三、蚌苗的收集与培育从鱼体脱落下来的蚌苗体长０．３～１０毫米 ,体白透明 ,斧足很长 ,纤毛不停地摆动 ,可前后运动。由于个体微小 ,生活能力差 ,如脱落在有机质较多的地方 ,可能会闷死 ,或者受溶氧、水流、饵料等条件的影响和敌害的侵袭而造成死亡。所以必须加强管理和保护 Third, the collection and cultivation of clam seedlings from the body off the clam body length of 0.3 to 10 mm body white transparent, long enough to ax, ciliary kept swinging, before and after exercise. Due to the small individual, poor living ability, such as shedding where organic matter is more likely to suffocate, or by the dissolved oxygen, water, food conditions and the impact of the enemy and the invasion caused by death. Therefore, we must strengthen management and protection