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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.

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11y ago

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