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Pleuronectiformes (Flatfishes) >
Pleuronectidae (Righteye flounders) > Pleuronectinae
Etymology: Isopsetta: Greek, isos = equal + Greek, psetta, grouper.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino demersale; oceanodromo (Ref. 51243); distribuzione batimetrica 20 - 425 m (Ref. 6793). Temperate; 66°N - 32°N
Eastern Pacific: Bristol Bay in the southeastern Bering Sea and Amchitka Island (Aleutian Islands) to Ventura, California, USA.
Length at first maturity / Size / Peso / Age
Maturity: Lm 21.0  range ? - ? cm
Max length : 55.0 cm TL maschio/sesso non determinato; (Ref. 2850); Età massima riportata: 11 anni (Ref. 6885)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 0; Raggi dorsali molli (totale) : 78 - 92; Spine anali: 0; Raggi anali molli: 58 - 69; Vertebre: 39 - 42. Dorsal origin above eye. Caudal rounded. Pectoral small, bluntly pointed.
Common in shallow water on soft, silty bottom. Moves into shallow water in summer and to deeper water in winter (Ref. 6885). Spawning adults exhibit north-south migrations (Ref. 6885). Feeds on chaetopod marine worms, young herring, shrimps, and sand dollars (Ref. 6885). A tasty food fish, sometimes marketed (Ref. 2850). Also used for mink food (Ref. 2850).
Vinnikov, K.A., R.C. Thomson and T.A. Munroe, 2018. Revised classification of the righteye flounders (Teleostei: Pleuronectidae) based on multilocus phylogeny with complete taxon sampling. Molecular phylogenetics and evolution, 125:147-162. (Ref. 122998)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Pesca: scarso interesse commerciale; Pesce da pesca sportiva: si
Strumenti
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Estimates based on models
Preferred temperature (Ref.
123201): 1.1 - 7.6, mean 4.7 °C (based on 300 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00457 - 0.01819), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.6 ±0.54 se; based on food items.
Generation time: 4.2 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Resilienza (Ref.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (K=0.26; tmax=11; tm=2).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (35 of 100).
Nutrients (Ref.
124155): Calcium = 35.2 [13.5, 60.7] mg/100g; Iron = 0.281 [0.139, 0.548] mg/100g; Protein = 18.1 [15.6, 20.1] %; Omega3 = 0.367 [0.180, 0.767] g/100g; Selenium = 20.8 [10.7, 45.2] μg/100g; VitaminA = 6.76 [1.59, 30.94] μg/100g; Zinc = 0.387 [0.261, 0.583] mg/100g (wet weight); based on
nutrient studies.