Although there exist many plants that live in salt water, the mangrove plant is the only tree capable of making fresh water out of salt water by discharging sea-salt through its leaves. About five percent of all mangrove leaves are constantly falling off year round because they died of salt saturation.
This area of upper Florida Bay is so far from open seawater, lunar tides do not effect the water level -- however, the water level does rise and lower a foot or two several times a year due to wind blowing the water from and towards the Gulf of Mexico.
This area of upper Florida Bay also is very salty because seawater continually comes in and evaporates in the shallow waters -- leaving mostly sodium-chloride salts. However, many other interesting medicinal and nutritional salts are also evaporated and makeup the unique hydrological chemistry of the area.