Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina bottenlevande; djupintervall 0 - 65 m (Ref. 50550). Temperate
Northwest Pacific: Kuril Islands and Tartar Strait to Peter the Great Bay, Japan Sea.
Length at first maturity / Size / Vikt / Age
Maturity: Lm 17.8  range ? - ? cm
Max length : 18.0 cm TL hane/ej könsbestämd; (Ref. 56557)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 2; Mjukstrålar i ryggfenan (totalt) : 39 - 40; Taggstrålar i analfenan: 1 - 2; Mjukstrålar i analfenan: 29 - 31. Resemble B. leurolepis but easily distinguished by a distinct dark (blue when fresh) blotch on the operculum, and a smaller number of lateral line scales. Attains about 15 cm SL.
Inhabits rocky shore areas.
Pairing observed during breeding (Ref. 205).
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
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 3 - 18.5, mean 10.3 °C (based on 66 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5703 [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).
Trofisk nivå (Ref.
69278): 3.6 ±0.3 se; based on size and trophs of closest relatives
Generation time: 2.9 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (tmax=8+; Fec = 19,720).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).