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> Characiformes (Characins) > Triportheidae (Hatchet characins) > Triportheinae
Etymology: Triportheus: Greek, tres tria = three + Greek, portheo = to sack (Ref. 45335); orinocensis: Named after its type locality, Rio Orinoco..

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

; eau douce benthopélagique. Tropical

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South America: Rio Orinoco basin.

Length at first maturity / Taille / Poids / Âge

Maturity: L_m ?, range 19 - ? cm
Max length : 13.5 cm SL mâle / non sexé; (Ref. 54769)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Body deep, with depth at dorsal-fin origin 28.7-37.1% SL and depth at pectoral-fin insertion 32.2-39.3. Distinguished easily from its congeners by the extensive scaling over the caudal and anal fins. Differs from elongate-bodied Triportheus species that have 1 longitudinal scale row between the pectoral-fin insertion and the ventral keel by the presence of 2 longitudinal scale rows between the pectoral-fin insertion and the ventral keel. Differs further from deep-bodied congeners by the combination of the number of hill rakers on the lower limb of the first gill arch (24-28); the number of branched anal-fin rays (28-32); and the number of lateral-line scales (34-39) (Ref. 54769).

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Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Malabarba, M.C.S.L., 2004. Revision of the neotropical genus Triportheus Cope, 1872 (Characiformes: Characidae). Neotrop. Ichthyol. 2(4):167-204. (Ref. 54769)

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

Préoccupation mineure (LC) ; Date assessed: 25 October 2020

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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 2.8 ±0.3 se; based on size and trophs of closest relatives

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

Triportheus orinocensis Malabarba, 2004