Japan / Hokkaido Region /

JP007Lake Komuke, Shibunotsunai

Site Description


Lake Komukeko consists of three major water bodies, and the largest part is connected to the sea by an artificial stream. Vast wetlands appear when tide is low. The sea and the lakes are divided by a coastal sand bar. Salicornia europaes is pretty in autumn on the lakeshore. The lake is surrounded by reed beds and outside of the reed beds are farmlands and woodlands. Two low water rivers flow into the lake.
There is a floodgate at the entrance of Lake Shibunotsunai, but when there are storms, there is seawater intrusion into the lake. The lake is also surrounded by reed beds and farmlands.

Area & Coordinates

1,516ha 44°15′N 143°31′E
region: Hokkaido



Designation Type

Wildlife Protection Area (Local)

Protection Status


Conservation issues


Breeding resident

Anas platyrhynchos, Haliaeetus albicilla, Dendrocopos major, Dendrocopos leucotos

Breeding visitor

Gallinago hardwickii, Cuculus canorus, Luscinia calliope, Riparia riparia

Winter visitor

Phalacrocorax pelagicus, Clangula hyemalis, Bucephala clangula, Plectrophenax nivalis

Passage visitor

Cygnus columbianus, Calidris ruficollis, Anas penelope, Anas acuta



©OODATE Kazuhiro

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Copyright Wild Bird Society of Japan (WBSJ)