Murray cod are actually very tolerant of rising salinity levels. As a matter of fact, aquariums which keep Murray cod add small amounts of ordinary sea salt to the water because it imrpoves the health of the fish and minimises bacteria in the water.
Salinity of water increase by evaporation.
the amount of salinity in the water and high temperatures
What happens is, the high salinity water (hyper tonic solution), mixes with the low salinity water (Hypo tonic solution), and eventually the sodium and chloride ions will slowly move into the lower salt water, and create a uniformly salty water.
You could increase the salinity of the ocean by adding salt or removing water (ie: by evaporation).
runoff from land
Salt is dissolved in a smaller volume of water.
salt a decrease in temperature and an increasue in salinity
Buoyancy is the ability of an object to float in a fluid. The salinity of water affects buoyancy by increasing the density of the water. Higher salinity water is denser, which can increase the buoyant force on an object, making it easier for objects to float.
Decreasing the temperature, evaporating water, or adding more salt.
Salinity is related to temperature through the process of evaporation. When water evaporates, salt is left behind, increasing the salinity of the remaining water. Warmer temperatures can lead to higher rates of evaporation, which can in turn increase the salinity of the water. Conversely, colder temperatures can lower the rate of evaporation and decrease salinity.
evaporation and freezing of sea water
salt a decrease in temperature and an increasue in salinity