Classificazione / Nomi
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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); constellatus: Name from Latin 'constellatus' meaning studded with stars, referrring to the arrangement of white bright spots in the dorsolateral region of the body; an adjective in masculine form.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce benthopelagico. Tropical
South America: Brazil.
Dimensione / Peso / Età
Maturità: Lm ? range ? - ? cm
Max length : 13.7 cm SL maschio/sesso non determinato; (Ref. 118066)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 13 - 15; Raggi dorsali molli (totale) : 8 - 11; Spine anali: 3; Raggi anali molli: 8 - 9; Vertebre: 29. This species is distinguished from its congeners by the following characters: presence of a very large midlateral spot, where each scale forming the spot usually bears one large white dot; in adult males, midlateral spot is almost reaching the dorsal-fin base being about 4-5 scales wide and 4 scales tall (vs. with two or three scale rows distance from the dorsal fin base in other species); the midlateral spot of females and juveniles is also large, but usually not extending above the upper lateral line; upper lateral line with 18-21 scales, usually 18-20 (vs.13-19 in all other species) (Ref. 118066).
Cross section: compressed.
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
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)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
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Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00918 - 0.04336), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Resilienza (Fonte Biblio.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Vulnerabilità della pesca (Ref.
59153): Low vulnerability (10 of 100).
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