The Middle Paraná River: Limnology of a Subtropical Wetland

1 2 2,3 MARTÍN H. IRIONDO , JUAN CÉSAR PAGGI , AND MARÍA JULIETA PARMA 2 The great Paraná basin (2,600,000 km) covers a large portion of the Neotropical Realm, extending from the Andes to the Atlantic coast and c- necting the central regions of South America along 2,200 km in a north–south direction. Most of the basin is under subtropical climates, which range from desertic in the west to humid in the east. The Middle Paraná is a broad, complex floodplain extending 600 km in the heart of th...