Teleostei (teleosts) >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: Cynopoecilus: Greek, kyon = dog + Greek, odous = teeth + Greek, poikilos = with a lot of colours (Ref. 45335).
More on author: Regan.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; non-migratory. Subtropical; 18°C - 24°C (Ref. 2059)
South America: Brazil and Uruguay.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 4.3 cm SL male/unsexed; (Ref. 98301); 3.5 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 0; Dorsal soft rays (total): 16 - 19; Anal spines: 0; Anal soft rays: 22 - 25; Vertebrae: 28 - 30. Having faint spots restricted to the dorsal portion of the fin or caudal spots absent; pectoral fin length of male 18.6-22.6% SL; longitudinal rows of spots on body of male pale golden to greenish golden anteriorly and light blue posteriorly; pelvic fin length 6.8-8.3% SL in male, 6.4-7.5% in female; dark brown irregular marks on dorsum below dorsal fin of male, dorsal head profile of adult male slightly concave; lateral body stripes of male dark reddish brown; caudal fin or male without a bright blue zone along posterior margin of the fin; 11-14 supraorbital neuromasts and 1-3 neuromasts per scale of the lateral line (Ref. 42931).
Bottom spawner, 2 months incubation. Is very difficult to maintain in aquarium (Ref. 27139).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Costa, W.J.E.M., 2002. The annual fish genus Cynopoecilus (Cyprinodontiformes: Rivulidae): taxonomic revision, with descriptions of four new species. Ichthyol. Explor. Freshwat. 13(1):11-24. (Ref. 42931)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
Tools
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00490 (0.00188 - 0.01275), b=3.09 (2.86 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Generation time: 0.2 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (K=6).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
