The Tarumã Açu River ( pt, Igarapé Tarumã Açu) is a river in the state of
Amazonas, Brazil.
It is a left tributary of the
Rio Negro, which it enters just west of the city of
Manaus
Manaus () is the capital and largest city of the Brazilian state of Amazonas. It is the seventh-largest city in Brazil, with an estimated 2020 population of 2,219,580 distributed over a land area of about . Located at the east center of the s ...
.
Course
The Tarumã Açu River originates with a spring in the community of Nova Canaã, at kilometre 40 of the
BR-174
BR-174 is a federal highway of Brazil. The road connects Cáceres to Pacaraima on the Venezuelan border.
It is the only road connection of the state of Roraima with the rest of the country. 458 kilometres are under construction, and there is no ...
highway.
It drains the east part of the Tarumã Açu – Tarumã Mirim section of the
Rio Negro Left Bank Environmental Protection Area
The Rio Negro Left Bank Environmental Protection Area ( pt, Área de Proteção Ambiental Margem Esquerda do Rio Negro) is an environmental protection area in the state of Amazonas, Brazil.
It protects an area of Amazon rainforest on the left ba ...
, which is mainly covered by dense rainforest but has areas of open tropical forest and
campinarana.
The lower section of the river corresponds to the western boundary of the
Manaus
Manaus () is the capital and largest city of the Brazilian state of Amazonas. It is the seventh-largest city in Brazil, with an estimated 2020 population of 2,219,580 distributed over a land area of about . Located at the east center of the s ...
urban area.
Several of its left bank tributaries originate in the
Adolfo Ducke Forest Reserve and cross the north and west zones of Manaus.
The urban area tributaries are the Igarapé Leão, Igarapé do Mariano, Igarapé do Bolívia, which originate in the Ducke reserve, and the Igarapé do Tarumãzinho, which is completely contained in the Bairro do Tarumã.
The Tarumã Açu and
Tarumã Mirim are
blackwater river
A blackwater river is a type of river with a slow-moving channel flowing through forested swamps or wetlands. As vegetation decays, tannins leach into the water, making a transparent, acidic water that is darkly stained, resembling black te ...
s, acidic and low in minerals.
Water levels vary by , with highest levels in June.
See also
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List of rivers of Amazonas
Notes
Sources
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{{DEFAULTSORT:Taruma Acu River
Rio Negro (Amazon)
Rivers of Amazonas (Brazilian state)