Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; oceanodromous (Ref. 51243). Temperate
Northwest Pacific: from Japan to the southern part of the Korean Peninsula, and the Yellow and Pohai Sea coasts of China.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 8 - ? cm
Max length : 42.0 cm TL male/unsexed; (Ref. 40637); max. published weight: 1.6 kg (Ref. 40637)
soft rays: 6. This species is distinguished by the following characters: cranium armed dorsally with robust preocular, supraocular, postocular, and parietal spines; concave interorbital space; lower jaw scaleless and shorter than upper jaw; base of entire spinous portion of dorsal fin densely covered with minute scales; body with 3 dark brown saddles and lacking yellow or brownish-red markings on dorsum when fresh; dark spots on soft-rayed portion of dorsal and anal fins, and caudal fin (Ref. 93737).
Inhabits shallow rocky reefs (Ref. 42552). Viviparous (Ref. 34817).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kai, Y. and T. Nakabo, 2013. Taxonomic review of the Sebastes pachycephalus complex (Scorpaeniformes: Scorpaenidae). Zootaxa 3637(5):541-560. (Ref. 93737)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 10.5 - 21.1, mean 17 °C (based on 42 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00731 - 0.01803), b=3.04 (2.91 - 3.17), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.7 ±0.6 se; based on size and trophs of closest relatives
Generation time: 3.0 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.3).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (32 of 100) .