Utilizing Azolla to purify water body would be a new way to break the bottleneck of high-density and intensive aquaculture, so as to realize the closed aquaculture water recycling.

• 利用红萍净化水体将为解决高密度集约化水产养殖的瓶颈提供新途径，实现水产养殖用水的封闭循环利用。