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蒙古裸腹溞与褶皱臂尾轮虫的种间关系
引用本文:陈桃英,王岩,黄长智,胡师衡,张俊.蒙古裸腹溞与褶皱臂尾轮虫的种间关系[J].应用生态学报,2004,15(7):1253-1256.
作者姓名:陈桃英  王岩  黄长智  胡师衡  张俊
作者单位:上海水产大学水域生态学与鱼类营养实验室,上海,200090
基金项目:国家教育部骨干教师资助计划 ( 14 62 ),国家自然科学基金资助项目 ( 3 0 0 70 5 84)
摘    要:在实验室内将蒙古裸腹溞按0.06、0.10、0.30、0.60个·ml^-1的密度与褶皱臂尾轮虫(密度为0.3个·ml。)进行}昆合培养,同时按上述密度分别单种培养了蒙古裸腹溞和褶皱臂尾轮虫作为对照.结果表明,蒙古裸腹溞与褶皱臂尾轮虫之间存在种间竞争,当二者共存时,褶皱臂尾轮虫对蒙古裸腹溞种群产生压制作用,使蒙古裸腹溞在混合培养体系中以很低的密度存在,而褶皱臂尾轮虫种群受蒙古裸腹溞影响不大.通过进一步的饥饿实验发现90%的褶皱臂尾轮虫经过144h饥饿后仍然存活,而经过120h饥饿后的蒙古裸腹溞100%死亡,褶皱臂尾轮虫耐饥饿能力较强是其在与蒙古裸腹溞竞争中获胜的原因之一。

关 键 词:蒙古裸腹  褶皱臂尾轮虫种间关系
文章编号:1001-9332(2004)07-1253-04
修稿时间:2003年4月28日

Interspecific interaction between Moina mongolica and Brachionus plicatilis
CHEN Taoying,WANG Yan,HUANG Changzhi,HU Shiheng,ZHANG Jun.Interspecific interaction between Moina mongolica and Brachionus plicatilis[J].Chinese Journal of Applied Ecology,2004,15(7):1253-1256.
Authors:CHEN Taoying  WANG Yan  HUANG Changzhi  HU Shiheng  ZHANG Jun
Institution:Laboratory of Aquatic Ecology and Fish Nutrition, Shanghai Fisheries University, Shanghai 200090, China. tychlpl@sohu.com
Abstract:In a laboratory experiment, Moina mongolica and Brachionus plicatilis were polycultured at four relatively inoculating densities, i.e., 0.06/0.30, 0.10/0.30, 0.30/0.30 and 0.60/0.30 (ind x ml(-1)/ind x ml(-1)), while M. mongolica monocultured at 0.06, 0.10, 0.30 and 0.60 ind x ml(-1) and B. plicatilis at 0.30 ind x ml(-1) were used as the control. Interspecific interference did exist between M. mongolica and B. plicatilis when these two species coexisted in a microcosm. In the polycultured microcosms, depressed population density of M. mongolica resulted from the coexistence of B. plicatilis, and M. mongolica maintained at extremely low density. In opposite, M. mongolica had negligibly negative influence on the population of B. plicatilis. Further experiment showed that the mortality of M. mongolica deprived of food for 120 h was 100%, while 90% of B. plicatilis survived after 144 h of food deprivation. The relatively strong capacity of B. plicatilis in tolerating starvation may be one of the important reasons for it wins the competition against M. mongolica.
Keywords:Moina mongolica  Brachionus plicatilis  Interspecific interaction  
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