1.College of Marine，Hainan University，Haikou 570228，China;2．Oceans and Fisheries Monitoring Center of Sanyan,Sanyan 572000,China;3.Marine Environmental Monitoring Center of Haikou，Haikou 570105,China
Abstract: The embryonic and larval development of dioecious coralAcroporahyacinthuswas continuously observed in artificially fertilized eggs by sperm collected from natural spaThe embryonic and larval development of dioecious coralAcroporahyacinthuswas continuously observed in artificially fertilized eggs by sperm collected from natural spawn corals under a microscope. It was that the corals were hermaphrodites, in vitro fertilization, and spawn on the second to third day after full moon. The embryonic development was divided into six stages: zygote stage, cleavage, blastula, gastrula, planula and coral larvae. The fertilized eggs developed into planula attached to the tiles in 48 h and then became gradually expanded from round to butterfly, completely attached to the substrate, oral disc up, and the larvae settled and metamorphosized in 7 d. The planulae grew and had tentacles to form coral larvae. The findings provided a theoretical basis for ecological restoration of coral reefs. The hyacinthAcroporaembryonic and larval development in Wenchang Cloud Longwan was reported for the first time in China.wn corals under a microscope. It was that the corals were hermaphrodites, in vitro fertilization, and spawn on the second to third day after full moon. The embryonic development was divided into six stages: zygote stage, cleavage, blastula, gastrula, planula and coral larvae. The fertilized eggs developed into planula attached to the tiles in 48 h and then became gradually expanded from round to butterfly, completely attached to the substrate, oral disc up, and the larvae settled and metamorphosized in 7 d. The planulae grew and had tentacles to form coral larvae. The findings provided a theoretical basis for ecological restoration of coral reefs. The hyacinthAcroporaembryonic and larval development in Wenchang Cloud Longwan was reported for the first time in China.
2014, Vol. 29 
