Environment: milieu / climate zone / depth range / distribution range
Ecologia
; acqua dolce benthopelagico. Tropical; 18°C - 23°C (Ref. 2059)
South America: usually in clear coastal streams from southern Bahia to northern Rio Grande do Sul, Brazil. Also found in some areas of the high Iguaçu River (Ref. 84543).
Length at first maturity / Size / Peso / Age
Maturity: Lm 2.8, range 3 - 3 cm
Max length : 6.1 cm SL maschio/sesso non determinato; (Ref. 38597)
Inhabit small to moderate-sized streams or rivers (Ref. 30267). Aquarium specimens reach 9.0 cm TL (Ref. 30267). Mature females keep live sperm cells in their ovary through insemination which occurs during the dry season (Ref. 84543). Spawning period coincides with the rainy season to ensure increased survival of offsprings (Ref. 84543).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Burns, J.R., S.H. Weitzman, K.R. Lange and L.R. Malabarba, 1998. Sperm ultrastructure in Characid fishes (Teleostei: Ostariophysi). p. 235-244. 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. 34096)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Informazioni ulteriori
Age/SizeAccrescimentoLength-weightLength-lengthLength-frequenciesMorfometriaMorfologiaLarveDinamica popolazioni larvaliReclutamentoAbbondanzaBRUVS
BibliografiaAcquacolturaProfilo di acquacolturaVarietàGeneticaElectrophoresesEreditarietàMalattieElaborazioneNutrientsMass conversion
CollaboratoriImmaginiStamps, Coins Misc.SuoniCiguateraVelocitàModalità di nuotoArea branchialeOtolithsCervelliVista
Strumenti
Special reports
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Fonti Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00594 - 0.02219), b=2.92 (2.75 - 3.09), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.41 se; based on food items.
Resilienza (Ref.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).