Peces Criollos - Freshwater Fishes of Argentina Peces Criollos - Freshwater Fishes of Argentina
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Hoplias argentinensis - first record from Uruguay

Hoplias argentinensis
Hoplias argentinensis
(photo: from publication)

first record from Uruguay:
Hoplias argentinensis Rosso et al., 2018

published in:
Paullier, S., J. Bessonart, E. Brum & M. Loureiro (2019):
Lista de las species de peces de la cuenca del río Queguay, río Uruguay bajo.
Boletín de la Sociedad Zoológica del Uruguay 28 (2): 66-78

abstract (from publication):
The Queguay river is one of the main tributaries of the lower Uruguay river basin. Large wetlands and riparian forest develop at the confluence of its main affluents and according to their biodiversity and ecosystem functions, they have been included in the National Protected Areas System, under the name 'Montes del Queguay'. At a national scale the basin is included in two ecoregions: the Basaltic Slope and the Western Sedimentary Basin. Except for an unsupported listing in scientific collections, there is no documented information about its ichthyofauna. Therefore, the objective of this work was to prepare an updated list of the fish species in the Queguay River basin. Considering all sources of information, a total of 97 species were registered for the basin, corresponding to 61 genera, 28 families and nine orders. The diversity of species found was similar to that of the largest tributary of the Lower Uruguay ecoregion, the Rio Negro basin. The main migratory species of the La Plata basin stand out, as well as a species of annual fish endemic to the wetlands of the basin, and the presence of an invasive exotic species (Cyprinus carpio).

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