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1、动物学杂志ChineseJournalofZoology2008,43(1):63～68安徽南漪湖大型底栖动物群落结构①②③①①①陈立婧彭自然孙家平王武杨义辉陈华(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)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
2、绝对优势,其优势种为河蚬(Corbiculafluminea)、梨形环棱螺(Bellamyapurificata)、铜锈环棱螺(B1aeruginosa)和长角涵螺(Alocinmalongicornis。Shannon2Wiener多样性指数、Margalef多样性指数和Pielou指数的年均值分别为0183、0151和0177。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。关键词:南漪湖;大型底栖动物;群落结构;多样性中图分类号:Q958文献标识码:A文章编号:025023263(200
3、8)01263206CommunityStructureofMacrozoobenthosinLakeNanyi,Anhui①②③①①①CHENLi2JingPENGZi2RanSUNJia2PingWANGWuYANGYi2HuiCHENHua(①KeyLaboratoryofExplorationandUtilizationofAquaticGeneticResources,ShanghaiFisheriesUniversity,MinistryofEducation,Shanghai200090;②KeyLaboratoryofAquaticGeneticResourcesan
4、dAquaculturalEcologyCertificatedbytheMinistryofAgriculture,ShanghaiFisheriesUniversity,Shanghai200090;③FisheriesBureauofXuancheng,Anhui242000,China)Abstract:Macrozoobenthiccommunitywasinvestigatedseasonallyat12samplingstationsinLakeNanyiofAnhui,fromJuly2002toJuly2004forprovidingacademicdataforr
5、ationalutilizationofaquaticresourcesandecologicalstrategyforfisheryresources.Atotalof39specieswereobtained.Thehighestbiomassanddensitywerepresentedinthewinterof2003andthelowestdensityinthesummerof2004.Molluscawasbyfarthemostdominantgroup,itsdominantspecieswereCorbiculafluminea,Bellamyapurificat
6、a,B.aeruginosaandAlocinmalongicornis.TheannualaveragevalueofShannon2Wienerdiversityindex,MargalefdiversityindexandPielouindexwere0183,0151and0177respectively.Theresultsshowedthatthespeciesnumber,biodiversity,standingstockofmacrozoobenthoscommunityweremuchhigherinthewestareathanintheeastareaofth
7、elake.Aftertheconstructionofareservoir,theecologicalcharacteristicsofmacrozoobenthosinthelakechangesverymuch,whichresultsinthesignificantdropofthestandingstockofthemacrozoobenthos.Keywords:LakeNanyi;Macrozoobenthos;Communitystruct
