Environment: milieu / Klimaatzone / Diepte / distribution range
Ecologie
; zoet water pelagisch. Tropical; 11°S - 20°S
Africa: Cunene, Okavango, Upper Zambezi and Kafue systems. A similar, possibly identical, species (Rhadalestes rhodesiensis) occurs in the Zambian Congo system (Lakes Bangweulu and Mweru, and Luapula River).
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 8.5 cm TL mannelijk / geslacht onbekend; (Ref. 13337)
Dorsale stekels (totaal) : 2; Dorsale zachte stralen (totaal) : 7 - 9; Anale stekels: 2 - 3; Anale zachte stralen: 16 - 19. Can be easily confused with Micralestes acutidens but has a more slender body with no black tip to the dorsal fin. Does not possess a pair of conical teeth behind row of teeth in lower jaw as in M. acutidens.
Body shape (shape guide): fusiform / normal.
Shoals in shallow, vegetated marginal and floodplain habitats. Appears to prefer a swampy environment to open water (Ref. 13337). Feeds on small aquatic insects and other invertebrates. A partial spawner, breeding during high-water periods (Ref. 7248). Known to migrate up rivers and on to floodplains during flood season (Ref. 13337).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Paugy, D., 1984. Characidae. p. 140-183. 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. 5331)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-1)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel; Aquarium: Commercieel
Tools
Speciale rapporten
Download XML
Internetbronnen
Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00484 - 0.02371), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.3 ±0.39 se; based on food items.
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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