Rhizoprionodon porosus (Poey, 1861)

Caribbean sharpnose shark
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Rhizoprionodon porosus   AquaMaps   Data sources: GBIF OBIS
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Image of Rhizoprionodon porosus (Caribbean sharpnose shark)
Rhizoprionodon porosus
Male picture by Monzini, J.

Classification / Names Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (hajar och rockor) (sharks and rays) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
Etymology: Rhizoprionodon: Greek, rhiza = root + Greek, prion = saw + Greek, odous = teeth (Ref. 45335).  More on author: Poey.

Environment: milieu / climate zone / depth range / distribution range Ekologi

; marina; sötvatten; brackvatten revassocierade; djupintervall ? - 500 m (Ref. 244), usually ? - 100 m (Ref. 244).   Tropical; 28°N - 40°S, 88°W - 32°W (Ref. 55194)

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Western Atlantic: Caribbean, including the Bahamas, south to Uruguay. The separation of this species from Rhizoprionodon terraenovae whether as a distinct species or a representative of a southern subspecies is still uncertain and pending until detailed studies are commenced.

Length at first maturity / Size / Vikt / Age

Maturity: Lm 65.0, range 80 - ? cm
Max length : 113 cm TL hane/ej könsbestämd; (Ref. 111958); common length : 75.0 cm TL hane/ej könsbestämd; (Ref. 5217); publicerad maxvikt: 7.5 kg (Ref. 111958)

Biologi     Ordlista (t.ex. epibenthic)

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).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Distinct pairing with embrace (Ref. 205). Viviparous, placental (Ref. 50449).

Main reference Upload your references | referenser | Koordinator : Compagno, Leonard J.V. | Medarbetare

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)

IUCN Red List Status (Ref. 119314)

  Least Concern (LC) ; Date assessed: 31 January 2006

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fiskeri: kommersiell
FAO(Publication : search) | FIRMS (Stock assessments) | FishSource | Sea Around Us

Ytterligare information

Länder
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synonymer
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Ägg
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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 17.5 - 27.1, mean 24.2 (based on 80 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00214 (0.00141 - 0.00324), b=3.10 (2.98 - 3.22), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  4.0   ±0.2 se; Based on diet studies.
Resiliens (Ref. 69278):  Mycket låg, lägsta populationsfördubblingstid mer än 14 år (Fec=2; K=0.3-0.42).
Vulnerability (Ref. 59153):  Moderate to high vulnerability (51 of 100) .
Price category (Ref. 80766):   Medium.