Ecological Efficiency of the Mussel Hyriopsis cumingii (Lea, 1852) on Particulate Organic Matter Filtering, Algal Controlling and Water Quality Regulation

Hyriopsis cumingii plays an important role in aquatic ecosystems and fishery economy due to its potential value for water purification edibleness. The present study was undertaken reveal the short- long-term purifying effects of H. on pond water. short-term experiment results showed that total suspended solids, particulate organic carbon, fatty acid were significantly eliminated by cumingii, with average percentage filtering effect respectively reaching 22.19%, 57.48%, 21.00% high-density group. Analogously, could reduce phytoplankton biomass, species number, density, chlorophyll-a concentration, especially control diatoms, green algae, cyanobacteria. Besides, electric conductivity also reduced variation tendency a typical density-dependent effect. Similar observed chemical oxygen demand (COD), nitrogen, phosphorus. In monitoring test, has shown positive transparency COD recirculating aquaculture pond. Overall, excellent ecological function, mixed breeding density shellfish is worth further exploration.