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 10 - 1370 m (Ref. 50610). Temperate; 65°N - 31°N, 178°E - 117°W
Eastern Pacific: Navarin Canyon in the Bering Sea to Stalemate Bank in the Aleutian Islands and San Cristobal Bay, Baja California, Mexico.
Length at first maturity / Size / Weight / Age
Maturity: Lm 38.0, range 38 - 40 cm
Max length : 76.0 cm TL male/unsexed; (Ref. 2850); common length : 40.0 cm TL male/unsexed; (Ref. 56527); max. published weight: 3.5 kg (Ref. 56527); max. reported age: 56 years (Ref. 74500)
Adults occur on mud bottom (Ref. 2850). They move into deep water in winter (Ref. 2850). Produce large amounts of slime which may cover other fishes when caught in trawls (Ref. 4925). Marketed as mink food (Ref. 4925) or as fillet (Ref. 2850).
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Fisheries: commercial; gamefish: yes
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 1.1 - 6.3, mean 3.5 (based on 248 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00414 - 0.01268), b=3.05 (2.90 - 3.20), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.1 se; Based on diet studies.
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (tm=5; tmax=56; K=0.26; Fec=37,000).
Prior r = 0.35, 95% CL = 0.23 - 0.52, Based on 3 stock assessments.
Vulnerability (Ref. 59153
): High to very high vulnerability (71 of 100) .