The salinity of Great Salt Lake is measured by taking specific gravity and temperature measurements and comparing them to standardized values reported in a table.
Saline water has some uses. In 2000, the U.S. used about 62 billion gallons per day of saline water, which was about 15 percent of all water used.
Lake Okeechobee, which means “big water” in the Seminole Native American language, is the largest lake in the southeastern United States and the second largest lake within the contiguous United States.
First of all, plants naturally grow in and around lakes. Maybe you're asking about a lake that is being choked off by too much algae. In many cases, humans are responsible. Actually, these lakes are being fed too much food for plants!