Our 10,000-mu ecological breeding base is located on Huaguman Island, Sanmen County, China. It belongs to the subtropical monsoon climate zone, with a coastline about 4 kilometers long and sea area about 6 square kilometers. The water quality in the harbor is fertile and pollution-free, and the salinity is moderate. There are rich baits, soft soil, with more than 800 kinds of marine organisms, which makes it an ideal growth place for blue crab, palaemon carinicauda, sinonovacula constricta, and tegillarca granosa.