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Lake Profile

Lanao

General Information

Description Located in Mindanao, Lake Lanao is one of only seventeen ancient lakes on earth. It is estimated to be over two million years old.
Country Philippines
Latitude 7° 50' 0" (7.8333)
Longitude 124° 20' 0" (124.3333)
State

Maps

 Ancient Lakes of the World

Physical Characteristics

Description
Surface Area 375.00 km2
Depth Mean depth: 60.0 m
Maximum depth: 112.0 m
Age 2 million - 20 million years before present
Origin Volcanic
Type Fresh
Permanent
Natural

Socio-Political

Economic Value
Major Cities

Watershed Management

Description
Issues Several native species may have already gone extinct due to invasive species such as carp and gobies.
Invasive Species Limited Impact
Other Issues Erosion
Monitoring

Biodiversity Conservation

Description Lake Lanao is home to a highly unusual group of fish known as a "species flock". All 18 species are thought to have evolved from one species, the spotted barb. This ecoregion is also home to 41 endemic freshwater crab species.
Designations LakeNet Biodiversity Priority
WWF Global 200
Species of Concern

LakeNet Programs

Philippines: Establishment of Country-wide Lake Network

Documents

Memorandum of Understanding Between SEAMEO SEARCA and LakeNet  (PDF) Partnership Agreement. 11/25/2003.
Tagaytay Declaration on Philippine Lakes  (PDF) PlaNet. 11/28/2003.
The Lake Lanao Issue  Case Study. PDF. 9/17/2004.

Resources

Biodiversity Conservation of the World's Lakes: A Preliminary Framework for Identifying Priorities
ILEC Database
Philippine freshwater zooplankton: an illustrated list (Oct. 2003)
The Lake Lanao Issue

News

9/7/2004 - Senate asked to probe "ecological havoc" in Lake Lanao
11/25/2003 - Philippines holds first national lake congress
7/15/2001 - Phillippine President urged to halt logging in Lake Lanao watershed

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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