Euopäische Meere-Baltisches Meer–

The Baltic Sea, internationally known as the Baltic Sea (v Mare Balticum), is an inland sea of the Atlantic Ocean in Europe and, unlike the North Sea, is not a marginal sea of this ocean. It is predominantly a brackish sea, whereby a higher salt and oxygen content can be observed in the western Baltic Sea due to the water exchange with the Atlantic and North Sea. The countries bordering the Baltic Sea are Germany, Denmark, Sweden, Finland, Russia, Estonia, Latvia, Lithuania and Poland. Historically, the border ran through the Belt Sea, as the Kingdom of Denmark levied the Sund toll at the entrances to the Baltic Sea. The toll station in the Öresund was Kronborg Castle near Helsingør. In the Great Belt, it was collected at Nyborg. For the Little Belt, the Sundzoll was called the Stromzoll or Beltzoll and was levied there since the founding of the fortress of Fredericia in 1650.