Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino; acqua dolce; salmastro demersale; distribuzione batimetrica 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.
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm 17.0, range 15 - 18.9 cm
Max length : 44.0 cm TL maschio/sesso non determinato; (Ref. 58426); common length : 25.0 cm TL maschio/sesso non determinato; (Ref. 117245); Età massima riportata: 26 anni (Ref. 117245)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 0; Raggi dorsali molli (totale) : 50 - 62; Spine anali: 1; Raggi anali molli: 35 - 44; Vertebre: 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)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: scarso interesse commerciale
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 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). |
Livello trofico (Fonte Biblio. 69278) |
3.4 ±0.1 se; based on diet studies. |
Resilienza (Fonte Biblio. 120179) |
Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (tmax=26; K=0.06; tm=2-8; Fec=31,000-230,000). |
Vulnerabilità della pesca (Ref. 59153) |
High vulnerability (64 of 100). 🛈 |
Categoria di prezzo (Ref. 80766) |
Medium.
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Nutrienti (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); |