Actinopteri (ray-finned fishes) > Characiformes
(Characins) > Gasteropelecidae
Etymology: Thoracocharax: Greek, thorax, -akos = cuiras, shell + Greek, charax = a marine fish without identification (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; pelagic; pH range: 6.0 - 7.5; dH range: ? - 15; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 23°C - 30°C (Ref. 1672)
South America: Amazon River basin.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.8 cm SL male/unsexed; (Ref. 39056)
Aquarium specimens reach 9.0 cm TL (Ref. 1672). Aquarium keeping: in groups of 5 or more individuals; may jump out of the aquarium; minimum aquarium size 100 cm (Ref. 51539).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Weitzman, S.H. and L. Palmer, 2003. Gasteropelecidae (Freshwater hatchetfishes). p. 101-103. 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. 39056)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.7520 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01698 (0.00708 - 0.04076), b=3.10 (2.90 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.4 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .