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Raja clavata Thornback ray

Raja clavata is commonly referred to as Thornback ray. Difficulty in the aquarium: Not suitable for home aquaria!. Toxicity: Toxic hazard unknown.


Profilbild Urheber Anne Frijsinger & Mat Vestjens, Holland

© Anne Frijsinger & Mat Vestjens, Holland, Bild aus Schottland


Courtesy of the author Anne Frijsinger & Mat Vestjens, Holland Anne Frijsinger & Mat Vestjens, Holland. Please visit www.natuurlijkmooi.net for more information.

Uploaded by AndiV.

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lexID:
5060 
AphiaID:
105883 
Scientific:
Raja clavata 
German:
Stechrochen, Nagelrochen, Stachelrochen 
English:
Thornback Ray 
Category:
Rokker 
Family tree:
Animalia (Kingdom) > Chordata (Phylum) > Elasmobranchii (Class) > Rajiformes (Order) > Rajidae (Family) > Raja (Genus) > clavata (Species) 
Initial determination:
Linnaeus, 1758 
Occurrence:
Ghana, Straße von Gibraltar, Russland, West Sahara, Sudan, the Baltic Sea, the Black Sea, the North Sea, Algeria, Angola, Cameroon, Congo, East-Atlantic Ocean, Egypt, Equatorial Guinea, European Coasts, Germany, Iceland, Israel, Madagascar, Madeira, Morocco, Namibia, Nigeria, Northern Africa, Portugal, São Tomé e Principé, Scandinavia, Senegal, Sierra Leone, Spain, the British Isles, the Canary Islands, the Faroe Islands, the Isle of Man, the Ivory Coast, the Mediterranean Sea, Togo 
Sea depth:
5 - 1020 Meter 
Size:
33.46" - 54.72" (85cm - 139cm) 
Temperature:
°F - 82.4 °F (°C - 28°C) 
Food:
Amphipods, Clams, Crabs, Edible crab, Fish (little fishes), Isopods, Krill, Lobster, Mantis shrimps, Mysis, Rock shrimps, Schrimps, Sepia, Snails, Worms, Zoobenthos 
Difficulty:
Not suitable for home aquaria! 
Offspring:
Not available as offspring 
Toxicity:
Toxic hazard unknown 
CITES:
Not evaluated 
Red List:
Near threatened (NT) 
Related species at
Catalog of Life
:
 
Author:
Publisher:
Meerwasser-Lexikon.de
Created:
Last edit:
2020-07-05 22:20:50 

Info

Linnaeus, 1758

Special thanks for the fotos to Anders Salesjö from Sweden.

IUCN Red List status: near threatened

Distribution:
Eastern Atlantic: Iceland, Norway, North Sea and the western Baltic southward to Morocco and Namibia, including the Mediterranean and the Black Sea.
Although reported from southern Africa, but its status in the area is uncertain.

Biology:
Inhabits shelf and upper slope waters.
Depth range from 10-300 m, and from 300-577 m in the eastern Ionian Sea.
Most common in coastal waters between 10-60 m depth.
Tolerates low salinities. Found on mud, sand and gravel bottoms, rarely on rougher bottoms. Nocturnal species. Feeds on all kinds of bottom animals, preferably crustaceans.
Undertakes migrations with mean distances of 54-117 km per month; shows a clear annual migration cycle, moves from deeper offshore waters (10-30 m) in autumn and winter to shallower areas (

External links

  1. FishBase (multi). Abgerufen am 07.08.2020.
  2. IUCN Red List of Threatened Species (multi). Abgerufen am 07.08.2020.
  3. Wattwanderer entdeckt Nagelrochen, der dort als ausgerottet galt (de). Abgerufen am 07.08.2020.
  4. World Register of Marine Species (WoRMS) (en). Abgerufen am 07.08.2020.

Pictures

Commonly

© Anne Frijsinger & Mat Vestjens, Holland, Bild aus Schottland
1
copyright Johnny Jensen Dänemark
1
copyright Anders Salesjö, Schweden
1
copyright Anders Salesjö, Schweden
1

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