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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).
More on authors: Reis, Malabarba & Pavanelli.
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Nước ngọt Sống nổi và đáy. Tropical
South America: Paraná River basin, in tributaries of the Paraná River between the Monday River and Guaia, Paraguay and Brazil.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.8 cm SL con đực/không giới tính; (Ref. 36377)
Can be easily differentiated from most Gymnogeophagus species by the possession of 23 to 25 scales in a longitudinal series (ranging from 26 to 29 in G. gymnogenys,
G. labiatus, G. balzanii, G. australis and G. lacustris. It differs from G. meridionalis by the absence of the small roundish dots on anal, dorsal and caudal fins. It is distinguished from G. rhabdotus by the caudal fin color pattern which lacks the small stripes or elongate dots of G. rhabdotus. It also presents an inconspicuous, darker pigmentation on the longitudinal series of scales between upper and lower lateral lines, especially on smaller specimens; a slightly reticulated aspect on larger specimens; and a conspicuous, narrow dark band on the margin of dorsal-fin membrane of larger specimens, characters not present in G. rhabdatus and G. meridianalis. Bright blue longitudinal stripes laterally on the flanks, commonly present in G. rhabdatus and G. meridianalis, are hardly visible in alcohol preserved specimens of G. setequedas (Ref. 26702).
Life cycle and mating behavior
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
Both parents take care of the fry.
Kullander, S.O., 2003. Cichlidae (Cichlids). p. 605-654. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36377)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Các nghề cá: Tính thương mại; Bể nuôi cá: Tính thương mại
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [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).
Mức dinh dưỡng (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Thích nghi nhanh (Ref.
120179): Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).