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.
Malyi Sasyk Lagoon The water body is included into the Tuzly Lagoons National Nature Park. Malyi Sasyk Lagoon Malyi Sasyk Lagoon, or Small Sasyk (, ), is a salty lagoon in the Tuzly Lagoons group in Tatarbunary Raion of Odessa Oblast, Ukraine. It is located to south from the Shahany Lagoon. The total area of the lagoon is 2.36 km². The lagoon is connected with the Dzhantshey Lagoon in south. The touristic village Rasseyka is located on the north-west coast of the lagoon. The lagoon is separated from the Black Sea and also from the Shahany Lagoon by the sandbar with the marine