Élasmobranches (requins et raies) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Pentanchidae (Deepwater catsharks)
Etymology: Apristurus: a-, Latin privative, i.e., without; pristis, from pristes (Gr.), sawyer (but here meaning saw); oura (Gr.), tail, referring to absence of saw-toothed crest of enlarged dermal denticles along upper edge of caudal fin as found in the closely related Pristiurus (=Galeus) (See ETYFish); canutus: Latin for hoary (gray or ash-colored), referring to its dark-gray coloration (with minute white spots underneath denticles) (See ETYFish).
Eponymy: Canutus is Latin for grey or ash-coloured and nothing to do with the tide-defying King Canute. (Ref. 128868), visit book page.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin bathydémersal; profondeur 500 - 1000 m (Ref. 55584). Deep-water; 18°N - 13°N
Western Central Atlantic: leeward islands off Antigua and Anguilla.
Taille / Poids / Âge
Maturité: Lm ? range ? - ? cm
Max length : 43.0 cm TL mâle / non sexé; (Ref. 244); 45.0 cm TL (female)
A deepwater bottom shark found on the insular slopes off the leeward islands. Oviparous (Ref. 50449). Poorly known. Not utilized at present.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Females spawn off leeward islands (Ref. 244).
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Température préférée (Réf.
123201): 6.6 - 9, mean 7.3 °C (based on 7 cells).
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00172 - 0.00698), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 3.9 ±0.6 se; based on size and trophs of closest relatives
Résilience (Réf.
120179): Très faible, temps minimum de doublement de population supérieur à 14 ans (Fec assumed to be <10).
Vulnérabilité de la pêche (Ref.
59153): Low to moderate vulnerability (35 of 100).
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