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); elucens: The specific name elucens is a Latin participial adjective meaning 'shining out' and is given with reference to the distinctive light blue subdistal band in the anal and caudal fins, contrasting and shining out of the overall dark colouration of body and fins of the males (Ref. 123810).
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού βενθοπελαγικό. Tropical
Africa: Uganda.
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 3.9 cm SL αρσενικό/απροσδιόριστο; (Ref. 123810)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 0; Μαλακές ραχιαίες ακτίνες (συνολικά) : 16 - 18; Εδρικές άκανθες: 0; Μαλακές εδρικές ακτίνες: 17 - 19. Diagnosis: Nothobranchius elucens is distinguished from all other members of the genus by the following characters in males: body colouration golden-grey with brown scale margins creating irregular vertical stripes on trunk, anal fin yellow with brown spots proximally, with slender brown median band, followed by a slender light blue subdistal band and a slender black distal band; caudal fin brown proximally and medially, followed by a slender light blue subdistal band and a slender black distal band; dorsal fin golden with irregular brown blotches and stripes, with narrow light blue subdistal band and narrow black distal band (Ref. 123810). Furthermore, it differs from N. taiti by the morphometric characters of having a smaller head length of 29.5-33.1% of standard length vs. 35.0-38.6%, smaller prepectoral length of 31.2-33.9% of standard length vs. 34.2-38.6%, greater head depth of 81-87% of head length vs. 71-80%, greater interorbital width of 43-49% of head length vs. 31-40%, and greater caudal peduncle length of 145-152% of its depth vs. 134-143% (Ref. 123810).
Found in an isolated pool in a shallow depression on a floodplain (Ref. 123810). It is a micropredator, feeding on small aquatic crustaceans, worms, insect larvae and other zooplankton (Ref. 123810). Nothobranchius elucens is recommended to be listed as vulnerable (Ref. 123810).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Nagy, B., 2021. Nothobranchius elucens, a new species of seasonal killifish from the upper Nile drainage in Uganda (Cyprinodontiformes: Nothobranchiidae). Zootaxa 4915(1):133-147. (Ref. 123810)
IUCN Red List Status (Ref. 130435: Version 2024-1)
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 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00472 - 0.02669), b=2.94 (2.74 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-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).
