Scoliodon macrorhynchos

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Scoliodon macrorhynchos (Bleeker, 1852)

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Scoliodon macrorhynchos
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drawing shows typical fish in this Family.

Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Élasmobranches (requins et raies) (sharks and rays) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
Etymology: Scoliodon: Greek, skolex = worm + Greek, odous = teeth (Ref. 45335).

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

; marin dmersal.   Tropical

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Western Central Pacific: W Indonesia, Malaysia, Gulf of Thailand, Singapore, Borneo, Philippines, China, Hong Kong, Taiwan and Japan; exceptions, E Indonesia, New Guinea, northern Australia, and remainder of the Oceania region.

Taille / Poids / Âge

Maturity: Lm ?  range ? - 39.7 cm
Max length : 63.6 cm TL mâle / non sexé; (Ref. 84283); 70.7 cm TL (female)

Description synthétique Morphologie | Morphométrie

Vertèbres: 149 - 171. This small carcharhinid species is distinguished by the following set of characters: snout long and extremely flattened; slender body and tail; smooth-edged teeth with slender, strongly oblique, blade-like cusps and no cusplets; anterior teeth strongly sexually dimorphic, for adult males greatly elongate and flexuous; total tooth row counts 25-28/23-28 rows or 48-56 total rows; second dorsal-fin origin well posterior of anal-fin origin, about opposite posterior third of anal-fin base; second dorsal-fin origin to anal fin origin 6.0-9.1% TL, 1.3-2.5 times second dorsal-fin base; interdorsal space 17.9-22.2% TL; small pelvic fins, anterior margins 41-56% of pectoral anterior margin; first dorsal fin small, broadly triangular, origin behind pectoral fin free rear tips, free rear tip over posterior half of pelvic fin bases, length 12.9-15.5% TL, inner margin 2.1-3.0 in base; second dorsal fin very small, base 2.0-3.5 times height; height 18-27% of first dorsal-fin height; anal fin large, length 11.1-14.1% TL, height 1.7-2.5 times second dorsal-fin height, base 1.9-3.1 times second dorsal-fin base; total vertebral count 149-171, monospondylous precaudal count 44-50, diplospondylous precaudal count 53-64, diplospondylous caudal count 49-59, precaudal count 98-114; colour greenish-bronze dorsally, off white ventrally when fresh; preserved specimens are slate-grey dorsally whitish ventrally with waterline clearly demarcated along head, more diffuse along body, no distinct black spots on fins (Ref. 84283).

Biologie     Glossaire (ex. epibenthic)

Occurs in shallow, inshore waters, most abundant near large freshwater outflows, e.g. Pearl River estuary (Hong Kong) and the large Borneo drainage systems (Ref. 84283).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur : Compagno, Leonard J.V. | Collaborateurs

White, W.T., P.R. Last and G.J.P. Naylor, 2010. Scoliodon macrorhynchos (Bleeker, 1852), a second species of spadenose shark from the Western Pacific (Carcharhiniformes: Carcharhinidae). pp. 61-76. In P.R. Last, W.T. White, and J.J. Pogonoski (eds). Descriptions of new sharks and rays from Borneo. CSIRO Marine and Atmospheric Research Paper no. 32. (Ref. 84283)

Statut dans la liste rouge de l'IUCN (Ref. 120744)

  Non évalué 

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

FAO(Publication : search) | FishSource |

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Sources Internet

Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(génôme, nucléotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Bases de données nationales | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Arbre de Vie | Wikipedia(aller à, chercher) | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  3.9   ±0.5 se; Based on size and trophs of closest relatives
Résilience (Ref. 120179):  Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).
Vulnérabilité (Ref. 59153):  Low to moderate vulnerability (34 of 100) .