Miscelánea 12
Diversidad de Rotíferos Monogonta del Litoral Fluvial Argentino
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Abstract
Current knowledge on rotifer fauna of the Argentinean Fluvial Litoral is commented. This study mainly deals with Paraná River fauna, because the knowledge about Uruguay River is scarce. This contribution is based upon information published in taxonomic and faunistic papers and the author’s unpublished data.
Rotifer fauna of the Paraná River includes nearly 250 morphospecies, belonging to 21 families and 44 genera.
The most diverse genera are Lecane, Trichocerca and Brachionus. In the flood-plain shallow lakes above 225 species were found, while 113 species were recorded in the main channel. The local diversity can be variable, depending on location of the lakes in the plain, connection to the river, environmental complexity, biotic interactions and methodological aspects.
