Classification / Names
Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335); venustus: The specific name venustus is a Latin adjective meaning attractive, charming, graceful, pretty, and is given with reference to the attractive appearance and distinctive colouration of the males (Ref. 123150).
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopélagique; pH range: 7.4 - 7.4. Tropical; 25°C - 25°C (Ref. 123150)
Africa: ephemeral pools and marshes associated with smaller stream systems of Lake Victoria basin in northwestern Tanzania (Ref. 123150).
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 3.6 cm SL mâle / non sexé; (Ref. 123150)
Description synthétique
Morphologie | Morphométrie
Épines dorsales (Total): 0; Rayons mous dorsaux (Total): 14-16; Épines anales 0; Rayons mous anaux: 14 - 16. Diagnosis: Nothobranchius venustus belongs to the N. ugandensis species group presenting the following combination of characters in males: body colouration light blue with red or red-brown scale margins; frontal part of head red-brown and throat light blue or red; caudal fin uniform red; anal fin light blue or yellow with red-brown spotted pattern (Ref. 123150). Nothobranchius venustus differs from all other members of the N. ugandensis species group by a dorsal fin with a narrow light blue subdistal band and a narrow red-brown to black distal band; an anal fin light blue with irregular red-brown stripes perpendicular to fin rays proximally and medially; and orange with red-brown stripes parallel to fin rays in distal zone; and a dorsal-fin base length 20.4-23.2% of standard length vs. 23.4-28.7% (Ref. 123150).
Found in a temporary pool about 10 m wide, more than 20 m long, and about 1 m at the deepest point; the water was turbid, the bottom of the pool not visible (Ref. 123150).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries:
Plus d'informations
Noms communsSynonymesMétabolismePrédateursÉcotoxicologieReproductionMaturitéFraiRassemblement de ponteFéconditéŒufsDéveloppement de l'œuf
Taille/ÂgeCroissanceLongueur-poidsLongueur-longueurFréquences de longueursMorphométrieMorphologieLarvesDynamique des populations larvairesRecrutementAbondanceBRUVS
RéférencesAquacultureProfil d'aquacultureSouchesGénétiqueElectrophoresesHéritabilitéPathologiesTraitementNutrientsMass conversion
CollaborateursImagesStamps, Coins Misc.SonsCiguateraVitesseType de nageSurface branchialeOtolithesCerveauxVision
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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).
Niveau trophique (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
