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Image de Requin Aiguille Antillais
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Requin Aiguille Antillais

Rhizoprionodon porosus (Poey 1861)

Life Cycle ( anglais )

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Distinct pairing with embrace (Ref. 205). Viviparous, placental (Ref. 50449).
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Susan M. Luna
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Trophic Strategy ( anglais )

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Common in bays and estuaries often entering rivers. Also found in offshore waters at depths of about 500 m, generally less than 100 m. Feeds mainly on small bony fishes, including wrasses, but also marine snails, squid and shrimp.
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Pascualita Sa-a
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Biology ( anglais )

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Common in bays and estuaries often entering rivers. Also found in offshore waters at depths of about 500 m, generally less than 100 m. Feeds mainly on small bony fishes, including wrasses, but also marine snails, squid and shrimp. Viviparous, with 2 to 6 young in a litter. Size at birth about 31 to 39 cm. Utilized salted or frozen for human consumption and processed into fish meal. Not dangerous (Ref. 9710).
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Importance ( anglais )

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fisheries: commercial
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Caribbean sharpnose shark ( anglais )

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The Caribbean sharpnose shark (Rhizoprionodon porosus) is a requiem shark, and part of the family Carcharhinidae.

Distribution and habitat

It is found in the tropical waters of the western Atlantic Ocean and the Caribbean, between latitudes 28° N and 40° S, from the surface to a depth of 500 m.

Description

The maximum reported size for the Caribbean sharpnose shark is 110 cm (43 in). The average adult size appears to be about 80–89 cm (31.5–35 in). Both sexes seem to reach maturity at about 65–70 cm (25.5–27.5 in) in length, and just over 2 years old. The life span is estimated to be about 8–10 years old.

Taxonomy

The species was once confused as being the same species as the Atlantic sharpnose shark - however difference in vertebra counts indicate that it is a separate species.

Breeding

Reproduction and litter size is similar to those of the Atlantic sharpnose shark.

References

  1. ^ Carlson, J., Charvet, P., Avalos, C., Briones Bell-lloch, A., Cardenosa, D., Espinoza, E., Morales-Saldaña, J.M., Naranjo-Elizondo, B., Pacoureau, N., Pilar Blasco, M., Pérez Jiménez, J.C., Schneider, E.V.C., Simpson, N.J. & Pollom, R. (2021). Rhizoprionodon porosus. The IUCN Red List of Threatened Species doi:10.2305/IUCN.UK.2021-1.RLTS.T61407A3103881.en

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Caribbean sharpnose shark: Brief Summary ( anglais )

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The Caribbean sharpnose shark (Rhizoprionodon porosus) is a requiem shark, and part of the family Carcharhinidae.

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