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Lake Profile

Xolotan (Lake Managua)

General Information

Description Lake Xolotan is a warm, shallow lake which is so severely polluted with sewage and toxics that its water can no longer be used either for drinking water or irrigation.
Country Nicaragua
Latitude 12° 19' 12" (12.3200)
Longitude -86° 20' 59" (-86.3500)

Physical Characteristics

Volume 8.00 km3
Surface Area 1,000.00 km2
Type Fresh
Catchment Catchment size: 6,668.00 km2
Catchment/surface area ratio: 7:1


Economic Value
Major Cities Managua
Population 1,000,000 (0)

Watershed Management

Issues Xolotan's watershed is heavily deforested. The lake is heavily polluted with raw sewage from a population of over a million people in nearby cities. There are many industrial discharges, mercury among them.
Other Issues Nutrient pollution
Polluted runoff
Point source pollution
Specific Contaminants Industrial
POPs/PCPs/Endocrine Disrupters
Monitoring Programs In-Lake
Water Quality

Biodiversity Conservation

Designations LakeNet Biodiversity Priority
Species of Concern


Research Center for Inland Waters of Nicaragua, University Nacional Autonoma de Nicaragua

LakeNet Programs

LakeNet 2000: A Dialogue on Participatory Watershed Management



Biodiversity Conservation of the World's Lakes: A Preliminary Framework for Identifying Priorities
IDB Lake Managua Project
ILEC Database
ILEC Database

Additional Data Sources

Birkett, C., and I. Mason. 1995. A new global lakes database for remote sensing programme studying climatically sensitive large lakes. Journal of Great Lakes Research, 21 (3) 307-318.
Duker, L. and L. Borre. 2001. Biodiversity conservation of the world's lakes: a preliminary framework for identifying priorities. LakeNet Report Series Number 2. Annapolis, Maryland USA.
International Lake Environment Committee, the United Nations Environment Program and Environment Agency, Government of Japan. 1997. World Lakes Database.

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