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Alepocephaliformes (Slickheads and tubeshoulders.) >
Alepocephalidae (Slickheads)
Eponymy: Shozaburo Watasé (1862–1929) was a biologist who became (1901) Professor of Zoology at the Imperial University of Tokyo, his alma mater. [...] (Ref. 128868), visit book page.
More on author: Tanaka.
Environment: milieu / climate zone / Tiefenbereich / distribution range
Ökologie
seewasser bathypelagisch; tiefenbereich 500 - 1300 m (Ref. 559). Deep-water
Western Pacific: Sagami Bay in Japan, East China Sea and the Philippines.
Size / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 22.0 cm SL Männchen/unbestimmt; (Ref. 559)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Rückenflossenstacheln (insgesamt) : 0; Rückenflossenweichstrahlen (insgesamt) : 18 - 21; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 17 - 19. Head and body compressed. Eye large, circular. Snout strongly curved, nearly vertical at the tip. Gill rakers well-developed. Scales absent from the body except fro modified ring-like lateral line scales.
Body shape (shape guide): elongated; Cross section: compressed.
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
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 Rote Liste Status (Ref. 130435: Version 2025-1)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
Zusatzinformationen
Download XML
Internet Quellen
Estimates based on models
Preferred temperature (Ref.
123201): 4.8 - 8.4, mean 6.4 °C (based on 292 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5010 [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): 3.4 ±0.5 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).
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