A polyculture of shrimp-fish-shellfish-algae in water recirculating system with group ponds ecologically optimum culture pattern was designed in this paper. The system comprises four functionally different culture areas: prawn culturing area, fish culturingarea area, shellfish culturing area and large-scale marine algae cultivating area, additionally, one water treatment area, and one emergency drainage canal.
An ecological optimal aquaculture mode was established which included four aquaculture areas with different functions to culture prawn,fish,shellfish and macroalgae respectively,one water treatment area and one emergent off-taking area.