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.
Beymelek Lagoon ("Lithognathus mormyrus"), white grouper ("Epinephelus aeneus") and sargo ("Diplodus sargus"), as well as blue crab ("Portunus pelagicus"). Average fishing Catch efficiency is given with 21.3 kg fish per hectare. Endangered turtle species loggerhead sea turtle ("Caretta caretta") is also under protection in the fishery. The fishery is also a sanctuary for 20 bird species. Beymelek Lagoon Beymelek Lagoon () is a lagoon on the Mediterranean coast, which is used as a fishery, in Antalya Province, southwestern Turkey. It is named after the village of Beymelek, which is located to the west of the water body. It is situated in Demre