文中详细记录了金头鲷胚胎发育过程中各期发育时间及特征,并对各期进行显微摄像。金头鲷卵为圆球形,属浮性卵,吸水膨胀后卵径为0.82mm~0.92mm,油球1个。在温度19℃、盐度为30、pH为8.2的海水中,控光在300Lx左右,金头鲷胚胎发育至仔鱼破膜而出,历时约44h48min。此过程共分5个阶段,经23个发育期结束。 In this paper, the developmental stages and characteristics of each stage of Ginkgo biloba are recorded in detail, and the microscopic images of each stage are recorded. Ginkgo bream egg is spherical, is a floating egg, after the expansion of the egg diameter of 0.82mm ~ 0.92mm, a ball of oil. In seawater at a temperature of 19 ° C, a salinity of 30 and a pH of 8.2, the light was controlled at about 300 Lx, and the goldfish was developed into a larval rupture of the larvae lasting about 44 h 48 min. This process is divided into five stages, the end of 23 developmental period.