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Teleostei (teleosts) > Characiformes (Characins) > Characidae (Characins; tetras) > Stevardiinae
Etymology: Bryconamericus: Greek, bryko = to bite + America, latinized (Ref. 45335); guyanensis: The species name is derived from its distribution (Ref. 84136).
More on authors: Zarske, Le & BailGéry.

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

Freshwater; pelagic. Tropical

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

South America: French Guyana. Collected in all river basins of French Guyana (see also Planquette et al., 1996, page 241) (Ref. 84136).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 4.3 cm male/unsexed; (Ref. 84136)

Short description Identification keys | Morphology | Morphometrics

A relatively small species (largest known specimen 56.7 mm SL) of the genus Bryconamericus Eigenmann, 1907 (type-species: B. exodon Eigenmann, 1907). The new species is characterized by the following features: (1) body depth relatively low (3.49 – 4.16), (2) anal-fin with 19 – 21 branched rays, (3) 17 – 21 setiform gill-rakers, (4) 38 – 41 scales in a longitudinal row, (5) 4½ – 5/1/3 transversal scales, (6) 37 – 40 vertebrae (total), (7) two to three tri- to quincuspid maxillary teeth, and (8) premaxilla in the outer row with four to five (mostly five) tri- to quincuspid teeth which are implanted in a irregularly row (Ref. 84136).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Zarske, A., P.-Y. Le Bail and J. Géry, 2010. New and poorly known Characiform fishes (Teleostei: Characiformes: Characidae) from French Guyana. A new Tetra of the genus Bryconamericus. Vertebrate Zoology 60(1):3-10. (Ref. 84136)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 14 December 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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More information

Trophic ecology
Food items
Diet composition
Food consumption
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Predators

Ecology
Ecology

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

Life cycle
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Maturity
Maturity/Gills rel.
Fecundity
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Eggs
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Distribution
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Anatomy
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Physiology
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Nutrients
Oxygen consumption
Swimming type
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Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

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Genetics
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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00955 (0.00407 - 0.02241), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 2.6 ±0.3 se; based on size and trophs of closest relatives

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

Bryconamericus guyanensis Zarske, Le Bail & Géry, 2010