Classificatie / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335); streltsovi: The species is named in honour of Sergey Streltsov, who collected the type specimens (Ref. 116792).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch. Tropical
Africa: Nkululu River and Limba Limba River, Malagarasi River basin, in Tanzania (Ref. 116792, 123150).
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 5.1 cm SL mannelijk / geslacht onbekend; (Ref. 116792)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 16 - 18; Anale stekels: 0; Anale zachte stralen: 16 - 18; Wervels: 32. Diagnosis: Nothobranchius streltsovi males are similar to other members of the N. ugandensis species group in possessing light blue scales with a broad, irregular, reticulated pattern on the body, oblique red or orange bars on the head and dorsum, yellow or blue anal fin, large vivid red spots on the dorsal and anal fins, rounded head with slightly concave to nearly straight dorsal profile, convex predorsal profile from nape to posterior extremity of dorsal-fin base, and variable cephalic squamation; males can be distinguished from all other species of this species group by the following combination of characters: scale margins orange; caudal fin orange, spotted proximally; pectoral fin spotted proximally; anal and pelvic fins with a pattern of red dots, light blue proximally, yellow or creamy white distally; seven branchiostegal rays; 31-34 longitudinal scales; 14-16 transverse scales; 15-16 circumpeduncular scales; supraorbital neuromast formula 2+3+4 (Ref. 116792).
Found in an ephemeral pool located near a culvert measuring approximately 6 m x 6 m, less than 50 cm deep, and without aquatic vegetation; the water was light clay grey and slightly turbid with low conductivity, pH 7.9 and temperature approximately 26°C (Ref. 116792).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Valdesalici, S., 2016. Nothobranchius streltsovi, a new species of annual killifish with two male colour morphs from the Malagarasi drainage, central Tanzania (Teleostei: Cyprinodontiformes: Nothobranchiidae). Ichthyol. Explor. Freshwat. 27(2):153-161. (Ref. 116792)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
