description：

This township is an important area of production of Portunus pelagicus, the so called sand crab, which have high economic value. They mainly perch on the bottom of sand or reef rocks 20-80 meters under the water. During reproduction period, they will go to shallower sea area for mating. Young crabs can be caught on the sand bottom or rocks of flat tide 0-5 meters under the water. Male crabs and female crabs have very different body color. Mature male crabs have mixed blue and purple color streaks in cloud shape on the shell, and the streaks on the shell of female crabs are in mixed light green and blue. Sand crabs will distribute over the wide tidal flat of Baisha Township during reproduction season. It is very often that people can catch a pair of mature crabs. Penghu  Branch of Fisheries Research Institute once set free about dozens of hundred thousands of sand crab offspring which was just hatched to the tidal flat of Chenhai Village and investigated next year finding that the number is multiply bigger than the last 2 years. This is also one of the items for cultivating fishery that has the most remarkable performance.