Oyama Kami-ike and Shimo-ike

Ramsar logo

Oyama Kami-ike and Shimo-ike

  • Country: 
  • Site number: 
  • Area: 
    39 ha
  • Designation date: 
  • Coordinates: 
    38°43'N 139°45'E
Materials presented on this website, particularly maps and territorial information, are as-is and as-available based on available data and do not imply the expression of any opinion whatsoever on the part of the Secretariat of the Ramsar Convention concerning the legal status of any country, territory, city or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries.


Oyama Kami-ike and Shimo-ike. 30/10/08; Yamagata; 39 ha; 38°45'N 139°45'E. Habitat /Species Management Area, National Wildlife Protection Area. A freshwater lake as well as irrigation reservoir for the past 400 years, which supplies water to the agricultural fields. The site is important for vulnerable species under the IUCN Red List like Steller's Sea Eagle (Haliaeetus pelagicus) and Baikal Teal (Anas formosa), and it supports Anatidae species, exceeding 20,000 individuals and 1% threshold of species of mallards (Anas platyrhynchos) and Tundra Swans (Cygnus columbianus). It also supports 18 fish species. Kami-ike is used for cultivating lotus commercially. A management plan is anticipated to enter into force in October 2008. Ramsar site no. 1844. Most recent RIS information: 2008.

Administrative region: 
Yamagata Prefecture

  • National legal designation: 
    • Special Protection Area of National Wildlife Protection Area
  • Last publication date: 


Ramsar Information Sheet (RIS)