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Perciformes/Zoarcoidei (Eelpouts and pricklebacks) >
Bathymasteridae (Ronquils)
Etymology: Bathymaster: Greek, bathys = deep + Greek, master, -eros = somebody that research (Ref. 45335).
Eponymy: Professor Dr Konstantin Michailovich Derjugin (1878–1938) was an oceanographer and marine zoologist at Leningrad State University, and manager of the Oceanic Division of the State Hydrological Institute in Leningrad. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / profondeur / distribution range
Écologie
marin démersal; profondeur 0 - 65 m (Ref. 50550). Temperate
Northwest Pacific: Kuril Islands and Tartar Strait to Peter the Great Bay, Japan Sea.
Length at first maturity / Taille / Poids / Âge
Maturité: Lm 17.8  range ? - ? cm
Max length : 18.0 cm TL mâle / non sexé; (Ref. 56557)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 2; Rayons mous dorsaux (Total) : 39 - 40; Épines anales: 1 - 2; Rayons mous anaux: 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.
Body shape (shape guide): elongated; Cross section: circular.
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-1)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Preferred temperature (Réf.
123201): 3 - 18.5, mean 10.3 °C (based on 66 cells).
Phylogenetic diversity index (Réf.
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).
Niveau trophique (Réf.
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.
Résilience (Réf.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (tmax=8+; Fec = 19,720).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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