Nothobranchius wattersi Ng'oma, Valdesalici, Reichwald & Cellerino, 2013
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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); wattersi: The species is named in dedication to B.R. Watters, who has studied Malawi Nothobranchius and their biotopes extensively, and has also made significant contributions to the further understanding of the ecology of Nothobranchius fishes (Ref. 92979).
Eponymy: Dr Brian R Watters is a South African Canadian geologist and killifish enthusiast who is an editor of the Journal of the American Killifish Association. [...] (Ref. 128868), visit book page.
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335); wattersi: The species is named in dedication to B.R. Watters, who has studied Malawi Nothobranchius and their biotopes extensively, and has also made significant contributions to the further understanding of the ecology of Nothobranchius fishes (Ref. 92979).
Eponymy: Dr Brian R Watters is a South African Canadian geologist and killifish enthusiast who is an editor of the Journal of the American Killifish Association. [...] (Ref. 128868), visit book page.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie
; zoet water pelagisch. Tropical
Verspreiding Gebieden | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri
Africa: ephemeral pools, swamps and ditches on the floodplains of rivers associated with central and southern sections of Lake Malawi, and areas around Lake Malombe and the upper Shire River region (Ref. 92979).
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 5.3 cm SL mannelijk / geslacht onbekend; (Ref. 92979); 4.8 cm SL (female)
Max length : 5.3 cm SL mannelijk / geslacht onbekend; (Ref. 92979); 4.8 cm SL (female)
Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 16 - 17; Anale stekels: 0; Anale zachte stralen: 17 - 18; Wervels: 27 - 28. Diagnosis: Nothobranchius wattersi males are similar to N. kirki and differing from all other species of the genus by the following combination of characters: red colouration on caudal fin and part of caudal peduncle, anal fin red with a blue-green proximal portion, dorsal fin with light blue margin; pectoral, caudal and anal fins with black margin (Ref. 92979). It is readily distinguished from N. kirki by light blue colouration in scale centres, plain deep red colouration on caudal and distal portion of anal fin, vermiculated blue pattern on anal fin, dorsal fin blue-green, anal fin more rounded, dorsal-fin base shorter, prepelvic to preanal distance longer and head longer, with a more flattened to slightly concave shape on the upper head surface relative to N. kirki.
Body shape (shape guide): fusiform / normal.
Body shape (shape guide): fusiform / normal.
Nothobranchius wattersi occupies seasonal water pools that are briefly connected owing to seasonal flooding by summer rains and isolated later in the season before eventually desiccating; these pools are characterized by fine black or grey-coloured clay-rich soils typically comprising silt, mud and fine sand, roughly in that order of abundance, and eggs are laid in the uppermost layers of this substratum (Ref. 92979).
Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Hoofdreferentie
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Ng'oma, E., S. Valdesalici, K. Reichwald and A. Cellerino, 2013. Genetic and morphological studies of Nothobranchius (Cyprinodontiformes) from Malawi with description of Nothobranchius wattersi sp. nov. J. Fish Biol. 82(1):165-188. (Ref. 92979)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevoelig (NT) (B1b(iii)+2b(iii)); Date assessed: 21 August 2018
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
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Voedsel (prooien)
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Lengtefrequenties
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genoom
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Ciguatera gevallen
Postzegels, munten, diversen.
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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=0.01122 (0.00476 - 0.02645), b=2.94 (2.74 - 3.14), 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). 🛈 |