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); sagittae: The species name sagittae comes from the Latin sagittae meaning arrow; in reference to the relatively pointed head and slender shape (Ref. 98818).
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water pelagisch. Tropical
Africa: seasonal pools and swamps in Ruwana, Grumeti and Mbalageti river systems, Lake Victoria basin in Tanzania (Ref. 98818).
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 3.9 cm SL mannelijk / geslacht onbekend; (Ref. 98818)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 15 - 17; Anale stekels: 0; Anale zachte stralen: 15 - 18. Diagnosis: Nothobranchius sagittae is distinguished from all other members of the Nothobranchius neumanni species group by the following combination of characters: in the male, a relatively elongate body shape, a dorsal profile that is slightly convex, a concave transition between the head and body, a pointed snout, and an upward-directed mouth cleft; the anal fin in the male is red with one or two pale yellow, white or blue-white horizontal bands, a light blue-gray proximal part, and a distinct dark red margin; the caudal fin in the male is usually completely red with a relatively dark marginal band (Ref. 98818).
Body shape (shape guide): fusiform / normal; Cross section: circular.
Occurs in shallow, seasonal pools and swamps (Ref. 98818).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Wildekamp, R.H., B.R. Watters and K.M. Shidlovskiy, 2014. Review of the Nothobranchius neumanni species group with descriptions of three new species from Tanzania (Cyprinodontiformes: Nothobranchiidae). J. Am. Killifish Ass. 47(1):2-30. (Ref. 98818)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Bedreigd (EN) (B1ab(iii)+2ab(iii)); Date assessed: 12 January 2019
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
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Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00603 (0.00251 - 0.01446), b=3.13 (2.93 - 3.33), 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). 🛈 |