Common names from other countries
Teleostei (teleosts) >
Characiformes (Characins) >
Hemiodontidae (Halftooths)
Etymology: Argonectes: Greek, argos = bright and also Greek, argos = passive, sluggish + Greek, nekton = to swim (Ref. 45335).
More on author: Kner.
Issue
See Langeani (1999) for diagnoses, figure, distribution and comparison with Argonectes robertsi.
Environment: milieu / climate zone / depth range / distribution range
Ecology
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 : 26.0 cm SL male/unsexed; (Ref. 125971); max. published weight: 312.00 g (Ref. 125971)
Frequently occurs in swift flowing waters, over a sandy bottom (Ref. 12225). Oviparous (Ref. 205).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | 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. 130435)
CITES (Ref. 128078)
Not Evaluated
Threat to humans
Harmless
Human uses
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00718 - 0.01922), b=3.07 (2.92 - 3.22), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 2.8 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (22 of 100).