福建纹胸鱼兆的幼鱼发育历经仔鱼前期、仔鱼期和稚鱼期 3个阶段。在水温 14.0℃～ 2 7.5℃的条件下 ,各阶段分别历时 6天、6天和 30天。 3个阶段结束时 ,全长分别为 6 .2mm～ 7.0mm ,7.8mm～ 8.6mm ,15 .0mm～ 17.0mm。幼鱼避光反应在出膜后 2天、刚能自由运动时就已出现 ,同时开始集群 ,集群现象终生存在 ,成鱼有所减弱。幼鱼发育结束的标志是胸部吸着器形成 Fujian Chest Mussels trillion juveniles larvae after larval development, larvae and juvenile phase 3 stages. Under the conditions of water temperature 14.0 ℃ ~ 2 7.5 ℃, each stage lasted 6 days, 6 days and 30 days respectively. The end of the three stages, the full-length were 6.2mm ~ 7.0mm, 7.8mm ~ 8.6mm, 15.0mm ~ 17.0mm. Juveniles dark reaction at 2 days after the film, just able to free movement has emerged, and began to cluster, the phenomenon of cluster life, adult fish have weakened. The sign of the end of juvenile development is the formation of the chest sorb