For comparison, the salinity of the Red Sea, the saltiest sea on Earth, is 41‰ and reaches 350‰ in some hypersaline ...
Seawater is known for being quite salty. Salt in the sea, or ocean salinity, is mainly caused by rain washing mineral ions from the land into water. Carbon dioxide in the air dissolves into rainwater, ...
The physical properties of seawater include both 'thermodynamic properties' like density and freezing point, as well as 'transport properties' like the electrical conductivity and viscosity.
To understand that, the researchers exposed fertilised late-stage embryos of the crab (Gecarcoidea natalis) to four different levels of sea water salinity.