Actinopteri (ray-finned fishes) > Characiformes
(Characins) > Hemiodontidae
Etymology: Hemiodus: Greek, hemi = half + Greek, odous = teeth (Ref. 45335). More on author: Bloch.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; pH range: 5.5 - 7.5; dH range: ? - 20; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 23°C - 26°C (Ref. 2060)
South America: Amazon, Tocantins, Capim, Suriname, Camopi, and Oyapock River basins.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 26.0 cm SL male/unsexed; (Ref. 96599); max. published weight: 259.00 g (Ref. 111115)
Occurs in fast-flowing rivers over rocky substrate. Abundant in the lower part of rivers. Feeds on detritus and periphyton. Mature at about 11 cm; breeds during the rainy season (Ref. 12225). Iteroparous synchronous spawner (Ref. 51777).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairing (Ref. 205).
Géry, J., 1977. Characoids of the world. Neptune City ; Reigate : T.F.H. [etc.]; 672 p. : ill. (chiefly col.) ; 23 cm. (Ref. 598)
IUCN Red List Status (Ref. 124695)
Threat to humans
Fisheries: minor commercial; aquarium: commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01230 (0.00947 - 0.01598), b=3.06 (2.99 - 3.13), in cm total length, based on LWR estimates for this species (Ref. 93245
Trophic level (Ref. 69278
): 2.0 ±0.00 se; based on food items.
Vulnerability (Ref. 59153
): Low vulnerability (22 of 100) .