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1、動物學雜志ChineseJournalofZoology2008,43(1):63～68安徽南漪湖大型底棲動物群落結構①②③①①①陳立婧彭自然孫家平王武楊義輝陳華(①上海水產大學省部共建水產種質資源發(fā)掘與利用教育部重點實驗室上海200090;②上海水產大學農業(yè)部水產種質資源與養(yǎng)殖生態(tài)重點開放實驗室上海200090;③宣城市水產局安徽242000)摘要:2002年7月至2004年7月,對安徽南漪湖12個采樣點的大型底棲動物群落結構進行了調查研究,共獲得大型底棲動物39種,隸屬于3門28屬。大型底棲動物的現(xiàn)存量在2003年冬季出現(xiàn)最高值,密度最低值出現(xiàn)在2004年夏季。軟體動物的現(xiàn)存量占
2、絕對優(yōu)勢,其優(yōu)勢種為河蜆(Corbiculafluminea)、梨形環(huán)棱螺(Bellamyapurificata)、銅銹環(huán)棱螺(B1aeruginosa)和長角涵螺(Alocinmalongicornis。Shannon2Wiener多樣性指數(shù)、Margalef多樣性指數(shù)和Pielou指數(shù)的年均值分別為0183、0151和0177。南漪湖西部物種數(shù)、物種多樣性、現(xiàn)存量均較東部高。建閘蓄水后,南漪湖的環(huán)境發(fā)生了很大的改變,隨水深增加,大型底棲動物的現(xiàn)存量呈明顯下降的趨勢。關鍵詞:南漪湖;大型底棲動物;群落結構;多樣性中圖分類號:Q958文獻標識碼:A文章編號: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
