摘要
Xiangshanbayisanarrowsemi-closedbayandsituatedonthenorthwesterncoastoftheEastChinaSea.Overpastdecades,ithasbecometoamajorbaywithintensivehumanactivities,denseurbanizedarea,andpoorwaterquality.Theaimofthispaperwastorevealtheecologicalstatusthroughtheelucidationofthespeciescomposition,abundance,biomassanddiversityofmacrobenthosinthisbay.SixintertidalsectionsweresurveyedfromJanuary2007toNovember2008quarterly.SectionsTG,HDandXHarelocatedinthethreeinnerbays,sectionsQJandWSarelocatednearthethermalpowerplants,andsectionXXislocatedattheouterpartofXiangshanBay.Greatvariationsinmacrobenthoscommunitywereindentified,andthespeciescompositionofthecommunityinthepresentstudyshowedthedominanceintheorderofmolluscs(bivalvesandgastropods),crustaceansandothers,andonlyfewPolychaetawererecorded.Onlythreedominantspecies,Littorinabrevicula,Ilyplaxtansuiensis,andCerithideacingulatawerecollectedinallthesections,andatotalof19dominantspecieswererecordedonlyinonesection.Two-wayANOVAanalysesofabundanceindicatedthatthereweresignificantdifferencesamongsectionsorseasons.Shannon-Wienerdiversityindex(H’)haditsmaximum(2.45)insectionQJ,andminimum(1.76)insectionTG.Multipleirregulark-dominanceplotsclearlyshowedthatthestudyareawaspollutedandthemacrobenthoscommunitywasunderstress.WeconcludethatthemacrobenthosofXiangshanBayhavebeendisturbedbyhumanactivities,especiallyattheinteriorbay.
出版日期
2015年02月12日（中国期刊网平台首次上网日期，不代表论文的发表时间）
