Carcharhiniformes

>> Classification > Carcharhiniformes > Requin aiguille des Antilles

Rhizoprionodon porosus - Carribean sharpnose shark

Requin découvert par Poey en 1861.


Morphologie

 

Gros yeux et petites nageoires ;

 

 

Petit requin grégaire, capable de tolérer de grandes variations de salinité de l'eau et ,
par conséquent, fréquent dans les estuaires et les embouchures des fleuves.

   
   
   

 

Caractéristiques
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  Taille Jusqu'à 110 cm.
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  Masse  
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  Nocturne/Diurne  
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  Alimentation Crevettes, céphalopodes, gastéropodes.
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  Habitat Semi-benthique, il évolue en eaux tropicales sur les fonds sableux jusqu'à 500 m.
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  Distribution
Eaux côtières chaudes de l'Atlantique ouest, des Bermudes au rio de la Plata.
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Maturité sexuelle

Atteinte à 70 cm 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  
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  IUCN Liste rouge
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Distribution
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Reproduction
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  De 2 à 6 juvéniles mesurant 35 cm à la naissance après 11 mois de gestation.
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Dangers
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  Dangerosité

Aucune.

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  Degré
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  Exploitation humaine Captures côtières fréquentes. Utilisation de sa chair dans 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 Rhizoprionodon
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  Espèce Rhizoprionodon porosus
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Photos
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Vidéos
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