Elasmobranchi (squali e razze) (sharks and rays) >
Squaliformes (Sleeper and dogfish sharks) >
Somniosidae (Sleeper sharks)
Etymology: Centroselachus: centr[um] (L.), prickle or sharp point, referring to spines on both dorsal fins; selachos (Gr.), a cartilaginous fish (i.e., shark or ray) (See ETYFish); crepidater: crepida (L.), low shoe (e.g., slipper); ater (L.), black, transliteration of Portuguese vernacular sapata preta, black shoe, allusion not explained, possibly referring to superficial resemblance to a black velvet slipper [see also Deania calceus, Centrophoridae] (See ETYFish).
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino batidemersale; distribuzione batimetrica 230 - 1500 m (Ref. 26346). Deep-water; 64°N - 57°S, 77°W - 159°W
Eastern Atlantic: Iceland, Faeroe Islands along Atlantic slope to Portugal, Senegal, Madeira, Gabon to Democratic Republic of the Congo, Namibia (Ref. 247). Indian Ocean: Aldabra and the Travancore coast of India. Western Pacific: New South Wales, Australia and New Zealand. Southeast Pacific: northern Chile.
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm 75.4, range 82 - ? cm
Max length : 130 cm TL maschio/sesso non determinato; (Ref. 6577); Età massima riportata: 54 anni (Ref. 57506)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 2; Spine anali: 0. Black or blackish brown in color, dorsal fins with very small fin spines, very long snout, greatly elongated labial furrows that nearly encircle mouth, lanceolate upper teeth and bladelike lower teeth with moderately long, oblique cusps, fairly slender body that does not taper abruptly from pectoral region, moderately large lateral trunk denticles with partly smooth, oval, cuspidate crowns in adults and subadults (Ref. 247).
Body shape (shape guide): elongated.
A fairly common species found on continental and insular slopes (Ref. 6871), on or near the bottom (Ref. 5578). Feeds mainly on fish and cephalopods (Ref. 6871). Ovoviviparous (Ref. 205), with 4-8 young in a litter (Ref. 6871), born at 28-35 cm (Ref. 26346). The flesh is high in mercury; utilized as fishmeal and source of squalene (Ref. 6871).
Ovoviviparous, with 4-8 young in a litter (Ref. 6871). Born at 28-35 cm (Ref. 26346). Distinct pairing with embrace (Ref. 205).
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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Poisonous to eat (Ref. 6871)
Usi umani
Pesca: scarso interesse commerciale
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
a=0.00309 (0.00246 - 0.00388), b=3.10 (3.03 - 3.17), in cm total length, based on LWR estimates for this species (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
4.2 ±0.4 se; based on diet studies. |
Resilienza (Fonte Biblio. 120179) |
Molto basso, tempo minimo di raddoppiamento della popolazione più di 14 anni (Fec=4-8, tmax=54, tm=9-15). |
Vulnerabilità della pesca (Ref. 59153) |
Very high vulnerability (78 of 100). 🛈 |
Vulnerabilità climatica (Ref. 125649) |
Moderate vulnerability (38 of 100). 🛈 |
Categoria di prezzo (Ref. 80766) |
High.
|
Nutrienti (Ref. 124155) |
Calcium = 5.64 [1.10, 30.50] mg/100g; Iron = 0.287 [0.069, 0.959] mg/100g; Protein = 20.1 [17.2, 22.3] %; Omega3 = 0.277 [0.101, 0.885] g/100g; Selenium = 18.1 [5.4, 54.3] μg/100g; VitaminA = 12.2 [2.5, 62.2] μg/100g; Zinc = 0.29 [0.14, 0.57] mg/100g (wet weight); |