Actinopterygii (ray-finned fishes) > Cyprinodontiformes
(Rivulines, killifishes and live bearers) > Nothobranchiidae
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335).
Environment / Climate / Range
Freshwater; benthopelagic; pH range: 6.0 - 7.0; dH range: 4 - 10; non-migratory. Tropical; 22°C - 25°C (Ref. 1672)
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.5 cm TL male/unsexed; (Ref. 27139); 6.3 cm TL (female)
Africa: endemic to the island of Zanzibar, eastern Tanzania.
Found in seasonal pools and streams (Ref. 3788). Used for biological control of mosquitoes. Quite popular with aquarists. One of the so called 'annual fishes' which has eggs that can withstand seasonal droughts (Ref. 1739). Bottom spawner, 3-4 months incubation. Difficult to maintain in an aquarium (Ref. 27139).
Huber, J.H., 1996. Killi-Data 1996. Updated checklist of taxonomic names, collecting localities and bibliographic references of oviparous Cyprinodont fishes (Atherinomorpha, Pisces). Société Française d'Ichtyologie, Muséum National d'Histoire Naturelle, Paris, France, 399 p.
IUCN Red List Status (Ref. 90363)
Threat to humans
Fisheries: of no interest; aquarium: commercial
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01200 (0.00505 - 0.02854), b=2.93 (2.72 - 3.14), based on LWR estimates for this Subfamily-BS (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 (tm= 0.12-0.15; tmax < 1 yr).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .