Effect of suspended sediment on the feeding physiology of Pinctada martensii in laboratory Clearance Rate, Ingestion Rate and Absorption Efficiency of the Scallop Chlamys farreri Measured by in situ Biodeposition Method Study on Margarya melanioides‘ feeding characteristics towards four attached algae and its potential restoration in Erhai basin A comparative study on feeding intensity of two rotifer Brachionus calyciflorus strains