大连海洋大学学报
大連海洋大學學報
대련해양대학학보
JOURNAL OF DALIAN FISHERIES UNIVERSITY
2014年
5期
444-448
,共5页
朱潜%孙杨%肖业有%宋培学%钱军%李洪武
硃潛%孫楊%肖業有%宋培學%錢軍%李洪武
주잠%손양%초업유%송배학%전군%리홍무
风信子鹿角珊瑚%胚胎发育%幼虫发育
風信子鹿角珊瑚%胚胎髮育%幼蟲髮育
풍신자록각산호%배태발육%유충발육
Acropora hyacinthus%embryonic%larval development
采集异株风信子鹿角珊瑚Acropora hyacinthus自然排放的精卵,进行人工授精,并在显微镜下连续观察其胚胎和幼虫的发育过程。结果表明:风信子鹿角珊瑚是雌雄同体,体外受精,在月圆后2~3d同期排卵;其胚胎发育分为6个阶段,即受精卵期、卵裂期、囊胚期、原肠期、浮浪幼虫期、珊瑚幼体;受精卵经过48 h发育为浮浪幼虫,再经7 d着床变形发育为珊瑚幼体;其浮浪幼虫附着在附着基上后逐渐膨大,由圆形变成蝶形完全附着在基底上,口盘朝上,随后幼虫发生附着变形,长出触手,形成珊瑚幼体。本研究为国内对文昌云龙湾风信子鹿角珊瑚的胚胎和幼虫发育过程的首次报道,研究结果可为珊瑚礁的生态修复提供参考依据。
採集異株風信子鹿角珊瑚Acropora hyacinthus自然排放的精卵,進行人工授精,併在顯微鏡下連續觀察其胚胎和幼蟲的髮育過程。結果錶明:風信子鹿角珊瑚是雌雄同體,體外受精,在月圓後2~3d同期排卵;其胚胎髮育分為6箇階段,即受精卵期、卵裂期、囊胚期、原腸期、浮浪幼蟲期、珊瑚幼體;受精卵經過48 h髮育為浮浪幼蟲,再經7 d著床變形髮育為珊瑚幼體;其浮浪幼蟲附著在附著基上後逐漸膨大,由圓形變成蝶形完全附著在基底上,口盤朝上,隨後幼蟲髮生附著變形,長齣觸手,形成珊瑚幼體。本研究為國內對文昌雲龍灣風信子鹿角珊瑚的胚胎和幼蟲髮育過程的首次報道,研究結果可為珊瑚礁的生態脩複提供參攷依據。
채집이주풍신자록각산호Acropora hyacinthus자연배방적정란,진행인공수정,병재현미경하련속관찰기배태화유충적발육과정。결과표명:풍신자록각산호시자웅동체,체외수정,재월원후2~3d동기배란;기배태발육분위6개계단,즉수정란기、란렬기、낭배기、원장기、부랑유충기、산호유체;수정란경과48 h발육위부랑유충,재경7 d착상변형발육위산호유체;기부랑유충부착재부착기상후축점팽대,유원형변성접형완전부착재기저상,구반조상,수후유충발생부착변형,장출촉수,형성산호유체。본연구위국내대문창운룡만풍신자록각산호적배태화유충발육과정적수차보도,연구결과가위산호초적생태수복제공삼고의거。
The embryonic and larval development of dioecious coral Acropora hyacinthus was 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 de-velopment 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 hyacinth Acropora embryonic and larval development in Wenchang Cloud Longwan was reported for the first time in China.