hypersalinity       
noun [ U ]  science specialized (also hyper-salinity) uk/ˌhaɪ.pə.səˈlɪn.ə.ti/ us/ˌhaɪ.pɚ.səˈlɪn.ə.t̬i/
 高盐度
the fact of containing a lot of salt or too much salt
  The lake is ice-free throughout the year due to hypersalinity. 由于高盐度,该湖全年无冰。 
 The pelican population on the lagoon has declined, due to a lack of fish and hyper-salinity. 
 - More examples
 - They are studying the effects of hypersalinity on striped mullet.
 - Deposition of these rocks probably occurred in a semi-closed marine environment subject to hypersalinity.
 - The reefs are stressed by hypersalinity, and are supplied with sediment by wave action rather than by tidal currents.