抄録
Artificially collected eggs of Cromileptes altivelis were observed before and after fertilization. Newly ovulated eggs (125 g, 1, 995 eggs/g) were stripped from a female (1.2 kg) . Immediately after fertilization, the eggs absorbed water and became fully spherical with a hard covering membrane. Each egg had an oil globule. The diameter of the fertilized eggs ranged from 0.80 to 0.86 mm. The egg development was also observed. The eggs hatched from 23 h 39 min to 28 h after fertilization at 26.3-27.8°C. The fertilization and hatching rates were 90.5% and 73.8%, respectively.
