Seven of the largest lakes in central Asia (former USSR) are saline: C
aspian Sea, Aral Sea, lakes Balkhash, Issyk-Kul, the Chany complex, Al
akul and Tengiz. They range in salinity from sometimes < 3 g l-1 to 19
g l-1. The paper provides a summary review of their major physico-che
mical and biological features. Several are threatened by activities in
their drainage basins, particularly diversion of inflowing waters.