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1、動(dòng)物學(xué)雜志ChineseJournalofZoology2008,43(1):63～68安徽南漪湖大型底棲動(dòng)物群落結(jié)構(gòu)①②③①①①陳立婧彭自然孫家平王武楊義輝陳華(①上海水產(chǎn)大學(xué)省部共建水產(chǎn)種質(zhì)資源發(fā)掘與利用教育部重點(diǎn)實(shí)驗(yàn)室上海200090;②上海水產(chǎn)大學(xué)農(nóng)業(yè)部水產(chǎn)種質(zhì)資源與養(yǎng)殖生態(tài)重點(diǎn)開放實(shí)驗(yàn)室上海200090;③宣城市水產(chǎn)局安徽242000)摘要:2002年7月至2004年7月,對(duì)安徽南漪湖12個(gè)采樣點(diǎn)的大型底棲動(dòng)物群落結(jié)構(gòu)進(jìn)行了調(diào)查研究,共獲得大型底棲動(dòng)物39種,隸屬于3門28屬。大型底棲動(dòng)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(dòng)物的現(xiàn)存量占
2、絕對(duì)優(yōu)勢(shì),其優(yōu)勢(shì)種為河蜆(Corbiculafluminea)、梨形環(huán)棱螺(Bellamyapurificata)、銅銹環(huán)棱螺(B1aeruginosa)和長(zhǎng)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(dòng)物的現(xiàn)存量呈明顯下降的趨勢(shì)。關(guān)鍵詞:南漪湖;大型底棲動(dòng)物;群落結(jié)構(gòu);多樣性中圖分類號(hào):Q958文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):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
