Toxic materials including petroleum products, pesticides, detergents,
and other chemicals can harm aquatic ecosystems by killing organisms including invertebrates, fish,
Nutrients including the nitrogen and
phosphorus found in fertilizers and animal waste can cause an overgrowth of algae which can
drive out indigenous plants and animals. In addition,when the algae die off, the decaying matter can deplete the water body of
oxygen killing fish
and other aquatic organisms.
to waterways by stormwater run off increases the turbidity of waters and limits the depth to which light can penetrate,thereby decreasing the inhabitable space that aquatic vegetation can survive. Sediments can also settle on, and smother,existing vegetation