The Rio Juruá is one of the great river systems of the western Amazon Basin, stretching approximately 2,682 kilometers through the heart of South America. Rising from highlands in east-central Peru, the river winds its way through the vast lowland rainforests of Brazil, ultimately joining the Solimões River in Amazonas State. With a drainage basin covering over 190,000 square kilometers and an average discharge exceeding 6,000 cubic meters per second, the Juruá is a massive, slow-moving whitewater river characterized by extraordinary sinuosity, sluggish currents, and a surrounding landscape of seasonally flooded forest. The river shares many characteristics with its neighbor, the Purus — both are defined by sweeping meanders, low banks, and a half-flooded forest environment that creates one of the most biologically rich freshwater fishing systems on Earth. The floodplain lakes, known locally as várzea lakes, are intimately connected to the main river channel and its tributaries, forming a dynamic mosaic of aquatic habitats that support an extraordinary diversity of fish species.