安徽南漪湖大型底栖动物群落结构  

Community Structure of Macrozoobenthos in Lake Nanyi,Anhui

作　　者：陈立婧[1] 彭自然[2] 孙家平 王武[1] 杨义辉[1] 陈华[1] 

机构地区：[1]上海水产大学省部共建水产种质资源发掘与利用教育部重点实验室,上海200090 [2]上海水产大学农业部水产种质资源与养殖生态重点开放实验室,上海200090 [3]宣城市水产局,安徽242000

出　　处：《动物学杂志》2008年第1期63-68,共6页Chinese Journal of Zoology

基　　金：上海市教委水产养殖重点学科基金项目(Y1101);上海市教委高校科学研究一般项目(科05-226);安徽渔业局科学研究基金项目(02-24)联合资助

摘　　要：2002年7月至2004年7月,对安徽南漪湖12个采样点的大型底栖动物群落结构进行了调查研究,共获得大型底栖动物39种,隶属于3门28属。大型底栖动物的现存量在2003年冬季出现最高值,密度最低值出现在2004年夏季。软体动物的现存量占绝对优势,其优势种为河蚬(Corbicula fluminea)、梨形环棱螺(Bellamya purificata)、铜锈环棱螺(B.aeruginosa)和长角涵螺(Alocinma longicornis)。Shannon-Wiener多样性指数、Margalef多样性指数和Pielou指数的年均值分别为0.83、0.51和0.77。南漪湖西部物种数、物种多样性、现存量均较东部高。建闸蓄水后,南漪湖的环境发生了很大的改变,随水深增加,大型底栖动物的现存量呈明显下降的趋势。Macrozoobenthic community was investigated seasonally at 12 sampling stations in Lake Nanyi of Anhui,from July 2002 to July 2004 for providing academic data for rational utilization of aquatic resources and ecological strategy for fishery resources.A total of 39 species were obtained.The highest biomass and density were presented in the winter of 2003 and the lowest density in the summer of 2004.Mollusca was by far the most dominant group,its dominant species were Corbicula fluminea,Bellamya purificata,B.aeruginosa and Alocinma longicornis.The annual average value of Shannon-Wiener diversity index,Margalef diversity index and Pielou index were 0.83,0.51 and 0.77 respectively.The results showed that the species number,biodiversity,standing stock of macrozoobenthos community were much higher in the west area than in the east area of the lake.After the construction of a reservoir,the ecological characteristics of macrozoobenthos in the lake changes very much,which results in the significant drop of the standing stock of the macrozoobenthos.

关 键 词：南漪湖 大型底栖动物 群落结构 多样性 

分 类 号：Q958.8[生物学—动物学]