The buffering capacity of water, its ability to resist changes in pH, is critical to aquatic life. Aquatic organisms survival greatly diminishes as pH falls below 5 or increase above 9. To meet Florida state standards the pH of the water must be between 6.5 and 8.5 . Water Clarity Material that becomes mixed or suspended in water will cause the water to become more turbid and reduce the clarity of the water. As the water clarity decreases, light will not be able to penetrate as far below the water's surface.
Many factors can contribute to decreasing water clarity.
During periods of rain, storm water runoff contains silt and sand washed from the streets, yards, and construction sites are carried into the water. In shallow water winds, boats and people may stir up bottom sediments contributing to decreasing water clarity. Decreases in water clarity can have a profound effect on penetration of sunlight below the surface of the water. Plants need sunlight in order for photosynthesis to occur. The plants which live on the bottom, typically seagrasses, are particularly affected by reduced penetration of sunlight.