Teleostei (teleosts) >
Characiformes (Characins) >
Acestrorhynchidae (Smallscale pike characins) > Heterocharacinae
Etymology: Heterocharax: Greek, heteros = other + Greek, charax = a marine fish without identification (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: Amazon and Orinoco River basins.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.1 cm SL male/unsexed; (Ref. 36811)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Toledo-Piza, M., 2000. Two new Heterocharax species (Teleostei: Ostariophysi: Characidae), with a redescription of H. macrolepis. Ichthyol. Explor. Freshwat. 11(4):289-304. (Ref. 38319)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01000 (0.00374 - 0.02675), b=2.97 (2.75 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trophic level (Ref. 69278) |
3.4 ±0.6 se; based on size and trophs of closest relatives |
Resilience (Ref. 120179) |
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.). |
Fishing Vulnerability (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |