Actinopterygii (ray-finned fishes) > Characiformes
(Characins) > Distichodontidae
Etymology: Nannocharax: Latin, nannus = small + Greek, charax = a marine fish without identification (Ref. 45335). More on author: Pellegrin.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; pelagic. Tropical; 24°C - 28°C (Ref. 12468); 11°S - 20°S
Africa: Okavango and Kafue system in southern Africa (Ref. 52193). Also in the lower (Ref. 42510, 41585), middle (Ref. 11970, 41590, 41591, 82705) and upper (Ref. 106245) Congo River basin. Reports from the upper Zambezi and some from the Kafue (Ref. 12524, 13337, 94654) are misidentifications of Nannocharax dageti (Ref. 95523).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.0 cm SL male/unsexed; (Ref. 52193)
Found in marginal vegetation of large rivers, in flowing water; picks small insects and other invertebrates from plant surfaces; pot sufficiently common for aquarium trade (Ref. 7248, 52193).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Daget, J. and J.-P. Gosse, 1984. Distichodontidae. p. 184-211. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 7094)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass 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=0.00380 (0.00147 - 0.00985), b=3.11 (2.88 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.4 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.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .