Much to our surprise when the plankton entered the oyster tried very hard to expel the plankton. Within3-5 minutes, the movement of the heart became very abnormal and the oyster died at once.

• 意想不到的是当浮游生物进入蚌体时，珠蚌的排异性非常强，3到5分钟之内，蚌的心脏运动异常并很快死亡。