The scientific name of Shandong Carex is Enteromorpha. Enteromorpha belongs to the genus Enteromorpha of Ulva in Chlorophyta. It is a kind of wild green algae with particularly strong natural reproduction ability. It is composed of single-layer cells, and its plants are very slender and green filaments, which can grow on rocks in intertidal zones or epiphyte on algae bodies of large algae. It is distributed in all sea areas of the world, especially in Asia. The most practical way to control Enteromorpha prolifera is manual salvage, which will not bring other harm to the marine environment. Centralized salvage is the main measure to prevent rapid flooding of Enteromorpha prolifera. Qingdao has adopted the method of "combining salvage with enclosure, combining mechanical operation with manual salvage, and combining sea area cleaning with land clearing".