Copacá River

The Copacá River (Portuguese: Rio Copacá) is a river of Amazonas, Brazil. It is a right tributary of the Uarini River.

The Copacá River defines the eastern boundary of the 187,982 hectares (464,510 acres) Baixo Juruá Extractive Reserve, created in 2001. The Copacá is a 25 metres (82 ft) wide river that lies within the eastern limit of the reserve. The floating litter banks of the river are home to a variety of allochthonous insectivore species of fish, particularly of the genera Microglanis and Phenacorhamdia.