Muaná River

The Muaná River is a river of Marajó, which itself is an island in the mouth of the Amazon. It is a right branch of the Atuá River and flows in a southerly direction before entering the Pará River opposite the mouth of the Tocantins River. Although the water levels of the Muaná depend strongly on the tides in the Amazon Delta, it is navigable for large boats through all of its length.
The town of Muaná is located on the right bank of the river, some upstream from its mouth. The Patauateua River and the Pitauã River join the Muaná here as right tributaries.
Fishery is concentrated near the mouth of the river, often with the use of traditional fish traps called matapi and cacuri. Species commonly caught are hake, piraíba, piramutaba, mapará and Palaemon shrimp. Traditional agriculture is an important economic activity along the river, as is the collection of açaí. The activity of pottery has mostly been abandoned.