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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 Ökologie

seewasser bathypelagisch; tiefenbereich 2171 - 2572 m (Ref. 123515). Deep-water

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Northwest Pacific: Japan.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 121.0 cm SL (female); max. veröff. Gewicht: 0.00 g

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 0; Rückenflossenweichstrahlen (insgesamt) : 14; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 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 Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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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)

IUCN Rote Liste Status (Ref. 130435: Version 2024-2)

Nicht untersucht

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = No PD50 data [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): 3.7 ±0.6 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (89 of 100).

Narcetes shonanmaruae Poulsen, Ida, Kawato & Fujiwara, 2021