Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bentopelagisk; pH range: 5.5 - 7.5; dH range: ? - 25; flodvandrande (Ref. 138143). Tropical; 22°C - 28°C (Ref. 2060); 8°N - 8°S, 72°W - 50°W
South America: upper Amazon River and French Guiana coastal basins.
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm 22.0  range ? - ? cm
Max length : 40.0 cm TL hane/ej könsbestämd; (Ref. 36801)
Adults occur in ponds. Favored food fish. They are strict herbivores which feed on plant debris, leaves and algae (Ref. 12225) but are reported as omnivores in Ref. 2060. The males are mature at 18 cm and the females at 22 cm (Ref. 12225). Distinct pairs breed on densely grown weedy places (Ref. 205). In the Amazon, the species of this genus are gregarious and undergo migration (Ref. 12225).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Distinct pairs breed on densely grown weedy places (Ref. 205).
Garavello, J.C. and H.A. Britski, 2003. Anostomidae (Headstanders). p. 71-84. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36801)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: kommersiell; Akvarium: Kommersiell
Verktyg
Särskilda rapporter
Ladda ner XML
Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 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=0.01259 (0.00719 - 0.02203), b=3.06 (2.91 - 3.21), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
2.5 ±0.20 se; based on food items. |
Resiliens (Ref. 120179) |
Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Moderate vulnerability (36 of 100). 🛈 |
Priskategori (Ref. 80766) |
Unknown.
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