Lake AkkeshiAkkeshi-ko is a brackish lake near Akkeshi in Hokkaidō, Japan. The wetlands of Lake Akkeshi and Bekanbeushi Marsh have been designated a Ramsar site.WetlandsLake Akkeshi, deep at its deepest point, is fed by the Bekanbeushi River and adjoins Akkeshi Bay. It is surrounded by salt marsh, fens, and bogs.BirdsSince a part of this lake does not freeze, whooper swans and ducks winter there. The white-tailed eagle and Steller's [sea eagle] also visit. There is a 381ha Japanese crane sanctuary.Sustainable useFishing and the aquaculture of oysters and clams occur in the lake.