Uatumã River

Uatumã River
Country Brazil
Source
 - location Amazonas, Brazil
Mouth Amazon River
 - coordinates 2°24′55″S 57°34′38″W / 2.41528°S 57.57722°W / -2.41528; -57.57722Coordinates: 2°24′55″S 57°34′38″W / 2.41528°S 57.57722°W / -2.41528; -57.57722
Length 660 km (410 mi) [1]
Uatumã River just right of center (east of Manaus)

The Uatumã River (sometimes spelled Uatamã) is a river flowing through the state of Amazonas in Brazil. It is a northern tributary of the Amazon River, and known for its extensive peacock bass population.[2] It is a blackwater river.

During the wet season starting in December, water levels can rise some 25 to 40 feet. Water levels have been strongly affected by the building of the controversial Balbina Dam on the river in the mid to late 1980s to generate electricity. The hydroelectric dam generates an average of 112.2 MW of electricity from the river system and floods a total of 2360 km2 of rainforest around the Uatumã river.[3]

Uatumã Biological Reserve established in 1990 is a nature reserve around the river in the municipalities of São Sebastião do Uatumã and Itapiranga.[4]


References

  1. ↑ 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 8 November 2014.
  2. ↑ Fine fishing.com
  3. ↑ Philip M. Fearnside (2006-08-26). "Balbina Dam, Amazonas". Department of Ecology, National Institute for Research in the Amazon (INPA). Retrieved 2007-12-04.
  4. ↑ "Uatumã Biological Reserve". Instituto Nacional de Pesquisas da Amazônia - INPA. Retrieved 7 March 2012.


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