Is called (rather unsurprisingly) a fresh water ecologist.
Ecology addresses the relationships between organisms and with their environment. Freshwater ecology studies those relationships in freshwater (non-salty water) environments.
You get lesser salty water. The fresh water and salt watwr will diffuse together. In aquatic ecology sense, area where fresh water meet with sea water is brackish water.
It is an arm of ecology that studies microscopic organisms in aquifers, reservoirs, wells, other drinking water systems, and fresh water biomes to determine that the waters are free of polluting microorganisms.
A person who studies water and its properties is called a Hydrogeologist.
the person that studies water and the water cycle is a HYDROLOGIST.
David Charles Lasenby has written: 'The ecology of Mysis relicta in an arctic and a temperate lake' -- subject(s): Fresh-water ecology, Mysis relicta
In sea water it's a marine biologist. If the water is fresh it's just a freshwater biologist.
Both the Marine Biologist and the Ichthyologist study fresh and saltwater fish.
A Hydrologist.
Salt water has higher density than the body of a person who floats on it, but the person's body may sink in less dense fresh water.
A hydrologist is a scientist that studies water and its cycle.hydrologisthydrologistsHydrologisthydrologist
Hydrologist