Una visión bentónica de arroyos y ríos pampeanos. Biología Acuática

RODRIGUES CAPÍTULO; C. OCON; M. TANGORRA

Biología Acuática (versión electrónica)

Versión electrónica (ILPLA)

Lugar: La Plata, Argentina; Año: 2003 vol. 21 p. 1 - 17

1668-4869

In this paper, tributaries of the Río Paraná and Río de la Plata rivers (Arrecifes and matanza-Riachuelo rivers, El Gato, El Pescado, Juan Blanco and Buñirigo streams) were analysed. The System of Río Salado (Samborombón and Salado rivers, Las Garzas stream) and streams of Tandilla hills north-eastern slope stream (Napaleofú, Langueyú, Tandileofú, Chelforó and Viviratá) were studied by analysing the zoobenthic community. Several streasm tributaries of Río de la Plata river affected (to different extent) by urban and industrial perturbations and they were compared with pristine streams of the region. Diversity and Biotic Indices were applied in the streams. Tolerant species and slow scores of the both indices were mainly registered in Matanza-Riachuelo river and El Gato stream,and the more sensitive taxa were identified in ElPescado ad Juan Blanco streams. In Samborombón river there were salinity changes with taxa adapted to this condiction (Polychaeta, Chasmagnatus granulata, Cyrtograpsus angulata, Cirripedia).