Due to the current inflow of fresh water, the Caspian Sea is a freshwater lake in its northern portions, and is most saline on the Iranian shore, where the catchment basin contributes little flow.
The Caspian Sea is a freshwater lake in its northern portions. This is due to the current inflow of fresh water. The Caspian Sea is most saline on the Iranian shore. This is due to the current inflow of fresh water. The catchment basin contributes little flow.