Vistula Lagoon million. However, major ecological considerations stand in the way. For example, mammal migration along the lagoon could be disrupted. Also, the inflow of brackish waters from the Baltic sea could result in serious unbalancing of the lagoon's freshwater ecosystem. From 1772 until 1918, the lagoon was part of the Kingdom of Prussia, which had become part of the German Empire in 1871. Between 1920 and 1946 it was split between Germany and the Free City of Danzig. At present state since 1945 its eastern part belongs to Russia (formerly USSR), Poland has 43.8% of its area at lagoon's western side.
Chalai Lagoon gulls, terns and other shorebirds. Chalai Lagoon Chalai Lagoon is a lagoon in Mullaitivu District, north-east Sri Lanka. The town of Chalai is located on a sand bar between the lagoon and the Indian Ocean. The lagoon is fed by a number of small rivers. It is linked to the sea by a narrow channel near Chalai. The lagoon's water is brackish. The lagoon is surrounded by dense forest, scrubland and some rice paddies. The land is used for fishing and some salt production. The lagoon has extensive sea grass beds and mangrove swamp. The lagoon attracts a wide variety