Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino demersale. Temperate
Northwest Pacific: known only from Hachijojima, Japan.
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.0 cm TL maschio/sesso non determinato; (Ref. 559)
Spine dorsali (totale) : 12; Raggi dorsali molli (totale) : 9; Spine anali: 2; Raggi anali molli: 7; Vertebre: 26. Body compressed and somewhat sparsely covered with rather soft prickles. Preoperculum with 5 spines; uppermost longest with a cutting end; lowest rudimentary and embedded (Ref. 559). Snout in lateral profile concave. Streaks on body few, if any (Ref. 39602).
Life cycle and mating behavior
Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | 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
Strumenti
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), 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
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).