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Actinopterygii (ray-finned fishes) > Pleuronectiformes (Flatfishes) > Pleuronectidae (Righteye flounders) > Pleuronectinae
Etymology: Microstomus: Greek, mikros = small + Greek, stoma = mouth (Ref. 45335).

Environment / Climate / Range Ecology

Marine; demersal; depth range 10 - 1370 m (Ref. 50610). Temperate, preferred 9°C (Ref. 107945); 65°N - 31°N, 178°E - 117°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

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: L_m 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)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 90-116; Anal spines: 0; Anal soft rays: 80 - 96; Vertebrae: 50 - 54. Dorsal origin above middle of upper eye. Caudal imperfectly rounded.

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).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Amaoka, Kunio | Collaborators

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. 115185)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial; gamefish: yes

FAO(fisheries: production; publication : search) | FisheriesWiki | Sea Around Us

More information

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Age/Size
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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00708 (0.00401 - 0.01250), 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 = 0.28, 2 SD range = 0.15 - 0.54, log(r) = -1.27, SD log(r) = 0.32, Based on: 3 K, 7 tgen, 2 tmax, 4 Fec records

Vulnerability (Ref. 59153): High to very high vulnerability (71 of 100) .

Price category (Ref. 80766): Medium.

Microstomus pacificus (Lockington, 1879)