Classificazione / Nomi
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Characiformes (Characins) >
Anostomidae (Headstanders) > Leporininae
Etymology: Insperanos: Name from Latin 'īnspērāns' for unexpected, alluding to the surprising discovery of an ancient
lineage of Anostomidae represented by I. nattereri, plus the four first letters of Anostomus referring to the type genus of the family, following the practice of previous authors who described genera in the Anostomidae (e.g. Pseudanos Winterbottom, 1980;
Petulanos Sidlauskas & Vari, 2008).
Eponymy: Dr Johann Natterer (1787–1843) was an Austrian naturalist and collector. [...] (Ref. 128868), visit book page.
More on author: Steindachner.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce benthopelagico. Tropical
South America: throughout Orinoco and Amazon basins; Brazil and possibly Bolivia and Colombia.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 36.0 cm TL maschio/sesso non determinato; (Ref. 126097); peso massimo pubblicato: 669.92 g (Ref. 126097)
Adults occur in rocky areas of the river with moderate to high current (Ref. 57460). Feed on sponges (Ref. 57460). Distinct pairs breed on densely grown weedy places (Ref. 205).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Distinct pairs breed on densely grown weedy places (Ref. 205).
Sidlauskas, B.L., F.M. Assega, B.F. Melo, C. Oliveira and J.L.O. Birindelli, 2021. Total evidence phylogenetic analysis reveals polyphyly of Anostomoides and uncovers an unexpectedly ancient genus of Anostomidae fishes (Characiformes). Zool. J. Linn. Soc. 194(2):626-669. (Ref. 138033)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00891 (0.00521 - 0.01525), b=3.08 (2.93 - 3.23), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
2.3 ±0.1 se; based on size and trophs of closest relatives |
Resilienza (Fonte Biblio. 120179) |
Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Preliminary K or Fecundity.). |
Vulnerabilità della pesca (Ref. 59153) |
Moderate vulnerability (35 of 100). 🛈 |