Prime fishing locations are typically found along the main river channel near significant structure. Areas with submerged logs, fallen trees (galhadas), undercut clay banks, and the mouths of smaller tributaries are always productive. The confluence zone with the Rio Negro is a major hotspot, as the mixing waters attract baitfish and predators. Isolated lagoons and oxbow lakes connected to the river during high water can hold large concentrations of fish as the waters recede.