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Alepocephaliformes (Slickheads and tubeshoulders.) >
Alepocephalidae (Slickheads)
Etymology: Narcetes: Greek, narke = numbness (Ref. 45335); shonanmaruae: Named for the ship ‘Shonan maru’, which collected the type materials; noun in apposition..
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin bathypélagique; profondeur 2171 - 2572 m (Ref. 123515). Deep-water
Northwest Pacific: Japan.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 121.0 cm SL (female); poids max. publié: 0.00 g
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 14; Épines anales: 0; Rayons mous anaux: 11 - 12. This species is distinguished by the following characters: anal fn is entirely behind the dorsal fin; multiserial teeth on premaxillary, maxillary, and dentary; predorsal scale rows > 70; longitudinal scale rows > 110; dorsal to lateral line scale row > 15; anal to lateral line scale rows > 17; branchiostegal rays 7; dorsal-fn rays < 15; precaudal vertebrae < 30; epurals 2; the lengths of head, snout, upper and lower jaws, orbit diameter, dorsal and anal fn bases are relatively short against standard length (Ref. 123515).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Fujiwara, Y., M. Kawato, J.Y. Poulsen, H. Ida, Y. Chikaraishi, N. Ohkouchi, K. Oguri, S. Gotoh, G. Ozawa, S. Tanaka, M. Miya, T. Sado, K. Kimoto, T. Toyofuku and S. Tsuchida, 2021. Discovery of a colossal slickhead (Alepocephaliformes: Alepocephalidae): an active-swimming top predator in the deep waters of Suruga Bay, Japan. Scientific Reports 11[2490]:16p. (Ref. 123515)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00164 - 0.00733), b=3.19 (3.00 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Très faible, temps minimum de doublement de population supérieur à 14 ans (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (89 of 100).