Anadromous migration of postlarva and juvenile prawn is one of its chief schooling characteristics in its life cycle. In order to look into the growth and feeding habits in relation with environmental factors, two experiments have been done. One is an investigation on the number of anadromous juvenile prawn. The other is on culturing juvenile prawns on salt pans. The results of these two experiments are summarized as follows: An order of look for the growth and feeding habits in relation with environmental factors, two experiments have been done. One is an investigation on the number of anadromous The other is on culturing juvenile prawns on salt pans. The results of these two experiments are summarized as follows: