Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic. Temperate
Northwest Pacific: Japan and the Kyushu-Palau Ridge (Ref. 559), northeastern Taiwan (Ref. 54421), and the Philippine Sea (Ref. 9949).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 38.2 cm TL male/unsexed; (Ref. 54421)
Morphology | Morphometrics
Bones of head rather firm and not cavernous. Snout low, not blunt at tip, decidedly shorter than diameter of orbit and not protruding beyond mouth; width at frontal margin of orbit slightly wider than 1/2 length of snout. Mouth large, terminal, and lateral; teeth in villiform bands on both jaws. No teeth on vomer or palatine. Barbel filamentous, about as long as, or a little shorter than length of head. Gill opening wide, extending to a vertical through center of pupil. Scales cycloid. Mandibular ramus provided with but 1 scale row. Color pale. Jaws white. All fins dusky; dorsal and anal fins darkening toward edge (Ref. 54421).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00363 (0.00135 - 0.00976), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.1 ±0.1 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153
): Low to moderate vulnerability (28 of 100).