Combined effects of temperature, salinity and pH on the clearance rate of juveniles of Pinctada martensii (Dunker) Clearance Rate, Ingestion Rate and Absorption Efficiency of the Scallop Chlamys farreri Measured by in situ Biodeposition Method Studies of Ultrafiltration Property in Preparing Injections from Chinese Medicinal Herbs by J-48 Ultrafilter Effect of suspended sediment on the feeding physiology of Pinctada martensii in laboratory