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Lake Profile

Kasumigaura

General Information

Description
Country Japan
Latitude 36° 3' 0" (36.0500)
Longitude 140° 25' 0" (140.4167)

Physical Characteristics

Description
Surface Area 167.50 km2
Residence Time 0.6 years
Trophic State Eutrophic
Type Fresh
Permanent
Natural

Socio-Political

Economic Value Kasumigaura provides over 60 tons of water a second. About 83% of this water goes to agriculture, 13% to industry and 4% to domestic water supply.
Major Cities Ibaraki, Chiba and Tokyo Prefectures

Watershed Management

Description Lake Kasumagaura is one of ten lakes designated under the Clean Lakes Law that must put together water quality conservation works and policies and gain the prime minister's approval for a management plan.
Issues Lake Kasumigaura experiences algal blooms and moldy water odor due to eutophication. Carp cultivation produces over 5,000 tons of fish a year in Kasumigaura. (1997)
Other Issues Nutrient pollution
Monitoring

Biodiversity Conservation

Description
Designations
Species of Concern

Organizations

Kosho Net
Citizens for Improvement of Lake Kasumigaura
Kasumigaura Citizens Association

LakeNet Programs

U.S. NGO Delegation Visit to Japan, March 2003

Documents

Resources

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.
International Lake Environment Committee, the United Nations Environment Program and Environment Agency, Government of Japan. 1997. World Lakes Database.

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