Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; brackish; demersal; depth range 10 - 15 m (Ref. 76844). Temperate
Northwest Pacific: Japan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.0 cm SL male/unsexed; (Ref. 559)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 9; Dorsal soft rays (total): 12; Anal soft rays: 11 - 12; Vertebrae: 29 - 31. This species possess the following set of characters: slightly large head, its length 36-38% SL, depth 20-26% SL; flat interorbital space flat, relatively wide, its width 7.8-9.7% HL; basal length of anal fin 25-29% SL; pectoral-fin rays with small scales except the lowermost part; numerous small scales cover widely the ventral surface of head and trunk; no nuchal cirrus; scattered below lateral line are long filamentous cirri; D1 IX, D2 12; A 11-12 (mode 12); lateral-line scales 29-31 (mode 31); vertebrae 12 + 17-19 (mode 12 +18) = 29-31 (mode 30) (Ref. 76844).
Occurs on sandy and/or cobble bottoms (Ref. 76844).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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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).
Trophic level (Ref.
69278): 3.2 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).