Your impact on the Island’s water quality begins in your backyard.
Activities like fertilizing your lawn adds excess nutrients, nitrogen and phosphorus, to stormwater runoff and groundwater.
These nutrients can then enter lakes, ponds, canals, the Sanibel Slough, and the Gulf.
As excess nutrients accumulate in the ecosystem, they can cause an unnatural increase in nutrient concentrations.
The excess nutrients stimulate the growth of algae and aquatic nuisance plants.
As a result, water clarity is decreased, availability of oxygen to aquatic organisms is limited, and fish die in large numbers.