热带海洋学报 ›› 2017, Vol. 36 ›› Issue (1): 65-71.doi: 10.11978/2016044

• • 上一篇    下一篇

肉质扁脑珊瑚的有性繁殖及早期发育

肖宝华1,2(), 廖宝林2, 杨小东2, 谢子强3   

  1. 1. 广东海洋大学, 广东 湛江 524025
    2. 广东海洋大学深圳研究院, 广东 深圳 518108
    3. 深圳市碧海蓝天海洋科技有限公司, 广东 深圳 518108
  • 收稿日期:2016-04-28 修回日期:2016-09-06 出版日期:2017-01-18 发布日期:2017-01-19
  • 作者简介:

    作者简介:肖宝华(1978—), 男, 福建省长乐市人, 硕士, 主要从事海洋生态学研究。电话: 0759-2396216, E-mail:gdouxxhpaper@126.com

  • 基金资助:
    广东省公益研究与能力建设专项 (K15216);广东省海洋渔业科技推广专项(A201308E02);大鹏新区产业发展专项(DPKJ201500080)

Sexual reproduction and early development of Platygyra carnosus

Baohua XIAO1,2(), Baolin LIAO2, Xiaodong YANG2, Ziqiang XIE3   

  1. 1. Guangdong Ocean University, Zhanjiang 524025, China
    2. Shenzhen Research Institute of Guangdong Ocean University, Shenzhen 518108, China
    3. Shenzhen Ocean Hyaline Marine Science and Technology Co., Ltd. Shenzhen 518108, China
  • Received:2016-04-28 Revised:2016-09-06 Online:2017-01-18 Published:2017-01-19
  • Supported by:
    Public Welfare Research and Capacity Building of Guangdong Province (K15216);Marine Fishery Science and Technology Promotion Project in Guangdong Province (A201308E02);Dapeng New District Development Projects (DPKJ201500080)

摘要:

在实验室养殖的条件下对肉质扁脑珊瑚Platygyra carnosus的有性繁殖进行初步观察, 收集其排放的精卵进行受精, 同时记录了肉质扁脑珊瑚早期发育各个时期的形态特征。观察结果表明, 肉质扁脑珊瑚为雌雄同体, 体外受精, 在月圆后第9天开始出现排卵现象, 第11天排卵量达到最大。肉质扁脑珊瑚的卵为粉红色圆球形。在水温27±0.5℃的条件下, 肉质扁脑珊瑚早期发育共经历5个发育阶段17个时期, 受精卵经48h发育为浮浪幼虫, 96h以后开始寻找基底进行附着。本研究为国内首次记录和报道肉质扁脑珊瑚的有性繁殖及胚胎发育过程, 可以为石珊瑚的生态修复积累理论依据。

关键词: 肉质扁脑珊瑚, 有性繁殖, 胚胎发育

Abstract:

Sexual reproduction of Platygyra carnosus was observed preliminarily under the condition of artificial culture. Eggs and sperms of Platygyra carnosus were collected when they were spawned. The morphological characteristics in early development of Platygyra carnosus during different periods were recorded and described. The results showed that the corals were hermaphrodites, in vitro fertilization, and began spawning on the ninth day after the full moon,, then the spawning quantity of corals increased to the maximum on the 11th day after the full moon. The eggs of Platygyra carnosus were spherical in shape and pink in color. The early development process underwent five phases and 17 stages under the conditions of 27±0.5℃. The fertilized eggs developed into planula in 48 h and the larvae began to settle after 96 h. The sexual reproduction and early development of Platygyra carnosus were reported for the first time in China.

Key words: Platygyra carnosus, sexual reproduction, early development