Where is the Gulf of Bothnia?
between Finland and Russia
between Sweden and Finland
between Sweden and Denmark
between Finland and Estonia
A number of rivers from both countries flow into the gulf. As a result, a salinity gradient exists from north to south. In the south the water is the normal brackish water of the Baltic Sea, but in the north, the salinity is so low, that one can no longer taste the salt in the water and many freshwater fish thrive in it.
