Nothobranchius sainthousei Nagy, Cotterill & Bellstedt, 2016
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drawing shows typical species in Nothobranchiidae.
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drawing shows typical species in Nothobranchiidae.
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> Cyprinodontiformes (Rivulines, killifishes and live bearers) > Nothobranchiidae (African rivulines)
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335); sainthousei: The specific name honours Ian Sainthouse, renowned breeder and collector of killifish, for his special longstanding dedication to researches on the genus Nothobranchius; a noun in genitive (Ref. 116789).
Eponymy: Ian Sainthouse is a British aquarist and killifish enthusiast. He was honoured as a: “… renowned breeder and collector of killifish” and for “…his special longstanding dedication to researches on the genus Nothobranchius”. (Ref. 128868), visit book page.
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335); sainthousei: The specific name honours Ian Sainthouse, renowned breeder and collector of killifish, for his special longstanding dedication to researches on the genus Nothobranchius; a noun in genitive (Ref. 116789).
Eponymy: Ian Sainthouse is a British aquarist and killifish enthusiast. He was honoured as a: “… renowned breeder and collector of killifish” and for “…his special longstanding dedication to researches on the genus Nothobranchius”. (Ref. 128868), visit book page.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie
; zoet water benthopelagisch. Tropical
Verspreiding Gebieden | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri
Africa: ephemeral pools in riverbed of Chimbembe River, Luapula River drainage, in Zambia (Ref. 116789).
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 4.1 cm SL mannelijk / geslacht onbekend; (Ref. 116789); 3.0 cm SL (female)
Max length : 4.1 cm SL mannelijk / geslacht onbekend; (Ref. 116789); 3.0 cm SL (female)
Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 15 - 19; Anale stekels: 0; Anale zachte stralen: 15 - 19; Wervels: 29. Diagnosis: Nothobranchius sainthousei is distinguished from the other Nothobranchius species from the drainages of the Upper Congo in northern Zambia and Katanga province of DRC, except N. rosenstocki, by having broad orange-brown posterior scale margins on the trunk, vs. red, and an anal fin with orange-brown margin, vs. light blue or yellow or red-brown or black (Ref. 116789). It is distinguished from N. rosenstocki by having dorsal and anal fins with orange-brown spots, vs. irregular orange-brown bars; furthermore, N. sainthousei is distinguished from all members of the N. brieni group by head length, 25.1-29.3% of standard length vs. 29.6-38.7%, and head width, 71-79% of head length vs. 52-62% (Ref. 116789).
Body shape (shape guide): fusiform / normal.
Body shape (shape guide): fusiform / normal.
Found in ephemeral habitats in the floodplain between the small seasonal Chimbembe and Kusake rivers; about 5 km southwest of the confluence of the Luapula with the Luongo (Ref. 116789). The ephemeral pools were about 5-10 m wide, and less than 1 m deep at the deepest point; the aquatic habitat was heavily overgrown with grass (Ref. 116789). The water of pH 6.98 contained 15 ppm of total dissolved solids; it was brown and turbid, so the pool substratum was only visible at shallower depths; the water temperature measured at midday was 23.0°C (Ref. 116789). The conservation status of Nothobranchius sainthousei is uncertain, but appears to qualify as vulnerable (Ref. 116789). Stomach contents of adult wild-caught specimens show that N. sainthousei is a micropredator, feeding on small aquatic crustaceans, worms, insect larvae and other zooplankton (Ref. 116789).
Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Hoofdreferentie
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Nagy, B., F.P.D. Cotterill and D.U. Bellestedt, 2016. Nothobranchius sainthousei, a new species of annual killifish from the Luapula River drainage in northern Zambia (Teleostei: Cyprinodontiformes). Ichthyol. Explor. Freshwat. 27(3):233-254. (Ref. 116789)
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
CITES
Not Evaluated
Gevaar voor de mens
Harmless
Gebruik door de mens
FAO - Publication: search | FishSource |
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Trofische ecologie
Voedsel (prooien)
Dieetsamenstelling
Voedselconsumptie
Voedselrantsoenen
Predatoren
Voedsel (prooien)
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Voedselconsumptie
Voedselrantsoenen
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Lengtefrequenties
Massaconversie
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Lengte-lengte rel.
Lengtefrequenties
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Fecunditeit
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Ontwikkeling van de eieren
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Paaibestanden
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Ontwikkeling van de eieren
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Larvale populatiedynamiek
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Type zwemmen
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Ziekten en parasieten
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genoom
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Ciguatera gevallen
Postzegels, munten, diversen.
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Ciguatera gevallen
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Schattingen op basis van modellen
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Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | 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). |
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Trofisch niveau (Ref. 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
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Kwetsbaarheid van de visserij (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |