Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin; eau douce; saumâtre démersal; profondeur 0 - 90 m. Polar; 82°N - 63°N, 12°E - 104°W (Ref. 117245)
Northeast Atlantic and Arctic: White Sea and Barents Sea eastward along the coasts of Siberia and North America to Queen Maud Gulf in Arctic Canada. North Pacific: Chukchi and Bering seas to Bristol Bay, Alaska and the northern Sea of Okhotsk.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm 17.0, range 15 - 18.9 cm
Max length : 44.0 cm TL mâle / non sexé; (Ref. 58426); common length : 25.0 cm TL mâle / non sexé; (Ref. 117245); âge max. reporté: 26 années (Ref. 117245)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 50 - 62; Épines anales: 1; Rayons mous anaux: 35 - 44; Vertèbres: 37 - 38. Distinguished by the presence of both eyes on the same side of the head, normal scales and generally plain coloration (Ref. 27547). Lateral line with a very low curve above pectoral fin, straight behind and with a short accessory branch on head; 73-76 pores on main portion; it is complete in males but in females as large as about 20 cm it is an open groove on the posterior part of the body (Ref. 10319). Most anterior dorsal ray above eye; anal with an embedded forward-pointing spine before first ray; caudal rounded (Ref. 27547). Eyed side dark olive green to brown, sometimes with scattered black dots or indefinite dark blotches; blind side white, rarely with brown lappings over from the eyed side; fins pale brownish, sometimes with a somewhat yellow tinge or traces of dark spots (Ref. 27547).
Body shape (shape guide): short and / or deep.
A coastal species not found far offshore (Ref. 27547). Occurs at shallow depths on mud bottoms, often in brackish water (Ref. 4705) and frequently entering freshwaters (Ref. 59043). Benthic (Ref. 58426). Feeds on small fishes and bottom invertebrates (Ref. 4705). Moves closer inshore in the evenings, especially on a rising tide (Ref. 27547). Appears to move offshore in the fall and inshore in the spring (Ref. 27547).
Reproduction cycle believed to occur only every second year (Ref. 27547).
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: intérêt commercial mineur
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00437 (0.00285 - 0.00668), b=2.97 (2.84 - 3.10), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.4 ±0.1 se; based on diet studies. |
Résilience (Réf. 120179) |
Faible, temps minimum de doublement de population : 4,5 à 14 années (tmax=26; K=0.06; tm=2-8; Fec=31,000-230,000). |
Vulnérabilité de la pêche (Ref. 59153) |
High vulnerability (64 of 100). 🛈 |
Catégorie de prix (Ref. 80766) |
Medium.
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Nutriments (Ref. 124155) |
Calcium = 29.4 [10.2, 55.1] mg/100g; Iron = 0.302 [0.119, 0.716] mg/100g; Protein = 16.3 [14.8, 17.8] %; Omega3 = 0.173 [0.069, 0.392] g/100g; Selenium = 10.9 [4.0, 31.6] μg/100g; VitaminA = 12 [2, 81] μg/100g; Zinc = 0.565 [0.334, 0.906] mg/100g (wet weight); |