| 南京玄武湖隆腺溞(Daphnia carinata)牧食对浮游植物的影响 |
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| 引用本文： | 张镇,陈非洲,周万平,刘正文.南京玄武湖隆腺溞(Daphnia carinata)牧食对浮游植物的影响[J].湖泊科学,2009,21(3):415-419. |
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| 作者姓名： | 张镇 陈非洲 周万平 刘正文 |
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| 作者单位： | 1. 中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室,南京,210008;中国科学院研究生院,北京,100049
2. 中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室,南京,210008 |
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| 基金项目： | 中国科学院领域前沿课题，国家自然科学基金 |
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| 摘 要： | 隆腺溞(Daphnia carinata)是许多湖泊的常见大型浮游动物,习居于富营养的水域中,以浮游植物为食,且滤食效率较高.通过浮游动物添加实验,研究了隆腺潘对南京玄武湖叶绿素和浮游植物群落结构的影响.结果表明,在隆腺涵组,浮游植物密度较对照组降低了83%,叶绿素较对照组下降了81%,氮、磷营养盐与叶绿素的相关性不显著.浮游植物的群落结构较对照组也发生了很大变化,蓝藻、绿藻和硅藻的比例有显著上升,隐藻呈显著下降趋势,金藻、甲藻和裸藻在实验结束时已没有检出.说明隆腺潘的摄食能有效控制浮游植物的生物量,可对浮游植物的群落结构产生显著影响.
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| 关 键 词： | 隆腺涵 浮游植物 牧食 玄武湖 |
| 收稿时间： | 2008/7/30 0:00:00 |
| 修稿时间： | 2008/10/6 0:00:00 |
Effects of Daphnia carinata grazing on the phytoplankton of Lake Xuanwu, Nanjing |
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| ZHANG Zhen,CHEN Feizhou,ZHOU Wanping and LIU Zhengwen.Effects of Daphnia carinata grazing on the phytoplankton of Lake Xuanwu, Nanjing[J].Journal of Lake Science,2009,21(3):415-419. |
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| Authors: | ZHANG Zhen CHEN Feizhou ZHOU Wanping and LIU Zhengwen |
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| Institution: | 1: State Key Laboratory of Lake Science and Environment;Nanjing Institute of Geography and Limnology;Chinese Academy of Sciences;Nanjing 210008;P.R.China;2: Graduate School of Chinese Academy of Sciences;Beijing 100049;P.R.China |
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| Abstract: | Daphnia carinata is a large zooplankter in many eutrophic lakes and has a high efficiency to graze phytoplankton. The effects of Daphnia carinata on chlorophyll-a and the community structure of phytoplankton of Lake Xuanwu in Nanjing was studied experimentally. The results showed that the density of phytoplankton decreased 83% and the chlorophyll-a decreased 81% in the Daphnia carinata treatment comparing with the control. There is no significant relationship between nitrogen, phosphorus and chlorophyll-a i... |
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| Keywords: | Daphnia carinata phytoplankton grazing Lake Xuanwu |
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