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> Characiformes (Characins) > Characidae (Characins; tetras) > Stethaprioninae
Etymology: Oligosarcus: Greek, oligos = small + Greek arkos = anus (Ref. 45335).

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

; agua dulce bentopelágico. Subtropical

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

South America: Argentina.

Tamaño / Peso / Age

Maturity: L_m ? range ? - ? cm

Short description Claves de identificación | Morfología | Morfometría

Distinguished by having the following combination of characters: two distinct premaxillary rows of teeth; tricuspidate and pentacuspidate teeth on dentary and posterior premaxillary row; presence of a row of 3-4 tricuspidate to conical ectopterygoid teeth; anal fin with v-vi,21-23 anal-fin rays; and 41-42 perforated scales on lateral line.

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

Main reference Upload your references | Referencias | Coordinador | Colaboradores

Mirande, J.M., G. Aguilera and M. Azpelicueta, 2011. A threatened new species of Oligosarcus and its phylogenetic relationships, with comments on Astyanacinus (Teleostei: Characidae). Zootaxa 2994:1-20. (Ref. 87714)

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

Endangered (EN) (B1ab(iii)+2ab(iii)); Date assessed: 14 December 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Más información

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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Maturity/Gills rel.
Fecundidad
Puesta
Spawning aggregations
Huevos
Egg development
Larva
Dinámica larvaria

Distribution
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BRUVS - Videos

Anatomy
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Brain
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Physiology
Body composition
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Tipo de natación
Velocidad de natación
Visual pigments
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Diseases & Parasites
Toxicity (LC50s)

Genetics
Genética
Heterozygosity
heritabilidad

Human related
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Perfiles de acuicultura
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Stamps, coins, misc.

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Taxonomy
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References
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Summary page | Datos específicos | Nombres comunes | Photos

Fuentes de Internet

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=0.00933 (0.00418 - 0.02084), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Nivel trófico (Ref. 69278): 4.0 ±0.7 se; based on size and trophs of closest relatives

Resiliencia (Ref. 120179): Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (11 of 100).

Oligosarcus itau Mirande, Aguilera & Azpelicueta, 2011