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Cartilaginous fish · Rajiformes · Rajidae

Blue Skate

Dipturus batis

Critically Endangered

At extremely high risk of imminent extinction in the wild.

Spotted something wrong?

The blue skate is the largest skate in the north-eastern Atlantic: it can exceed 2.8 metres in length. It was abundant throughout the North Sea and the European Atlantic and today has disappeared from most of its historical range. It is the classic case study of a common species driven to the brink of extinction by fishing.

Weight

20 kg – 100 kg

Size

1 m – 2.9 m

Life expectancy

50 years

Diet

Carnivore

Feeds mainly on other animals.

Activity

Nocturnal

Active mainly at night.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

Ocean
10countries1same family

Fun facts

  • It is the textbook case of a common species driven locally extinct by fishing: it was extremely abundant in the North Sea and the Irish Sea at the start of the twentieth century and today has disappeared from practically all of that area.
  • Its size condemned it: being the largest skate, it was retained in the nets from a very young age, long before reaching maturity at eleven, so the population stopped reproducing.
  • What was known as a single species turned out to be two, separated in 2010, which complicated the assessment of its status and revealed that both were worse off than had been thought.

Life cycle and biology

Skeleton type
Vertebrate - cartilaginous skeleton (fish)
Habitat and environment
Shelf and slope bottoms of the north-eastern Atlantic, between 100 and 600 metres
Sexual maturity
11 years
Gestation / incubation
5 months of egg incubation
Litter / clutch size
40

Sources consulted: Wikipedia (es): Dipturus batis

Where to find it

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Related species

Other species in the catalogue with the most in common with Blue Skate — same habitat, park, country, tags or family.

Same taxonomic family
Related to
Related to
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How to help

The blue skate is classified as critically endangered. Organisations such as the IUCN, WWF and the Wildlife Conservation Society work specifically on its conservation and that of its habitat; looking into their programmes is a good starting point if you want to get involved.

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Based on what we already know about blue skate.

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This page in other languages: Español · Deutsch · Français · Português · Italiano
See its range on the interactive map→
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CountriesDenmark
TagsCarnivore
Carnivore
Nocturnal
Solitary
Critically Endangered
Fish
Ocean

Europe9

Africa1

Denmark
France
Iceland
Ireland
Morocco
Norway
Denmark
France
Iceland
Ireland
Norway
Portugal
Spain
Sweden
United Kingdom
Morocco