Pearl oyster:- ◆Generally pearl oysters are found on stones submerged which are called "PAARS". ◆The pearl oysters also found on corals present in the sea. ◆The pearl oyster found at a depth of 9-10 fathoms ◆The pearl oyster found at a distance of 4-5km of the shore ◆These pearl oysters grow 10mm in 4-5 years ◆In India oyster beds present in the esat coast region are more productive than west coast region FOOD OF OYSTERS:- ◆The pearl oysters feed on foraminiferons,diatoms,larva of other animals,larva of bivalves , nauplius larva,etc ◆The pearl oysters are euryhaline in nature .So they can tolerate high salinity from 24-50%.