Elasmobranchi (squali e razze) (sharks and rays)
(Bramble, sleeper and dogfish sharks) > Etmopteridae
Etymology: Etmopterus: Greek, ethmos, -ou = sieve or ethmoides bone + Greek, pteron = wing, fin (Ref. 45335). More on author: Lowe.
Environment: milieu / climate zone / depth range / distribution range
; marino batidemersale; oceanodromo (Ref. 51243); distribuzione batimetrica 0 - 1070 m (Ref. 26346), usually 400 - 700 m (Ref. 36731). Deep-water; 42°N - 48°S, 98°W - 105°W
Western Atlantic: northern Gulf of Mexico; southern Brazil to Argentina (Ref. 247, 6871). One specimen collected off the Guianas (Ref. 13608). Eastern Atlantic: Portugal to Namibia. Also occurs in oceanic waters between Argentina and South Africa. Western Indian Ocean: South Africa, and Arabian Sea (Ref.85183). Western Pacific: Australia (Ref. 6871), New Zealand (Ref. 26346), and Japan. Southeast Pacific: Amber Seamount, Nasca and Sala-y-Gomez.
Length at first maturity / Size / Peso / Age
Maturity: Lm ?, range 38 - 47 cm
Max length : 50.0 cm TL maschio/sesso non determinato; (Ref. 36731)
Spine dorsali (totale): 2; Raggi dorsali molli (totale): 0; Spine anali 0; Raggi anali molli: 0. Bladelike unicuspidate teeth in lower jaw and teeth with cusps and cusplets in upper jaw, relatively short snout, low, truncated denticles (Ref. 247). Blackish brown dorsally, with an obscure broad black mark running above, in front and behind pelvic fins (Ref. 247).
Found on or near the bottom of continental and insular slopes at depths from 275 to 1,000 m (possibly to 2,000 m); also oceanic in the south Atlantic from the surface to 710 m (Ref. 6871), possibly as deep as 1998 m (Ref. 58302). Feeds on fish eggs, lanternfish, squid, and other small dogfish (Ref. 5578). Ovoviviparous (Ref. 205). Utilized dried salted for human consumption and for fishmeal (Ref. 247).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Ovoviviparous (Ref. 247). 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)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Pesca: scarso interesse commerciale
BibliografiaAcquacolturaProfilo di acquacolturaVarietàGeneticaFrequenze allelicheEreditarietàMalattieElaborazioneMass conversion
CollaboratoriImmaginiStamps, Coins Misc.SuoniCiguateraVelocitàModalità di nuotoArea branchialeOtolithsCervelliVista
Estimates based on models
Preferred temperature (Ref. 115969
): 5.3 - 13.6, mean 8.9 (based on 409 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00219 - 0.00575), b=3.05 (2.91 - 3.19), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 4.2 ±0.4 se; Based on diet studies.
Resilienza (Ref. 120179
): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Fec assumed to be <100).
Vulnerability (Ref. 59153
): Moderate vulnerability (43 of 100) .