Classification / Names
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Perciformes/Cottoidei (Sculpins) >
Cottidae (Sculpins)
Etymology: Astrocottus: Greek, astra = ray + Greek, kottos = a fish (Ref. 45335); regulus: Name from Latin 'regulus' or regular, a common species collected frequently in northern Japan. It also is the name of the alpha star of the constellation Leo, which is connected with the genus name Astrocottus, meaning 'constellation sculpin'..
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin démersal; profondeur 10 - 55 m (Ref. 76844). Temperate
Northwest Pacific: Japan.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 4.2 cm SL mâle / non sexé; (Ref. 76844)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 9 - 11; Rayons mous dorsaux (Total) : 13 - 15; Épines anales: 0; Rayons mous anaux: 13 - 14; Vertèbres: 32 - 34. This species possess the following characters: small head, its length 31-33% SL, depth 13-17% SL; flat and narrow interorbital space, its width 5.6-7.2% HL; basal length of anal fin 30-34% SL; scales on pectoral-fin rays and ventral surface of head and trunk absent; no nuchal cirrus; some scales below lateral line have filamentous cirri; D1 IX-XI (mode X); D2 13-15 (mode 14); A 13-14 (mode 14); lateral-line scales 31-33 (mode 32); vertebrae 12 + 20-22 (mode 12 + 21)=32- 34 (mode 33) (Ref. 76844).
Occurs on sandy and/or cobble bottom (Ref. 76844).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Tsuruoka, O., S. Maruyama and M. Yabe, 2008. Revision of the Cottid Genus Astrocottus Bolin (Perciformes: Cattoidei), with the description of a new species from Northern Japan. Bull. Natl. Mus. Sci. Ser. A. Suppl. 2:25-37. (Ref. 76844)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00300 - 0.01523), b=3.17 (2.98 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
