Salinity

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Salinity is the saltiness of water and is influenced by leaching rock and soil formations, runoff from a watershed, atmospheric precipitation and deposition, and evaporation. It is measured in units of parts per thousand (abbreviated ppt).

In Florida, some rivers, lakes and even springs are noticeably saline. Most freshwater aquatic plants are sensitive to elevated salinity - in saline waters, only salt-tolerant species will flourish.

The Atlantic Ocean and the Gulf of Mexico typically have salinity values around 35 ppt, although there is significant variation, particularly in near shore areas. Salinity often tends to be lower in areas receiving inflows of freshwater, like the mouths of rivers. Salinity often tends to be higher in areas where the evaporation rate is high, in hot, dry climates.


See also:
Chloride
Sodium
Specific conductance


The information on this page was derived in part from the following publication of
Florida Lakewatch of the University of Florida Department of Fisheries and Aquatic Sciences.
This booklet may be downloaded in its entirety as a PDF file by clicking here.
Scroll down till you see the Circular 101 icon.


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This project is a collaboration of
the Center for Aquatic and Invasive Plants, University of Florida,
and the Bureau of Invasive Plant Management, Florida Department of Environmental Protection


CAIP-WEBSITE@ufl.edu
Copyright 2003 University of Florida