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); albertinensis: The specific name, albertinensis, is given in reference to the Albertine Rift, in which valley the species is found in the northern Lake Albert basin and extending into the Albert Nile drainage; an adjective derived from the geographical name (Ref. 123150).
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού βενθοπελαγικό; pH range: 7.8 - 8.5. Tropical; 29°C - 34°C (Ref. 123150)
Africa: ephemeral pools and marshes of Albert Nile drainage and small river systems into north-eastern part of Lake Albert in northwestern Uganda (Ref. 123150).
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 5.0 cm SL αρσενικό/απροσδιόριστο; (Ref. 123150)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 0; Μαλακές ραχιαίες ακτίνες (συνολικά) : 15 - 18; Εδρικές άκανθες: 0; Μαλακές εδρικές ακτίνες: 16 - 18. Diagnosis: Nothobranchius albertinensis is distinguished from all other species of the genus, with the exception of N. ugandensis, by the following combination of characters in males: body colouration light blue with red-brown scale margins; frontal part of head and snout red-brown and throat light blue; caudal fin uniform red (Ref. 123150). Furthermore, it differs from N. ugandensis by a yellow dorsal fin with red-brown stripes in medial part parallel to fin rays vs. light blue with red-brown spots and irregular stripes perpendicular to fin rays; yellow anal fin without markings vs. light blue and occasionally with red-brown spots; anal fin positioned anterior to dorsal fin, mean preanal length 59.8% of standard length and mean predorsal length 60.7% of standard length vs. posteriorly positioned with 60.9% of standard length and 60.2% respectively in N. ugandensis; and greater anal-fin base length, 22.5-25.9% of standard length vs. 19.3-22.2% (Ref. 123150).
Found in ephemeral pools and marshes as well as small river systems (Ref. 123150); the type locality is an isolated pool, about 1 m at the deepest point, in an area that was overgrown by reeds (Ref. 123150).
Life cycle and mating behavior
Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες
Nagy, B., B.R. Watters, P.D.W. van der Merwe, F.P.D. Cotterill and D.U. Bellstedt, 2020. Review of the Nothobranchius ugandensis species group from the inland plateau of eastern Africa with descriptions of six new species (Teleostei: Nothobranchiidae). Ichthyol. Explor. Freshwat. 30(1):21-73. (Ref. 123150)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
αλιεία:
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=0.01000 (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).
