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> Pleuronectiformes (Flatfishes) > Paralichthyidae (Large-tooth flounders)
Etymology: Xystreurys: Greek, xystra, -as = scraper + Greek, eury = wide (Ref. 45335).
More on author: Jordan.

Environment: milieu / climate zone / depth range / distribution range Ökologie

seewasser demersal; ozeanodrom (Ref. 41500), usually 5 - 150 m (Ref. 36453). Subtropical; - 53°S

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Southwest Atlantic: Rio de Janeiro, Brazil to Patagonia, Argentina.

Length at first maturity / Size / Gewicht / Alter

Maturity: L_m 21.2 range ? - ? cm
Max length : 40.0 cm NG Männchen/unbestimmt; (Ref. 36453)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 0; Rückenflossenweichstrahlen (insgesamt) : 75 - 89; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 60 - 71. Dark spots on ocular side irregularly and two dark small spots at end of both dorsal and anal fin bases on blind side symmetrically (Ref. 27363).

Feeds on amphipods, small crabs and polychaetes (Ref. 36453). In spring mature individuals migrate to 37°S and southwards to spawn and in autumn migrate offshore for feeding and growing (Ref. 41500).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Distinct pairing (Ref. 205).

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Nakamura, I., T. Inada, M. Takeda and H. Hatanaka, 1986. Important fishes trawled off Patagonia. Japan Marine Fishery Resource Research Center, Tokyo. 369 p. (Ref. 27363)

IUCN Rote Liste Status (Ref. 130435: Version 2024-2)

nicht bedroht (LC) ; Date assessed: 06 January 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Estimates based on models

Preferred temperature (Ref. 123201): 6.3 - 22.9, mean 12.1 °C (based on 642 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00427 (0.00262 - 0.00695), b=3.22 (3.08 - 3.36), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.49 se; based on food items.

Generation time: 2.5 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (45 of 100).

Xystreurys rasilis (Jordan, 1891)