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Alepocephaliformes (Slickheads and tubeshoulders.) >
Alepocephalidae (Slickheads)
Etymology: Narcetes: Greek, narke = numbness (Ref. 45335).
Eponymy: Dr Toshiji Kamohara (1901–1972) was an ichthyologist who graduated from Tokyo Imperial University (1926). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino batipelagico; distribuzione batimetrica 892 - 1000 m (Ref. 58018). Subtropical
Western Pacific: Japan and the Philippines.
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 34.0 cm SL maschio/sesso non determinato; (Ref. 559)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 0; Raggi dorsali molli (totale) : 18 - 20; Spine anali: 0; Raggi anali molli: 15 - 17. Teeth in 2 or 3 irregular series or in bands on premaxillary and dentary. Origin of anal fin more posterior than anterior 1/3 of body fin base (usually below the 12 to 15th dorsal rays). Body rather high and compressed. Branchiostegal rays 8. Attains 34 cm SL.
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Fonti Internet
Estimates based on models
Preferred temperature (Ref.
123201): 3.4 - 6.2, mean 5 °C (based on 52 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00163 - 0.00737), b=3.19 (3.00 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resilienza (Ref.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (31 of 100).