Crassostrea (genus)

Crassostrea is a genus of oyster species known for producing edible shellfish popular in cuisines worldwide. These oysters have irregularly shaped, rough, and often thick shells that protect their soft bodies. They typically attach firmly to rocks, man-made structures, or other surfaces in estuarine and coastal environments. Crassostrea oysters play a vital ecological role by filtering water, which helps improve water quality. They are also farmed commercially, providing a valuable seafood resource. Variations exist among species in size, habitat, and shell morphology, but all within the Crassostrea genus share common characteristics that distinguish them from other oysters.