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Élasmobranches (requins et raies) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Dipturus: Greek, di = two + Greek, pteryx = fin (Ref. 45335).

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

marin démersal; profondeur 15 - 1310 m (Ref. 26346). Deep-water; 33°S - 43°S, 166°E - 178°W (Ref. 114953)

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

Southwest Pacific: endemic to New Zealand.

Length at first maturity / Taille / Poids / Âge

Maturity: L_m 112.0 range ? - ? cm
Max length : 240 cm TL mâle / non sexé; (Ref. 26346); common length : 80.0 cm TL mâle / non sexé; (Ref. 9258); âge max. reporté: 24 années (Ref. 47618)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Grey with scattered charcoal blotches dorsally, greyish-white ventrally (Ref. 26346).

Occurs in coastal waters, continental shelf and upper slope (Ref. 26346). Usually found in deeper waters to 200 m (Ref. 9258). Mainly feeds on benthic decapods and bony fishes (Ref. 114953). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Males reaches maturity at ca. 150 cm TL. This species is said to be long lived and slow growing (Ref. 114953).

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

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Young hatch at about 20-23 cm (Ref. 26346).

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: Version 2024-1)

Préoccupation mineure (LC) ; Date assessed: 21 June 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

Pêcheries: commercial

FAO - Publication: search | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 123201): 6.4 - 12.9, mean 8.2 °C (based on 173 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00224 (0.00133 - 0.00376), b=3.24 (3.10 - 3.38), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 4.1 ±0.6 se; based on size and trophs of closest relatives

Generation time: 11.6 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.

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

Fishing Vulnerability (Ref. 59153): Very high vulnerability (80 of 100).

Catégorie de prix (Ref. 80766): Medium.

Dipturus innominatus (Garrick & Paul, 1974)