Actinopterygii (ray-finned fishes) > Pleuronectiformes
(Flatfishes) > Pleuronectidae
(Righteye flounders) > Pleuronectinae
Etymology: Microstomus: Greek, mikros = small + Greek, stoma = mouth (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 15 - 800 m (Ref. 57942), usually 20 - 610 m (Ref. 50610). Temperate
Northwest Pacific: central Japan northward, southern Kuril Islands, Sakhalin, Sea of Japan, the Yellow Sea, Gulf of Bo Hai and East China Sea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 60.0 cm SL male/unsexed; (Ref. 559); max. published weight: 1.8 kg (Ref. 40637)
Inhabits sand and mud bottoms (Ref. 9137, 11230).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Cooper, J.A. and F. Chapleau, 1998. Monophyly and intrarelationships of the family Pleuronectidae (Pleuronectiformes), with a revised classification. Fish. Bull. 96(4):686-726. (Ref. 30193)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 0.8 - 21.9, mean 8.6 (based on 1055 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.00684 - 0.02113), b=3.11 (2.96 - 3.26), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.2 se; Based on diet studies.
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (K=0.08-0.11).
Vulnerability (Ref. 59153
): High to very high vulnerability (69 of 100) .