Elasmobranchii (tubarões e raias) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Pentanchidae (Deepwater catsharks)
Etymology: Pentanchus: penta, from pente (Gr.), five; -anchus, perhaps an abridgement of branchos (Gr.), gill, referring to five pairs of branchial apertures (gill slits), unique among the group of sharks (hexanchoid) in which the authors erroneously believed this shark belonged. (See ETYFish); profundicolus: profundus (L.), deep; -colus (L.), dwelling in, referring to deepwater habitat (holotype taken at 1070 m). (See ETYFish).
More on authors: Smith & Radcliffe.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marinhas batidemersal; intervalo de profundidade 673 - 1069 m (Ref. 47206). Deep-water; 12°N - 8°N
Western Central Pacific: known from the holotype and only specimen taken from the Mindanao Sea, Philippines. Upon comparing, the holotypes of Apristurus herklotsi and this species are conspecific, thus, suggesting that Pentanchus is a senior synonym of Apristurus. But due to lack of verifiable specimens, herklotsi is tentatively retained in Apristurus.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 51.0 cm TL macho/indeterminado; (Ref. 244)
Espinhos dorsais (total) : 0; Espinhos anais: 0. Only shark with 5 pairs of gill slits and one dorsal fin (Ref. 244). Head broadly flattened and spatulate, snout elongated and usually longer than mouth width. Labial furrows very long, uppers reaching upper symphysis (Ref. 244). No color pattern, uniformly dark brown (Ref. 244). Caudal fin with a distinct subterminal notch.
A poorly known deep-water bottom-dwelling shark inhabiting insular slopes (Ref. 11146). Possibly oviparous (Ref. 50449).
Ciclo de vida ou comportamento de acasalamento
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Nakaya, K. and B. Séret, 2000. Re-description and taxonomy of Pentachus profundicolus Smith & Radcliffe, based on a second specimen from the Philippines (Chondrichthyes, Carcharhiniformes, Scyliorhinidae). Ichthyol. Res. 47(4):373-378. (Ref. 47206)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Pescarias: sem interesse
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 1.0000 [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).
Nível Trófico (Ref.
69278): 4.1 ±0.6 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (40 of 100).
