Partner Living Lakes
Partner Lake since
1998 (Foundation member)
Origin
Tectonic
Age
4 - 5 million years
Size
674 sq. km [km²]
Length, width
63 km, 23 km
Water volume
27.5 billion of cubic m [m³]
Maximum depth
104 m
Sea level
84 m
Catchment area
3,174 sq. km [km²]
In-flows
460
Largest in-flows
Echi, Hino, Ane, Yasu, Ado
Out-flows
1 (Seta river)
Salinity
fresh water
Mean precipitation per year
some 1,600 mm in south
over 3,000 mm in north
Mean air temperature
approximately 15 °C
Frozen over
no freezing
Location
Shiga Prefecture in Japan
Vegetation
A wide variety of temperate climate vegetation thrives in the watershed. The mountain forests are characteristically composed of secondary pine, cedar, cypress and various herbaceous plants.
Water plants, birds, animals
1,086 species, 50 endemic
Fish
60 species, 12 endemic
Inhabitants
1.32 million people
Biggest problem
eutrophication
Largest success
elimination of artificial detergents