Teleostei (teleosts) >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Aphyosemion: Greek, aphye, -es, sardine, anchovy + Greek, semeion = mark, signal (Ref. 45335).
Eponymy: Rudolf Hans ‘Ruud’ Wildekamp (1945–2019) was a Dutch aquarist and amateur ichthyologist who described at least twenty-seven fish species. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; non-migratory. Tropical; 20°C - 24°C (Ref. 2059)
Africa: Dja and Sangha drainages in Cameroon, Central African Republic and Republic of Congo (Ref. 47461). Also in the upper Ivindo (Ogooué River basin) in north-western Republic of Congo (Ref. 80395). Possibly also in the upper Likouala in Republic of Congo (see map in Ref. 47461), but this needs confirmation. Report from upper Sanaga questionable and unconfirmed in Ref. 80395.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.0 cm TL male/unsexed; (Ref. 27139)
Occurs in brooks, swamps and small streams, mainly in the shallow parts in the rainforest and forested savanna (Ref. 3788). Not a seasonal killifish. Is difficult to maintain in aquarium (Ref. 27139).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Wildekamp, R.H., R. Romand and J.J. Scheel, 1986. Cyprinodontidae. p. 165-276. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels, MRAC; Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 3788)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
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=0.00603 (0.00250 - 0.01453), b=3.13 (2.92 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).