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> Characiformes (Characins) > Iguanodectidae ("Lizard bite tetras")
Etymology: Bryconops: Greek, bryko = to bite + Greek, ops = appearance (Ref. 45335); tocantinensis: Name refers to the rio Tocantins drainage, where this species is currently known to occur. An adjective.

Environment: milieu / climate zone / depth range / distribution range Écologie

; eau douce benthopélagique; profondeur ? - 2 m (Ref. 109891). Tropical

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South America: Rio Conceição, a tributary to the rio Palma, upper rio Tocantins drainage in Tocantins, Brazil.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 6.5 cm SL mâle / non sexé; (Ref. 109891)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Rayons mous dorsaux (Total) : 10 - 11; Rayons mous anaux: 25 - 29; Vertèbres: 40. Bryconops tocantinensis is distinguished from all species of Bryconops, except B. humeralis and B. vibex by the color pattern in vivo (dorsal, adipose, and caudal fins entirely orange). It differs from B. humeralis and B. vibex by the lack of a humeral spot and by the lack of maxillary teeth (vs. a single humeral spot present and 1-3 maxillary teeth on both sides present). It can be further diagnosed from B. vibex by having 38-41 perforated lateral line scales (vs. 44-46) (Ref. 109891).

Inhabits stream and lotic shallow areas (depth up to 1.5 m) with riparian vegetation composed by trees and shrubs. The stream is characterized by transparent water and sandy, stony, and rocky bottom. Occurs syntopically with Eigenmannia trilineata, Hoplerythrinus unitaeniatus, Astyanax cf. goyacensis, Knodus cf. breviceps, Knodus sp., and Ancistrus sp. (Ref. 109891).

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Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Guedes, T.L.O., E.F. Oliveira and P.H.F. Lucinda, 2016. A new species of Bryconops (Ostariophysi: Characiformes: Characidae) from the upper rio Tocantins drainage, Brazil. Neotrop. Ichthyol. 14(2):1-8. (Ref. 109891)

Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-1)

Non évalué

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01072 (0.00453 - 0.02537), b=3.01 (2.81 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Bryconops tocantinensis Guedes, Oliveira & Lucinda, 2016