Actinopterigi (pesci con pinne raggiate) >
Pleuronectiformes (Flatfishes) >
Pleuronectidae (Righteye flounders) > Pleuronectinae
Etymology: Liopsetta: Greek, leio = smooth + Greek,psetta = grouper (Ref. 45335).
Ambiente / Clima / Range
Ecologia
; marino; acqua dolce; salmastro demersale; distribuzione batimetrica 0 - 90 m (Ref. 50550). Polar, preferred ?
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.
Size / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 35.0 cm TL maschio/sesso non determinato; (Ref. 2058)
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).
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).
Cooper, J.A. and F. Chapleau, 1998. Monophyly and intrarelationships of the family Pleuronectidae (Pleuronectiformes), with a revised classification. Fish. Bull. 96(4):686-726. (Ref. 30193)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
Pesca: scarso interesse commerciale
Informazioni ulteriori
BibliografiaAcquacolturaProfilo di acquacolturaVarietàGeneticaFrequenze allelicheEreditarietàMalattieElaborazioneMass conversion
Strumenti
Special reports
Download XML
Fonti Internet
Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00248 - 0.00611), b=2.96 (2.83 - 3.09), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic Level (Ref.
69278): 3.4 ±0.1 se; Based on diet studies.
Resilienza (Ref.
69278): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (K=0.06; tm=2; Fec=31,000-230,000).
Prior r = 0.3, 2 SD range = 0.11 - 0.79, log(r) = -1.2, SD log(r) = 0.49, Based on: 1 K, 1 tgen, 2 Fec records
Vulnerability (Ref.
59153): High vulnerability (65 of 100) .
