摘要
ThemacrobenthiccommunityoftheXiaoqingRiverEstuaryandtheadjacentseawaterswasinvestigatedinMayandNovember2008,August2009,andMayandSeptember2010,respectively.Atotalof95speciesofmacrobenthoswereidentifiedinthefivecruisesandmostofthemwerepolychaetes(46.39%),mollusks(28.86%)andcrustaceans(20.62%).TheShannon-Wienerindexofmacrobenthoswaslowerthan2in67%sites.Alongthestreamchannel,estuaryandthecoastalwaters,thespeciesofpolychaetesreducedgradually,whiletheabundanceincreasedatfirstandthendecreased.Theabundancewasthebiggestatregionswithsalinityof520intheestuary.Thespeciesandabundanceofmollusksandcrustaceansincreasedgradually.Asforseasonaldistribution,thespecies,abundanceandbiomasswerehigherinspringandlowerinsummerandautumn.ContemporaneouslycomparedwithLaizhouBayandYellowRiverEstuary,thespeciesofmacrobenthosappearedintheXiaoqingRiverEstuaryweremuchless,whilethepercentageofpolychaeteswashigher.AbundanceandbiomasswerehigherinXiaoqingRiverestuary,thenconsequentlyfollowedbyLaizhouBayandYellowRiverEstuary.ThedominantspeciesinXiaoqingRiverEstuarywaspolychaete,andLayzhouBaymollusk.ThecommunitystructurecharacteristicsofmacrobenthosintheXiaoqingRiverEstuaryrevealedasignificantpollutionstatusinthisregion.
出版日期
2013年03月13日（中国期刊网平台首次上网日期，不代表论文的发表时间）
