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.
Chundikkulam Lagoon lagoon is surrounded by palmyra palm plantations and scrubland. The land is used for prawn fishing and some salt production. The lagoon has small areas of mangrove swamp and sea grass beds. The lagoon attracts a wide variety of water birds including storks, ibis, ducks, coot, gulls and tern. Most of the lagoon was designated a bird sanctuary in 1938. Chundikkulam Lagoon Chundikkulam Lagoon (, ) is a lagoon in Jaffna District and Kilinochchi District, north-east Sri Lanka. The town of Chundikkulam is located on a narrow piece of land between the lagoon and the Indian Ocean. The lagoon is