Classificatie / Namen
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335); iridescens: Name 'iridescens' from the Latin participial adjective deriving from the ancient Greek word 'iris', meaning 'rainbow', in reference to the colourful appearance of the males, containing different colours of the rainbow.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water benthopelagisch. Tropical
Africa: DR Congo.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 4.3 cm SL mannelijk / geslacht onbekend; (Ref. 138275)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 16 - 17; Anale zachte stralen: 17 - 18. This species is distinguished from its congeners by the following set of characters: anal fin with irregular red-brown spots and stripes, creating two irregular submedial and medial bands and with broad yellow subdistal band; caudal fin with a slender light blue subdistal band, densely marked with irregular red spots, and narrow dark brown distinct distal margin; caudal peduncle length 153-161 in % of its depth; eye diameter 31-34% HL; and predorsal length 52.4-55.6% SL (Ref. 138275).
Body shape (shape guide): fusiform / normal; Cross section: oval.
This species inhabits a turbid pool, about 50 cm in depth, with margins partially overgrown by grass (Ref. 138275).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Nagy, B., 2025. Review of Cyprinodontiform fishes in the Upper Congo drainage with descriptions of four new species of seasonal Nothobranchius (Nothobranchiidae) and a new species of 'Lacustricola' Lampeye (Procatopodidae) in South-Eastern DR Congo. Ecology and Diversity 2:10006. (Ref. 138275)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
Tools
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Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00461 - 0.02608), b=2.94 (2.74 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Kwetsbaarheid van de visserij (Ref.
59153): Low vulnerability (10 of 100).
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