Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 77 - 254 m (Ref. 41496). Temperate
Northwest Pacific: Japan.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 6.0 cm TL male/unsexed; (Ref. 559)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 14 - 16; Dorsal soft rays (total): 7 - 9; Anal spines: 3; Anal soft rays: 4 - 6; Vertebrae: 26 - 29. No spines on the lateral surface of the lachrymal nor on the lateral surface of the first suborbital bone (Ref. 41496). Dorsal fin membranes deeply incised; second and third dorsal spines no elongated relative to succeeding spines. Origin of dorsal fin at or behind level of rear margin of eye (Ref. 35987).
Inhabits continental edges.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | 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: Version 2024-2)
Threat to humans
Harmless
Human uses
Tools
Special reports
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 9.6 - 21, mean 18.5 °C (based on 105 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01905 (0.00776 - 0.04678), b=3.03 (2.82 - 3.24), 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
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
