中华管海葵生殖腺的年周期发育  

Development of gonads with annual cycle in Anlactinia sinensis

作　　者：李云朋 王志成 张龙 张威 杜梦达 孙仪 张志峰[1,3] LI Yunpeng;WANG Zhicheng;ZHANG Long;ZHANG Wei;DU Mengda;SUN Yi;ZHANG Zhifeng(Key Laboratory of Tropical Aquatic Germplasm of Hainan Province,Sanya Oceanographic Institution,Ocean University of China,Sanya 572024,China;Chongben Honors College,Ocean University of China,Qingdao 266100,China;College of Marine Life Science,Ocean University of China,Qingdao 266003,China)

机构地区：[1]热带水产种质海南省重点实验室,中国海洋大学三亚海洋研究院,海南三亚572024 [2]中国海洋大学崇本学院,山东青岛266100 [3]中国海洋大学海洋生命学院,山东青岛266003

出　　处：《热带海洋学报》2023年第6期120-126,共7页Journal of Tropical Oceanography

基　　金：中国海洋大学本科生研究发展计划资助项目(202110423574X)。

摘　　要：研究动物的生殖腺发育,可以揭示配子发生过程并为评估其繁殖能力和资源利用提供科学依据。中华管海葵(Aulactinia sinensis)是我国黄海潮间带的优势物种。本文报道了青岛汇泉湾海域生活的中华管海葵生殖腺年周期发育特点,结果显示:中华管海葵外观呈圆柱状,口盘触手排布为6+6+12+24+48型,柱体内隔膜48对;中华管海葵为雌雄异体,雌雄比约为1.25:1;生殖季节所有隔膜均可发育为生殖隔膜并构成生殖腺;根据生殖隔膜中精小囊结构、生殖细胞种类和组成,将其年周期发育过程分为4个时相;确定其成熟排放时期为5—9月,口盘直径为3cm的雌性个体平均怀卵量为188277.91±28861.91。本研究结果为中华管海葵的海域资源循环规律研究提供了基础数据。The study on animal gonad development can reveal the process of gametogenesis,and evaluate the fertility and source utilization of a species.The Chinese tube anemone Aulactinia sinensis is a dominant species in intertidal zone of the Yellow Sea,China.In this study,we reported characteristics of the gonad development with annual cycle in A.sinensis inhabiting Huiquan Bay,Qingdao.The results showed that A.sinensis is cylindrical in appearance,and the tentacle arrangement of oral disc is 6+6+12+24+48.There are 48 pairs of mesenteries inside the column.A.sinensis is dioecism,and populational ratio of female to male is 1.25:1.During the reproductive season,all mesenteries can develop into reproductive mesenteries,and form the gonad.According to the characteristics of spermatogenicvesicle,germ cell types,and composition in the mesenteries,the development process of gonads was divided into four stages,and the gamete spawning occurred between May to September.The fecundity of an individual with the oral disc diameter of 3 cm was 188277.91±28861.91.Our findings will provide basic scientific data for studying the source recycling of A.sinensis.

关 键 词：中华管海葵 形态 生殖腺 年周期发育 繁殖力 

分 类 号：Q954.4[生物学—动物学]