What do oysters eat?
Oysters eat mostly plankton and algae that lives on the surface
of the ocean.
Oysters are filter feeders (also known as
suspension feeders) that feed by straining suspended matter and
food particles from water. Evidence shows that their capacity to
filter water can improve the quality of water, making them valuable
for coastal regions in which water quality is poor. Because of
their filtering abilities, they are used in some coastal regions to
help control water pollutants.