Ecohydrology of the aquatic habitats in the middle Paraná river.

EDMUNDO DRAGO,; PAIRA, A.R.; ALICIA LOTESTE,; INES EZCURRA,; MARCHESE M; JULIETA PARMA,; LILIANA ROSSI,

Manaus

Congreso; International Symposium - Hydrological and Geochemical Processes in Large River Basins; 2001

The hydrogeomorphological and sedimentological variations in the alluvial valley o f the Paraná River exert a commandin g role o n thecomposition an d structure o f the aquatic communities.T h e physical an d chemical structure o f the habitats in the mino rchannels o f the floodplain drives the large variations in thecomposition an d distribution o f benthic macroinvertebrates and fishes