Environment: milieu / climate zone / rango de profundidad / distribution range
Ecología
marino; agua dulce; salobre pelagic-neritic; rango de profundidad 1 - ? m (Ref. 27363). Subtropical; 11°C - 24°C (Ref. 52052); 26°S - 41°S
South America: southern Argentina and Río de La Plata. Introduced into Europe and Asia.
Length at first maturity / Tamaño / Peso / Age
Madurez: Lm 13.2 range ? - ? cm
Max length : 50.0 cm TL macho / no sexado; (Ref. 12187); edad máxima reportada: 4 años (Ref. 59043)
Espinas dorsales (total) : 6; Radios blandos dorsales (total) : 9; Espinas anales: 1; Radios blandos anales: 18 - 22. Body bluish brown dorsally, silvery ventrally. A broad silvery band with dark blue upper margin running from pectoral fin base to caudal fin base along midbody. Upper surface of head, pectoral and caudal fins blackish (Ref. 27363). Scales in the lateral line series above the lateral band 52-60; predorsal scales 28-35 (Ref. 47314).
Body shape (shape guide): elongated.
Inhabit coastal lagoons and near estuaries, usually in freshwater (Ref. 27363, 59043). Gregarious. Adults feed on zooplankton. Mature adults spawn for the first time at 1-2 years. Eggs are deposited among aquatic vegetation (Ref. 59043). Maximum length estimated from the fact that the congeneric Odontesthes incisa has a common length of 10 cm TL. This species is a cool water predator that has affected the abundance of other species native to the lakes (Ref. 1739). The fisheries has now flourished especially in lakes and reservoirs, in Peru, Argentina, southern Brazil and Chile.
Dyer, B.S., 1998. Phylogenetic systematics and historical biogeography of the neotropical silverside family Atherinopsidae (Teleostei: Atheriniformes). p. 519-536. In L.R. Malabarba, R.E. Reis, R.P. Vari, Z.M.S. Lucena and C.A.S. Lucena (eds.) Phylogeny and classification of neotropical fishes. Porto Alegre: EDIPUCRS. (Ref. 33128)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Potential pest
Human uses
Pesquerías: escaso valor comercial; Acuicultura: comercial; pesca deportiva: si
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Phylogenetic diversity index (Referencia
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00314 - 0.00878), b=3.05 (2.91 - 3.19), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Nivel trófico (Referencia
69278): 2.6 ±0.24 se; based on food items.
Generation time: 2.0 (1.5 - 2.8) years. Estimated as median ln(3)/K based on 31
growth studies.
Resiliencia (Referencia
120179): Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (K=0.1; tmax=4).
Fishing Vulnerability (Ref.
59153): Low vulnerability (24 of 100).
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Nutrients (Ref.
124155): Calcium = 114 [67, 217] mg/100g; Iron = 1.57 [0.90, 2.57] mg/100g; Protein = 19.5 [17.2, 22.2] %; Omega3 = 0.284 [0.129, 0.706] g/100g; Selenium = 22.1 [9.9, 46.3] μg/100g; VitaminA = 6.4 [2.1, 20.1] μg/100g; Zinc = 1.19 [0.84, 1.68] mg/100g (wet weight);
