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> Characiformes (Characins) > Characidae (Characins; tetras) > Stethaprioninae
Etymology: Gymnocorymbus: Greek, gymnos = naked + Greek,korymb = summit, cluster of fruits and flowers (Ref. 45335).
Eponymy: Stephen Van Rensselaer Thayer (1847–1871) was one of Nathaniel Thayer’s sons (see above). He went on the Thayer Expedition as a volunteer. The holotype of this species was collected during that expedition. (Ref. 128868), visit book page.
More on author: Eigenmann.

Issue
See Eigenmann, 1918:125 for description.

Environment: milieu / climate zone / depth range / distribution range Ecología

; agua dulce pelágico; pH range: 5.5 - 7.5; dH range: ? - 20. Tropical; 23°C - 27°C (Ref. 1672)

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

South America: upper Amazon River basin (Bolivia and Colombia). Recorded from the Orinoco River, Guyana, and Trinidad and Tobago.

Tamaño / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 7.4 cm SL macho / no sexado; (Ref. 121647); peso máximo publicado: 17.00 g (Ref. 121647)

Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Main reference Upload your references | Referencias | Coordinador | Colaboradores

Lima, F.C.T., L.R. Malabarba, P.A. Buckup, J.F. Pezzi da Silva, R.P. Vari, A. Harold, R. Benine, O.T. Oyakawa, C.S. Pavanelli, N.A. Menezes, C.A.S. Lucena, M.C.S.L. Malabarba, Z.M.S. Lucena, R.E. Reis, F. Langeani, C. Moreira et al. …, 2003. Genera Incertae Sedis in Characidae. p. 106-168. 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. 38376)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 04 March 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesquerías: comercial; Acuario: Comercial

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Trophic ecology
componentes alimenticios
Composición de la dieta
consumo de alimento
Food rations
Despredadores

Ecology
Ecología

Population dynamics
Coeficiente del crecimiento para
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Reclutamiento
Abundancia

Life cycle
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Fecundidad
Puesta
Spawning aggregations
Huevos
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Larva
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Distribution
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Anatomy
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Brain
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Physiology
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Toxicity (LC50s)

Genetics
Genética
Heterozygosity
heritabilidad

Human related
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Stamps, coins, misc.

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01905 (0.01055 - 0.03442), b=3.07 (2.91 - 3.23), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Nivel trófico (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Resiliencia (Ref. 120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).

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

Price category (Ref. 80766): Unknown.

Gymnocorymbus thayeri Eigenmann, 1908