Survival from fertilized eggs to D stage larvae and spat averaged 53.9% and 1.3% respectively in DT groups, compared to 61.6% and 1.9% respectively in controls. There was no significant difference in survival to D stage and spat between DT and DD groups.

• 受精卵发育至稚贝的存活率 ；杂交组和对照组分别为 1 .；3%25和1