Carcharhiniformes

>> Classification > Carcharhiniformes > Requin sombre

Carcharhinus obscurus - Dusky shark - Düsterer Hai - Tiburon arenero

Requin découvert par Le Sueur en 1818.


Morphologie

 


 Tout gris avec des nageoires légèrement foncées mais pas de blanc ni de noir.
   
   
   
   

 

Caractéristiques
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  Taille Jusqu'à 250 cm. Record 420 cm.
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  Masse Jusqu'à 346 kilos.
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  Nocturne/Diurne Diurrne.
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  Alimentation Sardines, anchois, poissons-chats, petits requins, raies, poissons-scies, calmars, serpents de mer.
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  Habitat Jusqu'à 400 m.
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  Distribution
Près des côtes des Caraïbes, du Brésil, de Guinée, de Madagascar et d'Australie, mer de Chine et de Californie.
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Maturité sexuelle

Atteinte vers 235 cm (6 ans) pour les deux sexes.
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Mode de reproduction

Vivipare.
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  Période de reproduction  
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  Espérance de vie 40 ans.
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  IUCN Liste rouge
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Distribution
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Reproduction
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  De 3 à 14 juvéniles mesurant 70 cm à la naissance après 12 mois de gestation.
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Dangers
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  Dangerosité

Potentiellement dangereux.

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  Degré
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  Exploitation humaine Captures fréquentes à la ligne et au filet. Utilisation pour l'alimentation.
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Particularités
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Classification
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  Règne Animalia
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  Embranchement Chordata
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  Classe Chondrichtyes
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  Sous-classe Elasmonranchii
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  Super-ordre Euselachii
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  Ordre Carcharhiniformes
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  Famille Carcharhinidae
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  Genre Carcharhinus
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  Espèce Carcharhinus obscurus
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Photos
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Vidéos
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