Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 200 - 500 m (Ref. 559). Deep-water
Northwest Pacific: known only from the Kochi Prefecture, Japan. Larvae known from seas around Ryukyu Islands and east of Taiwan (Ref. 10877).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 0; Dorsal soft rays (total): 96 - 102; Anal spines: 0; Anal soft rays: 76 - 82. Body deep ovate, 2.2 times in SL. Tip of isthmus below posterior margin of lower eye. Eye separated by a deep, broad and concave space. Interorbital in male broader than that in female, its width becoming broad with growth. Body color on ocular side dark-blue, anterior margin of head marked with 6 yellowish-white blotches.
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
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
Tools
Special reports
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 1.1 - 17, mean 11.8 °C (based on 29 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00408 - 0.02036), b=3.05 (2.87 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.6 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
