bottoms of the continental shelf and upper slope of the north-eastern Atlantic and the Mediterranean. On the bottom it hunts fish, crustaceans and squid. It grows slowly and has declined sharply through fishing; it is assessed as Endangered (EN).

Frequently asked questions

How do you recognise the White skate?

The White skate has a flattened, disc-shaped body, is mainly brown and shows a spots pattern. Large ray with a pointed snout; upperside grey-brown with small light blotches, underside white with a dark-rimmed rear edge to the fins.

Where does the White skate live?

The White skate lives in the sea (marine waters) and is mostly found around sand or mud bottom. Northeast Atlantic and the Mediterranean Sea, on sandy and gravel bottoms of the continental shelf and the upper slope; today reduced to small remnant populations.

How big does the White skate get?

The White skate grows to a maximum of about 230 cm.

Is the White skate dangerous to humans?

The White skate can cause injury; handle it with care. None required: this species is harmless to humans.

Is the White skate edible?

The White skate is rarely eaten.

More photos

White skate (Rostroraja alba) — Rajidae — 2
Wikimedia Commons — Theo Modder (CC BY 3.0)
White skate (Rostroraja alba) — Rajidae — 3
Wikimedia Commons — Giorgio Liberale (Public domain)

Easily confused with

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

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All data

Identification

English name
White skate verified
Scientific name
Rostroraja alba
Family
Rajidae
Other names
Bordered skate; Bottlenose; Bottlenose skate; Bottlenosed skate; Burton skate; Spearnose skate; Bordered ray; Owl skate; White bordered skate; White bottle-nose skate; White-bellied skate verified

Appearance

Size class
Extra large verified
Max length (cm)
230.0 verified
Body shape
Flat / disc-shaped verified
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)
30.0 verified
Max depth (m)
600.0 verified
Natural range
Northeast Atlantic and the Mediterranean Sea, on sandy and gravel bottoms of the continental shelf and the upper slope; today reduced to small remnant populations. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Other fishes, crustaceans and cephalopods from the bottom sourced
Social behaviour
Solitary verified
Territorial
No verified
Activity
Nocturnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
Yes verified
Seasonality
Lays eggs in large horny capsules on the bottom; grows slowly and matures late, which makes the species vulnerable to fishing. sourced
Special features
Large ray with a pointed snout; upperside grey-brown with small light blotches, underside white with a dark-rimmed rear edge to the fins. sourced

For anglers

Edibility
Rarely eaten verified
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
Can cause injury sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

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

More from the family Rajidae

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