Actinopterygii (ray-finned fishes) > Cyprinodontiformes
(Rivulines, killifishes and live bearers) > Nothobranchiidae
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335). More on author: Ahl.
Environment / Climate / Range
Freshwater; benthopelagic; pH range: 6.0 - 7.0; dH range: 4 - 6; non-migratory. Tropical; 20°C - 24°C (Ref. 1672); 19°S - 20°S
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.0 cm TL male/unsexed; (Ref. 27139)
Africa: lower Zambezi and lower Pungwe River systems in Mozambique; also likely to occur in floodplains of other rivers between Zambezi and Pungwe Rivers (Ref. 85866).
Occurs in temporary pools and swamps or water-filled depressions; water depth variable an descreases as dry season progresses; littoral vegetation consists of grasses; swamps may be used to cultivate rice (Ref. 85866). Bottom spawner, 4-6 months incubation. Is very difficult to maintain in aquarium (Ref. 27139).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Annual fish. Matures after 12 weeks. This updates previous information from Ref. 1672.
Shidlovskiy, K.M., B.R. Watters and R.H. Wildekamp, 2010. Notes on the annual killifish species Nothobranchius rachovii (Cyprinodontiformes; Nothobranchiidae) with the description of two new species. Zootaxa 2724:37-57. (Ref. 85866)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
Fisheries: ; aquarium: commercial
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00442 - 0.02595), b=2.92 (2.71 - 3.13), 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. 69278
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .