Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino batipelagico; distribuzione batimetrica 298 - 4938 m (Ref. 58302), usually 400 - 2400 m (Ref. 58302). Deep-water; 64°N - 20°N, 105°E - 130°W
North Pacific: temperate and subtropical, from southern Japan to Baja California, from 21°N and into the Bering Sea.
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.2 cm SL maschio/sesso non determinato; (Ref. 559)
Spine dorsali (totale): 0; Raggi dorsali molli (totale): 12-15; Spine anali 0; Raggi anali molli: 17 - 20; Vertebre: 31 - 33. Body dark-brown or black; margin of scale pockets especially dark; area immediately anterior to anal origin densely pigmented and not transparent; peritoneum black, ending above area between 3rd and 4th VAV, usually invisible from the outside (Ref. 559). Gill lamellae free and reduced (Ref. 559).
Meso- to bathypelagic (Ref. 58302). Inhabits deep water and is only captured with special equipment. Lipid content is 4.0 % in fresh body weight and wax ester is 58.4 % in total lipid (Ref. 9193). Protandrous hermaphrodite, oviparous with planktonic eggs and larvae (Ref. 35800).
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)
Threat to humans
Harmless
Human uses
Informazioni ulteriori
BibliografiaAcquacolturaProfilo di acquacolturaVarietàGeneticaElectrophoresesEreditarietàMalattieElaborazioneNutrientsMass conversion
CollaboratoriImmaginiStamps, Coins Misc.SuoniCiguateraVelocitàModalità di nuotoArea branchialeOtolithsCervelliVista
Strumenti
Special reports
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Fonti Internet
Estimates based on models
Preferred temperature (Ref.
123201): 1.7 - 7.3, mean 2.4 °C (based on 579 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00171 - 0.00885), b=2.99 (2.79 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
Resilienza (Ref.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).