Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Cottidae
Etymology: Radulinopsis: Latin, radula, radere = to scrape (1877) (Ref. 45335); taranetzi: Named after the late Anatoly Yakovlevich Taranetz, in recognition of the understanding of boreal fishes and especially cottoid classification (Ref. 45337).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 5 - 40 m (Ref. 45347). Temperate
Northwest Pacific: Hokkaido, Japan and Peter the Great Bay.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.0 cm SL male/unsexed; (Ref. 45347)
Morphology | Morphometrics
(total): 9 - 11;
soft rays: 18 - 20;
Vertebrae: 35 - 36. Head and body nearly naked except for lateral line scales and several spiny scales scattered above lateral line; a single tooth band on prevomer; length of anal fin base 39%-44% SL; length of caudal peduncle 8%-10% SL (Ref. 45347). Yellowish brown with four dark brown saddles dorsally; silvery white with reddish-yellow irregular lines ventrally; lower margin of maxilla and branchiostegal membrane black; posterior margin of caudal fin yellow; anal fin black in males (Ref. 45347).
Found over sand or gravel bottoms (Ref. 45347).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Yabe, M. and S. Maruyama, 2001. Systematics of sculpins of the genus Radulinopsis (Scorpaeniformes: Cottidae), with the description of a new species from northern Japan and the Russian Far East. Ichthyol. Res. 48(1):51-63. (Ref. 45347)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 6.6 - 17.4, mean 14.8 (based on 16 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00338 - 0.02247), 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
): 3.2 ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (27 of 100) .