Environment: milieu / climate zone / depth range / distribution range
Ecología
marino demersal; oceanodromo (Ref. 41500), usually 5 - 150 m (Ref. 36453). Subtropical; - 53°S
Southwest Atlantic: Rio de Janeiro, Brazil to Patagonia, Argentina.
Length at first maturity / Tamaño / Peso / Age
Maturity: Lm 21.2  range ? - ? cm
Max length : 40.0 cm NG macho / no sexado; (Ref. 36453)
Espinas dorsales (total): 0; Radios blandos dorsales (total): 75-89; Espinas anales 0; Radios blandos anales: 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
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Distinct pairing (Ref. 205).
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 Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Más información
ReferenciasAcuiculturaPerfil de acuiculturaRazasGenéticaElectrophoresesheritabilidadEnfermedadesProcesamientoNutrientsMass conversion
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Fuentes de Internet
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): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00264 - 0.00688), b=3.22 (3.08 - 3.36), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Nivel trófico (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.
Resiliencia (Ref.
120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (45 of 100).