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Élasmobranches (requins et raies) (sharks and rays) > Carcharhiniformes (Ground sharks) > Pentanchidae (Deepwater catsharks)
Etymology: Bythaelurus: bythos (Gr.), depths of the sea, referring to its deepwater habitat; ailouros (Gr.), cat, probably an allusion to the vernacular “catshark,” so named for its cat-like eyes (See ETYFish); immaculatus: im-, from in (L.), not; maculatus (L.), spotted, referring to its lack of markings (See ETYFish).

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

marin bathydémersal; profondeur 534 - 1020 m. Deep-water; 20°N - 17°N

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

Northwest Pacific: only known from the South China Sea at about 380 to 400 km east of Hainan Island Occurrence in the Western Central Pacific uncertain, marginal in the South China Sea (Ref. 11146). For unavailability of material to be examined, the generic placement and recognition of this species is provisional.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 71.0 cm TL mâle / non sexé; (Ref. 244); 76.0 cm TL (female)

Found on the continental slope. Just recently described. Not utilized at present.

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

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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 2024-2)

Préoccupation mineure (LC) ; Date assessed: 27 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

Pêcheries: sans intérêt

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00355 (0.00175 - 0.00721), 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 (Ref. 69278): 4.5 ±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 to high vulnerability (50 of 100).

Bythaelurus immaculatus (Chu & Meng, 1982)