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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); japonicus: -icus (L.), belonging to: Japan, known only from the northwest Pacific off Chiba Prefecture, Honshu, Japan. (See ETYFish).

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

marin bathydémersal. Deep-water; 36°N - 34°N

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Northwest Pacific: off Chiba Prefecture, Honshu, Japan. Collected from the East China Sea (Ref. 559).

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 71.0 cm TL mâle / non sexé; (Ref. 244); 63.0 cm TL (female)

Biology little-known. Oviparous. Utilized for oil, human consumption and fishmeal or fish cakes.

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Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

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)

Préoccupation mineure (LC) ; Date assessed: 28 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

Pêcheries: intérêt commercial mineur

FAO - Publication: search | FishSource |

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Estimates based on models

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

Bayesian length-weight: a=0.00355 (0.00176 - 0.00714), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 4.0 ±0.4 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 <10).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (48 of 100).

Catégorie de prix (Ref. 80766): Low.

Apristurus japonicus Nakaya, 1975