Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 75 - 91 m (Ref. 41496). Temperate
Northwest Pacific: Japan.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 8.0 cm TL male/unsexed; (Ref. 559)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 15 - 17; Dorsal soft rays (total): 7 - 9; Anal spines: 3; Anal soft rays: 4 - 6; Vertebrae: 27 - 29. Spines on lateral surface of the lachrymal present but none on the lateral surface of the first suborbital bone (Ref. 41496). Dorsal fin membranes not incised; second and third spines not especially elongate relative to the succeeding ones. Third infraorbital bone with a lump on lateral face. Minute stubby papillae covering premaxillary and anterior part of lower jaw (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 2024-1)
Threat to humans
Harmless
Human uses
Tools
Special reports
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 19.7 - 23.6, mean 21.9 °C (based on 6 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.3 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).
