Abstract:
This paper reported for the first time on theinduced spawning, larvae and spat rearing of the Asian moon scallop Amusium pleuronectes. The results showed that stimuli of drying in the shadow and water flow was efficient for inducing the scallops to release sperm and eggs. Fertilized eggs developed to straight-hinged veligers (D-veligers) in 20 hours or so. At the temperature of 22.0~24.0℃, pediveligers were observed in 11 days after D-veliger stage. Spat grew to (2.00.18) mm in next 30 days. Four hundred and ninety six thousand spat in shell length (2.931.15 ) mm were obtained in this experiment.