Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 79 - 261 m (Ref. 9790). Temperate
North Western Pacific: East and South China seas; southern Japan, Korea, Taiwan, Hainan Island and northern Philippines.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 35.0 cm TL male/unsexed; (Ref. 9790); common length : 30.0 cm TL male/unsexed; (Ref. 9790)
soft rays: 12. This species is distinguished by the following characters: 94-112 anteroventrally slanted oblique scale rows above lateral line; snout length 31.2-35.7% HL, markedly decreasing in length proportionally with growth; pectoral fin length 13.9-17.0% SL; pelvic fin length 19.5-23.1% SL; nasal bone without tubercles; dorsal surface of head and body dark brown, with small, round, dark-brown spots; and pelvic fin with small brown to black spots (Ref. 86254).
Taken by trawling at depths of 79 to 261m. Recorded by Galathea Station 539 as being dredged over gravel (Ref. 9790).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Imamura, H. and M.F. Gomon, 2010. Taxonomic revision of the genus Ratabulus (Teleostei: Platycephalidae), with descriptions of two new species from Australia. Memoirs of Museum Victoria 67:19-33. (Ref. 86254)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Fisheries: minor commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 9.7 - 26.4, mean 19.1 °C (based on 177 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00235 - 0.01120), b=3.05 (2.86 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.8 ±0.7 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (31 of 100) .