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Teleostei (teleosts) > Characiformes (Characins) > Characidae (Characins; tetras) > Stethaprioninae
More on author: Fowler.

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

Freshwater; benthopelagic; pH range: 7.0 - ?. Subtropical; 10°C - 30°C (Ref. 89798)

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South America: Lower tributaries of the río Uruguay (río Cuareim, río Salto, and río Negro basins), and río de La Plata (río Santa Lucía and arroyo Pand) in Uruguay. Not recorded from the Uruguay River basin in Brazil after extensive sampling for the last 20 years.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 5.1 cm SL male/unsexed; (Ref. 116916)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 10 - 12; Vertebrae: 33 - 34. Can be diagnosed by the following apomorphies: foramen in posterior region of metapterygoid forms an incomplete arch, bordered posteriorly by the hyomandibula; pectoral-fin rays bearing hooks; posterior margin of second infraorbital posteroventrally oblique and second infraorbital ventrally bordering anterior region of third infraorbital; fourth infraorbital more developed longitudinally than dorsoventrally; ascending process of premaxilla reaching just anterior end of nasal; and lateral line interrupted. Further distinguished from several characids by having 6-11 maxillary teeth and longitudinal, wavy stripes laterally on body in larger specimens (Ref. 89798).

Occurs in streams and semi-lentic and lotic shallow areas (up to 1.2 m deep) with moderate submerged vegetation and riparian vegetation composed by trees and shrubs. Streams are characterized by transparent water and bottom with mud, some stretches with sand or gravel (Ref. 89798).

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

Main reference Upload your references | References | Coordinator | Collaborators

Malabarba, L.R., V.A. Bertaco, F.R. Carvalho and T.O. Litz, 2012. Revalidation of the genus Ectrepopterus Fowler (Teleostei: Characiformes), with the redescription of its type species, E. uruguayensis. Zootaxa 3204:47-60. (Ref. 89798)

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

Near Threatened (NT) (B2b(iii)); Date assessed: 19 February 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

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Ectrepopterus uruguayensis (Fowler, 1943)