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> Tetraodontiformes (Puffers and filefishes) > Tetraodontidae (Puffers) > Tetraodontinae
Etymology: Colomesus: Greek, kolos = short, truncated + Greek, mesos = a half (Ref. 45335); tocantinensis: Named for its type locality, Porto Nacional, State of Tocantins, Brazil..

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

; eau douce démersal. Tropical

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South America: Brazil.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 3.5 cm SL mâle / non sexé; (Ref. 122317)

Description synthétique Clés d'identification | Morphologie | Morphométrie

This species is distinguished from its congeners (asellus, psittacus) by the following characters: basal pterygiophores 6-7 and anal-fin rays 9 (vs. 10-11 for both its congeners); basal pterygiophores and dorsal-fin rays 10 (vs. 11); an opercle with a posterior ventral border subdivided in a ventral and a posterior region, the herein called ‘‘inverted V’’ shape (vs. triangular opercle); differs from C. asellus by the absence of dermal flaps across the chin (vs. uniquely present in C. asellus); caudal peduncle with 8 vertebrae (Ref. 122317).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves

Référence principale Upload your references | Références | Coordinateur : Matsuura, Keiichi | Collaborateurs

Amaral, C.R.L., P.M. Brito, D.A. Silva and E.F. Carvalho, 2013. A new cryptic species of South American freshwater pufferfish of the genus Colomesus (Tetraodontidae),based on both morphology and DNA data. PLoS ONE 8(9):1-15. (Ref. 122317)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Non évalué

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.02570 (0.01193 - 0.05536), b=2.88 (2.71 - 3.05), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 3.1 ±0.5 se; based on size and trophs of closest relatives

Résilience (Ref. 120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).

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

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Colomesus tocantinensis Amaral, Brito, Silva & Carvalho, 2013