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Teleostei (teleosts) > 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 Ecology

Freshwater; benthopelagic. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: Paraná River basin, in tributaries of the Paraná River between the Monday River and Guaia, Paraguay and Brazil.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 9.8 cm SL male/unsexed; (Ref. 36377)

Short description Identification keys | Morphology | Morphometrics

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 Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Both parents take care of the fry.

Main reference Upload your references | References | Coordinator : Kullander, Sven O. | Collaborators

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: Version 2024-1)

Near Threatened (NT) (B1b(iii)+2b(iii)); Date assessed: 19 November 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial; aquarium: commercial

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics

Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
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Anatomy
Gill area
Brain
Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetics
Heterozygosity
Heritability

Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.

Outreach
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Taxonomy
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References
References

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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.02512 (0.01198 - 0.05266), b=2.99 (2.81 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.5 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Price category (Ref. 80766): Unknown.

Gymnogeophagus setequedas Reis, Malabarba & Pavanelli, 1992