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); seegersi: The species is named in dedication to its first collector, the enthusiastic aquarist and ichthyologist Lothar Seegers, Germany (Ref. 87047).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
Africa: seasonal pools in the drainage system of Wulua and Mungu Rivers, Malagarasi River basin, in Tanzania (Ref. 87047, 98818).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 6.2 cm SL male/unsexed; (Ref. 87047); 5.5 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 0; Dorsal soft rays (total): 16 - 17; Anal spines: 0; Anal soft rays: 17 - 18; Vertebrae: 31 - 32. Diagnosis: Males of Nothobranchius seegersi share with the other members of the Nothobranchius neumanni species group a combination of colouration characters, which distinguish them from all other species of the genus: caudal fin red or partially red; pectoral fin hyaline; anal fin yellow with red stripes, proximal portion light bluish grey (Ref. 87047). It is distinguihed from N. neumanni by bright light blue scales, vs. pale bluish grey; an irregular pattern formed by red scale margins on lateral body and head vs. uniform; and a single, blue male colour morph, vs. two colour morphs, blue and red; both male and female of N. seegersi have a relatively higher predorsal length compared to N. neumanni, 60.3-68.8 vs. 54.8-61.0% of standard length in males, 68.0-68.4 vs. 57.1-64.6% of standard length in females (Ref. 87047). Based on osteological characters, Nothobranchius seegersi differs from N. neumanni by having a conspicuously longer lateral process of the post-temporal, and by having short antero-dorsal process of the urohyal (Ref. 87047).
This species is found in seasonal pools; the type locality was at the time of collection a small and very shallow pond, about 3x5 m wide and 0.25 m deep, without aquatic vegetation, in the open woodland; the water was brown and very turbid (Ref. 87047).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Valdesalici, S. and K. Kardashev, 2011. Nothobranchius seegersi (Cyprinodontiformes: Nothobranchiidae), a new annual killifish from the Malagarasi River drainage, Tanzania. Bonn Zool. Bull. 60(1):89-93. (Ref. 87047)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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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=0.01096 (0.00449 - 0.02680), b=2.92 (2.71 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
