Common names from other countries
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Geophaginae
Etymology: Gymnogeophagus: Greek, gymnos = naked + Greek, gea = the earth + Greek, phaegein, to eat (Ref. 45335); mekinos: Name from Greek 'mekinos' meaning prolonged, referring to the comparatively elongated body of this species; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch. Tropical
South America: rio Negro and rio Uruguay.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 10.5 cm SL mannelijk / geslacht onbekend; (Ref. 118066)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 13 - 15; Dorsale zachte stralen (totaal) : 9 - 11; Anale stekels: 3; Anale zachte stralen: 8 - 10. This species is distinguished from its congeners, except G. gymnogenysgymnogenys by its more elongate body (body depth 34.9-38.3% SL, mean = 36.7 vs. 38.6-44.2 % SL, mean = 40.6 in gymnogenys specimens larger than 6.5 cm SL), and by the continuous iridescent olivaceous coloration of males (vs. clearly demarcated iridescent blue spots on the center of each scale) (Ref. 118066).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Malabarba, L.R., M.C. Malabarba and R.E. Reis, 2015. Descriptions of five new species of the Neotropical cichlid genus Gymnogeophagus Miranda Ribeiro, 1918 (Teleostei: Cichliformes) from the rio Uruguay drainage. Neotrop. Ichthyol. 13(4):637-662. (Ref. 118066)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
CITES (Ref. 131153)
Not Evaluated
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00926 - 0.04297), b=3.01 (2.83 - 3.19), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).