Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino demersale. Temperate
Northwest Pacific: Japan and the Uwa Sea.
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.0 cm TL maschio/sesso non determinato; (Ref. 559)
Spine dorsali (totale) : 11 - 13; Raggi dorsali molli (totale) : 8 - 10; Spine anali: 1; Raggi anali molli: 8 - 9. Body elongate and compressed, covered with velvety prickles. Preoperculum with 5 blunt spines. Anterior part of dorsal fin higher (2nd and 3rd spines elongate). Body dark-brown with darker mottling (Ref. 559). Isthmus without fleshy pad (Ref. 39602).
Secretive on algae rocky reefs, usually seen at night (Ref. 48635).
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: Version 2024-2)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 24.7 - 29.3, mean 28.5 °C (based on 1631 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00215 - 0.01342), b=3.14 (2.92 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).