Lake Inawashiro

Country/territory: Japan

IBA Criteria met: A4i (2004)
For more information about IBA criteria please click here

Area: 10,933 ha

Wild Bird Society of Japan
Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2015 medium near favourable high
For more information about IBA monitoring please click here

Site description
Located in the northwestern part from the center of Fukushima Prefecture, the lake is at 514 m height above sea level, with perimeters of 56 km and 103.3 km2 in area. Due to inflow of strongly acidic groundwater and rivers, the lake shows acidification, with low Chemical Oxygen Demand (COD) in the water and high degree of transparency. The surrounding wetlands include the one with the government designated Natural Monument Akaiyachishoya helophyte community mainly composed of Sphagnum.

Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Lake Inawashiro. Downloaded from on 22/03/2023.