Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335); hoermanni: The specific name is given in honour of Alwin Hörmann from Kühnhausen in Germany, a well-known aquarist and breeder of Nothobranchius fishes; he maintained and propagated the wild specimens collected in the field by Werner Krammer, during the field trip organized by Sonja and Holger Hengstler; without his dedication and expertise, the population from the type locality would not have been available for researchers and others; a noun in genitive case (Ref. 123150).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; pH range: 6.5 - 8.6. Tropical; 23°C - 23°C (Ref. 123150)
Africa: Mhlawa system of upper Wembere drainage and Wala system of Malagarasi drainage, in Tanzania (Ref. 123150).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 5.1 cm SL male/unsexed; (Ref. 123150)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 0; Dorsal soft rays (total): 16 - 17; Anal spines: 0; Anal soft rays: 15 - 16. Diagnosis: Nothobranchius hoermanni belongs to the N. ugandensis species group presenting the following combination of characters in males: body colouration light blue with red to 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 hoermanni differs from all other members of the N. ugandensis species group by a red throat; light blue anal fin with red-brown spots and stripes proximally and medially, and broad light blue distal zone without markings; pectoral fin hyaline with red-brown stripes parallel to fin rays; exposed branchiostegal membrane red-brown, with cream distal margin; suborbital depth 28% of head length vs. 19-27% (Ref. 123150).
The type locality is a shallow ephemeral pool with a diameter of about 10 m and about 50 cm at the deepest point; the water was turbid, the bottom of the pool not visible (Ref. 123150).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
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
Fisheries:
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Internet sources
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).
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
