Actinopteri (ray-finned fishes) > Characiformes
(Characins) > Hemiodontidae
Etymology: Argonectes: Greek, argos = bright and also Greek, argos = passive, sluggish + Greek, nekton = to swim (Ref. 45335). More on author: Kner.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
South America: Amazon River at Japurá, Orinoco, Maroni, Negro, Trombetas, Tapajós and Canumã River basins.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 24.5 cm SL male/unsexed; (Ref. 38289)
Frequently occurs in swift flowing waters, over a sandy bottom (Ref. 12225). Oviparous (Ref. 205).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairing (Ref. 205).
Langeani, F., 2003. Hemiodontidae (Hemiodontids). p. 96-100. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 38289)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00526 - 0.02507), b=3.05 (2.86 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.8 ±0.4 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (20 of 100) .