El estuario del Plata: donde el río se encuentra con el mar

The Rio de la Plata estuary is one of the largest estuarine environments of South America. It is characterized by a two-layer vertical salinity distribution and the existence of water masses convergence zones (fronts). Oceanographic scenario greatly influence the biology of the planktonic organisms that live in the water column, the benthic organisms that inhabit the soft sediment bottoms of the estuary, and the fishes, which show a differential degree of penetration into the diluted water of the estuary. Short and frequent events of strong weastward winds ('sudestada') alter completely the oceanographic conditions greatly influencing the especies ecology. Biological production of the estuary is high, and most of their organisms have a marine heritage.