Teleostei (teleosts) >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; pH range: 6.5 - 7.0; dH range: 4 - 15; non-migratory. Tropical; 23°C - 30°C (Ref. 2060); 21°S - 23°S
Africa: Pans in Ghona-re-Zhou Game Reserve in southeastern Zimbabwe. Reported from Save River (Ref. 13332). Extremely rare and is threatened by habitat destruction and insecticide spraying.
Length at first maturity / Size / Weight / Age
Maturity: Lm 3.2 range ? - ? cm
Max length : 6.5 cm TL male/unsexed; (Ref. 27139)
Occurs in temporary pools (Ref. 3788). Bottom spawner, 5-7 months incubation (Ref. 27139). Annual species with a lifespan of less than 12 weeks in captivity, suggested to be the shortest lifespan ever reported for a vertebrate (Ref. 47810); but life span of Eviota sigillata might be even shorter at 59 days at most (Ref. 54199).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Annual fishes. This updates previous information from Ref. 2060. Before their seasonal habitat disappears adults spawn and lay eggs in the muddy bottom. Embryos survive encased in dry mud in a dormant state and hatch at the onset of the next rainy season to repeat the life cycle (Ref. 47810).
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. (Ref. 27139)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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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=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this 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 (tm=0.04).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
