Taxonomic Remarks
See Menezes, 1987: 31 for diagnosis.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce benthopélagique; profondeur 4 - 20 m (Ref. 126103). Subtropical; 21°S - 35°S
South America: southeastern Brazil and the La Plata basin.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 32.0 cm TL mâle / non sexé; (Ref. 111130)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 11; Épines anales: 3; Rayons mous anaux: 26.
Body shape (shape guide): fusiform / normal.
Occurs in ponds (Ref. 11229). Inhabits shallow, densely vegetated microhabitats in small streams or along the banks of larger rivers (Ref. 106564). Feeds mostly on fishes (Ref. 598). Two rodents (Sigmodontinae) were found in the stomachs of two individuals in different rivers located in the southern Brazilian Atlantic Rain Forest, in March and November 2010. These represent the first records of this species feeding on mammals (Ref. 106564).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Géry, J., 1977. Characoids of the world. Neptune City ; Reigate : T.F.H. [etc.]; 672 p. : ill. (chiefly col.) ; 23 cm. (Ref. 598)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00759 (0.00489 - 0.01178), b=3.04 (2.92 - 3.16), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
4.2 ±0.73 se; based on food items. |
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Generation time |
1.5 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Résilience (Réf. 120179) |
Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (22 of 100). 🛈 |
Nutriments (Ref. 124155) |
Calcium = 68.1 [18.5, 168.3] mg/100g; Iron = 1.55 [0.81, 3.65] mg/100g; Protein = 19.2 [17.2, 21.4] %; Omega3 = 0.843 [0.346, 2.269] g/100g; Selenium = 33.5 [13.3, 74.1] μg/100g; VitaminA = 46.9 [15.2, 140.5] μg/100g; Zinc = 0.957 [0.665, 1.374] mg/100g (wet weight); |