Classification / 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
Οικολογία
; Γλυκού νερού βενθοπελαγικό. Tropical
Africa: Nkululu River and Limba Limba River, Malagarasi River basin, in Tanzania (Ref. 116792, 123150).
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 5.1 cm SL αρσενικό/απροσδιόριστο; (Ref. 116792)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 0; Μαλακές ραχιαίες ακτίνες (συνολικά) : 16 - 18; Εδρικές άκανθες: 0; Μαλακές εδρικές ακτίνες: 16 - 18; Σπόνδυλοι: 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).
Life cycle and mating behavior
Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες
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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (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).
Τροφικό Επίπεδο (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
