Actinopterygii (ray-finned fishes) > Pleuronectiformes
(Flatfishes) > Pleuronectidae
(Righteye flounders) > Pleuronectinae
Etymology: Lepidopsetta: Greek, lepis = scale + Greek, psetta = grouper (Ref. 45335); polyxystra: From the numerous gill rakers of this fish compared with congeneric species.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 0 - 700 m (Ref. 50550), usually 19 - 246 m (Ref. 37594). Temperate
North Pacific: Puget Sound, Washington (USA) through the Bering Sea and Aleutian Islands to the Kuril Islands; overlapping with L. bilineata from the extreme SE Bering Sea to Puget Sound; and with L. mochigarei in the southern Sea of Okhotsk.
Length at first maturity / Size / Weight / Age
Maturity: Lm 30.9  range ? - ? cm
Max length : 69.0 cm TL male/unsexed; (Ref. 37594); 49.0 cm FL (female); max. reported age: 18 years (Ref. 37594)
Vertebrae: 39 - 41. Blind side creamy in life, no glossy highlights along myotome margins. Pores: supraorbital 1-3, rarely 4-7; preopercular 5-8; lateral line 76-100. Interorbital space wide. Total scales above and below lateral line 66-96 (Ref. 37594).
Occurs on sand, also together with gravel and mud (Ref. 37594).
Orr, J.W. and A.C. Matarese, 2000. Revision of the genus Lepidopsetta Gill, 1862 (Teleostei: Pleuronectidae) based on larval and adult morphology, with a description of a new species from the North Pacific Ocean and Bering Sea. Fish. Bull. 98:539-582. (Ref. 37594)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 1.4 - 8.8, mean 4.7 (based on 1094 cells).
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00683 - 0.00883), b=3.09 (3.05 - 3.13), in cm Total Length, based on LWR estimates for this species (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.2 se; Based on diet studies.
Generation time: 4.2 ( na - na) years. Estimated as median LN(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (tm=7; K=0.25).
Prior r = 0.28, 95% CL = 0.18 - 0.42, Based on 1 stock assessment.
Vulnerability (Ref. 59153
): Moderate to high vulnerability (46 of 100) .