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11.1.1 Temperature
Temperature plays an important role in the biological activities of pearl oyster in the temperate waters (The optimum temperature for the growth of oyster in Japan is found to be 20-25oC). Above 28oC, the pearl oysters show signs of exhaustion. Spawning is effected by the heating the water temp. from 25-30oC. The calcification is stopped when the water temperature goes below 13oC. The oyster perishes at 6oC.
Oysters are very common in tropical waters than in temperate waters due to their preference of higher temperature for their growth and reproduction. |
Last modified: Saturday, 24 December 2011, 11:34 AM