The Iriri River (Portuguese: Rio Iriri, Portuguese pronunciation: [ˈɦiu iɾiˈɾi]; Mẽbêngôkre: Kororoti, [kɔˌɾɔɾɔˈti]:40) is a large tributary of the Xingu River in Brazil, in the state of Pará. It is 1,300 km (810 mi) long making it the 116th longest river in the world (with Krishna River, India) and the 15th longest in the Amazon basin. The headwaters are the traditional home of the Panará people.
|Native name||Rio Iriri (Portuguese), Kororoti (Mẽbêngôkre):40|
|• location||Pará, Brazil|
|Length||1,100 km (680 mi)|
|• left||Curuá River, Catete River, Chiché River, Ipiranga River|
|• right||Novo River, Carajarí River, Xinxim River, Iriri Novo River|
The river rises in the 342,192 hectares (845,570 acres) Nascentes da Serra do Cachimbo Biological Reserve, a strictly protected conservation unit established in 2005 in the Serra do Cachimbo. It is one of the headwaters of the Xingu River. It flows for 900 kilometres (560 mi) before joining the Xingu, running through the 3,373,133.89 hectares (8,335,195.4 acres) Terra do Meio Ecological Station. The river varies greatly in volume depending on the season, and in the dry season include waterfalls, rocks and rapids.
The Iriri River flows through the Tapajós-Xingu moist forests ecoregion. The river is rich in fish, including many species found only here and in the Xingu. Large sections remain unexplored due to its remoteness in a region surrounded by Amazon rainforest, and sections with strong current and cataracts.
- Bleher, H. (2009), "Rio Iriri biotope, Brazil.", Practical Fishkeeping, archived from the original on 27 May 2014, retrieved 26 May 2014
- Sears, Robin, Amazon Basin - Brazil (NT0168), WWF: World Wildlife Fund, retrieved 2017-03-20
- Unidade de Conservação: Estação Ecológica da Terra do Meio (in Portuguese), MMA: Ministério do Meio Ambiente, archived from the original on 2018-10-01, retrieved 2016-05-29
- Unidade de Conservação: Reserva Biológica Nascentes Serra do Cachimbo (in Portuguese), MMA: Ministério do Meio Ambiente, retrieved 2016-05-27
- Ziesler, R.; Ardizzone, G.D. (1979), "Amazon River System", The Inland waters of Latin America, Food and Agriculture Organization of the United Nations, ISBN 92-5-000780-9, archived from the original on 21 October 2013
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