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Characiformes (Characins) >
Anostomidae (Headstanders) > Leporininae
Etymology: Schizodon: Greek, schizein = to divide + Greek, odous = teeth (Ref. 45335); unimaculatus: Name 'unimaculatus' from Latin words 'uni' and 'maculatus', meaning 'single' and 'blotted', in reference to the dark brown blotch over caudal peduncle of the new species.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce benthopélagique. Tropical
South America: Brazil.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 33.5 cm SL mâle / non sexé; (Ref. 133455)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 10; Rayons mous anaux: 8. This species is distinguished from its congeners by the following set of characters: presence of a single conspicuous dark blotch on the caudal peduncle, a longitudinal dark stripe along the midlateral surface of the body, three horizontally aligned brown blotches forming interrupted dorsolateral lines; longitudinal stripe absent; subinferior mouth; 16 circumpeduncular scales; aligned brown blotches over the trunk present; elongated inconspicuous light-brown stripe on lateral line combined with a dark brown blotch on caudal peduncle; 32-34 preanal scales (Ref. 133455).
Cross section: compressed.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Garavello, J.C., H.A. Britski, A.K. Oliveira and B.F. Melo, 2024. Schizodon unimaculatus, a new species from the lower Rio São Francisco with a reappraisal of the Schizodon species presenting a caudal-peduncle blotch (Teleostei: Anostomidae). Zootaxa 5537(2):245-258. (Ref. 133455)
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
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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=0.01096 (0.00511 - 0.02351), b=3.07 (2.89 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
2.4 ±0.2 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Moderate vulnerability (44 of 100). 🛈 |