Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

Élasmobranches (requins et raies) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Amblyraja: Greek, amblys = darkness + Latin, raja, -ae = ray (Raja sp.) (Ref. 45335).

Issue
Retained in Amblyraja but generic placement is questionable (Last, unpubl.) and needs further investigation (Ref. 118749).

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

marin bathydémersal; profondeur ? - 1500 m (Ref. 26282). Deep-water; 18°N - 20°N, 68°E - 71°E (Ref. 114953)

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

Western Indian Ocean: known from the type locality, Arabian Sea off the Baluchistan coast.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 60.0 cm TL mâle / non sexé; (Ref. 114953)

Holotype taken from a depth of about 1,500 m (Ref. 26282). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).

Référence principale Upload your references | Références | Coordinateur : McEachran, John | Collaborateurs

McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)

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

Données manquantes (DD) ; Date assessed: 09 February 2017

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 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00302 (0.00141 - 0.00645), b=3.24 (3.07 - 3.41), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 4.0 ±0.2 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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Vers le haut

Amblyraja reversa (Lloyd, 1906)