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安徽菜子湖大型底栖动物的群落结构特征
引用本文:徐小雨,周立志,朱文中,许仁鑫,曹玲亮,陈锦云,王勋.安徽菜子湖大型底栖动物的群落结构特征[J].生态学报,2011,31(4):943-953.
作者姓名:徐小雨  周立志  朱文中  许仁鑫  曹玲亮  陈锦云  王勋
作者单位:1. 安徽大学生命科学学院生物多样性与湿地生态研究所,安徽省生态工程与生物技术重点实验室,合肥,230039
2. 安徽安庆沿江湿地自然保护区,安庆,246001
基金项目:安庆市中国-欧盟生物多样性示范项目(00056783);安徽大学人才队伍建设项目
摘    要:近年来,长江中下游迅速发展的淡水渔业对湖泊湿地产生严重扰动,湖泊生态系统的结构和功能受到影响。为揭示大型底栖动物群落对湖泊扰动的响应,对安徽菜子湖群不同养殖程度的白兔湖、嬉子湖和菜子湖3个湖区进行了大型底栖动物周年定量调查。全湖设置49个样点,调查7次。共采集到大型底栖动物34属39种,优势种为摇蚊(Tendipes sp.)、苏氏尾鳃蚓(Branchiura sowerbyi)、长角涵螺(Alocinma longicornis)。大型底栖动物密度为(55.20±76.25) 个/m2,生物量为(19.56±65.37) g/m2,其中白兔湖、菜子湖、嬉子湖密度分别为(63.43±52.76)、(36.44±34.49)和(79.77±118.90) 个/m2,生物量分别为(17.48±28.24)、(21.70±39.44)和(4.94±18.46) g/m2。嬉子湖的节肢动物密度和生物量均显著大于白兔湖和菜子湖(P<0.01),而白兔湖和菜子湖的软体动物密度和生物量均显著大于嬉子湖(P<0.01)。聚类分析表明,白兔湖和菜子湖的大型底栖动物的群落结构相似性较高,但与嬉子湖养殖区的相似性较低。白兔湖和菜子湖大型底栖动物的Shannon-Wiener指数分别为2.25、1.71,嬉子湖仅为1.44。与2001年的资料相比,大型底栖动物的优势种发生了改变,群落多样性显著降低。水产养殖、修建堤坝等人为干扰已经对菜子湖群大型底栖动物群落结构产生了较大的影响,发展可持续渔业将是湖泊生态系统保护的重要途径。

关 键 词:大型底栖动物  群落结构  生物量  生物多样性  菜子湖群
收稿时间:2010/1/12 0:00:00
修稿时间:6/3/2010 12:00:00 AM

Community structure of macrozoobenthos in Caizi Lake, China
XU Xiaoyu,ZHOU Lizhi,ZHU Wenzhong,XU Renxin,CAO Lingliang,CHEN Jinyun and WANG Xun.Community structure of macrozoobenthos in Caizi Lake, China[J].Acta Ecologica Sinica,2011,31(4):943-953.
Authors:XU Xiaoyu  ZHOU Lizhi  ZHU Wenzhong  XU Renxin  CAO Lingliang  CHEN Jinyun and WANG Xun
Institution:Institute of Biodiversity and Wetland Ecology, School of Life Science, Anhui University; Anhui Key Laboratory of Eco-engineering and Bio-technique, Hefei 230039, China;Institute of Biodiversity and Wetland Ecology, School of Life Science, Anhui University; Anhui Key Laboratory of Eco-engineering and Bio-technique, Hefei 230039, China;Wetland Nature Reserve along Yangtze River in Anqing, Anqing 246001, China;Institute of Biodiversity and Wetland Ecology, School of Life Science, Anhui University; Anhui Key Laboratory of Eco-engineering and Bio-technique, Hefei 230039, China;Institute of Biodiversity and Wetland Ecology, School of Life Science, Anhui University; Anhui Key Laboratory of Eco-engineering and Bio-technique, Hefei 230039, China;Institute of Biodiversity and Wetland Ecology, School of Life Science, Anhui University; Anhui Key Laboratory of Eco-engineering and Bio-technique, Hefei 230039, China;Institute of Biodiversity and Wetland Ecology, School of Life Science, Anhui University; Anhui Key Laboratory of Eco-engineering and Bio-technique, Hefei 230039, China
Abstract:In the middle and low floodplain of Yangtze River the increasing aquiculture had disturbed the lake wetlands,seriously affected the structure and function of the lake wetland ecosystems.In order to have an insight into the macrozoobenthic community in response to the anthropogenic disturbance,we surveyed the density and biomass of the macrozoobenthos of Caizi Lake group(Anqing City,Anhui Province) through 49 sampling sites.By seven surveys in 2008 and 2009,a total of 39 macrozoobenthic species were found,am...
Keywords:macrozoobenthos  community structure  biomass  biodiversity  Caizi Lake group
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