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Characiformes (Characins) >
Distichodontidae (Distichodus)
Etymology: Nannocharax: Latin, nannus = small + Greek, charax = a marine fish without identification (Ref. 45335).
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; pelagic; pH range: 7.0 - 7.5; dH range: 8 - 12. Tropical; 20°C - 24°C (Ref. 13614)
Africa: middle Congo River basin, including the Dja (Sangha drainage) in Cameroon (Ref. 80507), Luachimo (Kasai tributary) in Angola (Ref. 11970) and the middle Congo River (Ref. 106245), Kasai (Ref. 11970, 95523), Uélé (Ref. 42480), Ruki (Ref. 11970), Aruwimi (Ref. 42480, 106290), Itimbiri, Lindi-Tshopo (Ref. 106290) and Wagenia Falls (Ref. 106245) in Democratic Republic of the Congo.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.0 cm TL male/unsexed; (Ref. 13614); common length : 6.2 cm TL male/unsexed; (Ref. 7094)
Feeds on small invertebrates (Ref. 13614).
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. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: of potential interest
Tools
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00189 - 0.01058), b=3.17 (2.96 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.37 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).