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Élasmobranches (requins et raies) (sharks and rays) > Carcharhiniformes (Ground sharks) > Triakidae (Houndsharks) > Galeorhininae
Etymology: Hemitriakis: hemi-, from hemisys (Gr.), half, being a genus that Herre believed was “most closely related” to Triakis. (See ETYFish); abdita: Latin for hidden, referring to the close external similarity of this sibling species to H. falcata. (See ETYFish).

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

marin bathydémersal; profondeur ? - 225 m (Ref. 26282). Deep-water

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Western Central Pacific: Coral Sea off Queensland, Australia and from New Caledonia.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 59.6 cm TL mâle / non sexé; (Ref. 31238); 56.1 cm TL (female); poids max. publié: 512.00 g (Ref. ); poids max. publié: 512.00 g

Holotype collected from a depth of 225 m (Ref. 26282). Ovoviviparous (Ref. 50449).

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Ovoviviparous, embryos feed solely on yolk (Ref. 50449).

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

Compagno, L.J.V. and V.H. Niem, 1998. Triakidae. Houndsharks, smoothhounds, topes. p. 1297-1304. In K.E. Carpenter and V.H. Niem (eds.) FAO identification guide for fishery purposes. The Living Marine Resources of the Western Central Pacific. FAO, Rome. (Ref. 13563)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Données manquantes (DD) ; Date assessed: 08 May 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00427 (0.00183 - 0.00992), b=3.04 (2.83 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 4.1 ±0.5 se; based on size and trophs of closest relatives

Résilience (Ref. 120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (44 of 100).

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Hemitriakis abdita Compagno & Stevens, 1993