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三种甲壳纲浮游动物与萼花臂尾轮虫的种间关系
引用本文:张文萍,徐吉洋,李少南.三种甲壳纲浮游动物与萼花臂尾轮虫的种间关系[J].动物学杂志,2016,51(4):561-572.
作者姓名:张文萍  徐吉洋  李少南
作者单位:浙江大学农药与环境毒理研究所,浙江大学农药与环境毒理研究所,浙江大学农药与环境毒理研究所
基金项目:浙江省自然科学基金(项目编号:LY12B07008)
摘    要:为研究隆线溞(Daphnia carinata)、锯缘真剑水蚤(Eucyclops serrulatus)及中华薄壳介(Dolerocypris sinensis)3种甲壳纲动物种群与萼花臂尾轮虫(Brachionus calyciflorus)种群的相互关系,作者分别将其以不同接种密度与萼花臂尾轮虫(接种密度为350 ind/L)进行混合培养。轮虫种群密度增长率自混合培养后的第3或4天开始下降,且随着甲壳纲动物接种密度的增加轮虫种群受到的抑制作用增大。当轮虫接种密度为350 ind/L时,3种甲壳纲动物的种群变化有所不同:(1)当隆线溞起始密度低于150 ind/L时,其种群生长受到轮虫的明显抑制;而当隆线溞起始密度达到350 ind/L时,其在混合培养与单独培养下的种群变化基本一致,这表明轮虫对隆线溞种群生长无抑制作用。(2)与隆线溞不同,锯缘真剑水蚤和中华薄壳介在混合培养下的种群数量持续增长。但与锯缘真剑水蚤相比,中华薄壳介在混合培养下的种群增长速度较慢。

关 键 词:隆线溞  萼花臂尾轮虫  锯缘真剑水蚤  中华薄壳介  相互作用  
收稿时间:4/7/2015 12:00:00 AM
修稿时间:7/4/2016 12:00:00 AM

Interspecific Interaction between Three Species of Crustacean Zooplankton and Rotifer Brachionus calyciflorus
ZHANG Wen-Ping,XU Ji-Yang and LI Shao-Nan.Interspecific Interaction between Three Species of Crustacean Zooplankton and Rotifer Brachionus calyciflorus[J].Chinese Journal of Zoology,2016,51(4):561-572.
Authors:ZHANG Wen-Ping  XU Ji-Yang and LI Shao-Nan
Institution:Zhejiang University,Zhejiang University and Zhejiang University
Abstract:Three species of crustacean zooplankton i.e. Daphnia carinata, Eucyclops serrulatus, Dolerocypris sinensis,Sand Brachionus calyciflorus were cultured at seven initial densities with Brachionus calyciflorus inoculated at density of 0.35 ind/mL. The controls were made by mono-culturing of these species at corresponding inoculating densities, respectivly. The results showed that the population of B.calyciflorus was suppressed by all of the three species of crustacean zooplankton. The suppression enhanced with initial inoculation densities of them and caused extinction of the B.calyciflorus at the end of some cultures. The population of D.carinata, E. serrulatus, and D. sinensisSchanged differently, however, compared with their respective controls, as they were cultured with the B.calyciflorus. For D. carinata, the population was inhibited by the B. calyciflorus at lower inoculation densities and the inhibition became negligible with increase of the inoculation densities. This suggested a competitive relationship between the D. carinata and the D. carinata, and the D. carinata was superior to the B.calyciflorus in this relations. Different in behavior from that of the D. carinata, both of the E. errulatus and the D. sinensisSwere promoted in population as they were cultured with the B.calyciflorus. The extent of promotion for the D. sinensis was found higher the extent for the E. errulatus. Result of present study denied existence of competitive relation between E.errulatus and B.calyciflorus and between D. sinensis and B.calyciflorus.
Keywords:Interspecific interaction  Daphnia carinata  Eucyclops serrulatus  Dolerocypris sinensisS  Brachionus calyciflorus  population dynamic
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