3 RESULTS
3.1 Net Discharge (Qnet) and Current Velocity (V)
Qnet was monitored in five stations during the dry season and in four stations during the rainy season (Figure 2). Qnet was higher in Urucurituba Channel during the dry season, it recorded the highest value at URU1 station (768 m³s-1). The second highest Qnet was observed at URU2 station (548 m³s-1). Gurijuba River mouth presented the third highest Qnet (409 m³s-1). Araguari River (ARA1) and Igarapé Novo (IGN) recorded the lowest Qnet values - 158 m³s-1 and -47 m³s-1, respectively. Negative discharge represents the resulting current in reverse, downstream to upstream IGN station. In other words, water flow into the section was higher than its outflow during the dry season.