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.
A person who studies water and its properties is called a Hydrogeologist.
A hydrologist is a person who studies water, including the water cycle.
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.
A Hydrologist.
Both the Marine Biologist and the Ichthyologist study fresh and saltwater fish.
When fresh water is added to salt water, the two types of water will initially form distinct layers due to differences in density. Over time, through a process called mixing and diffusion, the fresh water and salt water will blend together, creating a more uniform salt concentration throughout the mixture.
A hydrologist is a scientist that studies water and its cycle.hydrologisthydrologistsHydrologisthydrologist
A person who studies ground water is called a hydrogeologist. They specialize in studying the occurrence, movement, and properties of groundwater within the Earth's subsurface.
Hydrologist
One is: Ecology is permanent economy. I think another one is: Soil, clean water, and fresh air! Love the trees they will love you