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1、东海管水母类生态研究第27卷增刊2003年9月水产JOURNALOFFISHERIESOFCHINAVo1.27,Supp1.Sep.,2003文章编号:1000—06l5(2003)增刊一0082—09东海管水母类生态研究徐兆礼,张金标,蒋玫(1.中国水产科学研究院东海水产研究所农业部海洋与河口渔业重点开放实验室,上海200090;2.国家海洋局第三海洋研究所,福建厦门361005)摘要:根据1997—2000年东海23.30～33~00N,118.30～128.00E海域4个季节海洋调查资料,对东海
2、管水母类种类组成及优势种,数量分布,生态类群等作了探讨.结果表明:鉴定到种的管水母类有40种,其中宽板无棱水母(Sulculeolariabigelowi)为东海区首次记录;主要优势种有五角水母(Muggiaeaatlantica),双生水母(Diphyeschamissonis)和拟细浅室水母(Lensiasubtiloides)等.管水母类总丰度春季最高(491ind?10?mI3),夏季最低(66ind-10?m);平面分布不均匀,一般东海近海高于外海和台湾海峡海域.东海管水母类可分为3个生态类群
3、,数量上以近岸低盐广温类群占优势,65%的种类由广高温高盐类群构成.关键词:管水母类;生态学;东海中图分类号:Q958.8文献标识码:AEcologicalstudyonSiphonophoraintheEastChinaSeaXUZhao.1i,ZHANGJin—biao,JIANGMei(1.KeyandOpenLaboratoryofMarineandEstuaryFisheries,MinistryofAgriculture,EastChinaSeaFisheriesResearchInstit
4、ute,ChineseAcademyofFisheriesSciences,Shanghai200090,China;2.ThirdInstituteofOceanography,StateOceanicAdministration,Xiamen361005,China)Abstract:Basedonthedataacquisitionedintheseasonalsurveyconductedfromtheseasonsofspringthroughwinterintheperiodof1997to
5、2000intheEastChinaSea(23.30一33.00N,118.30一128.00E),thecommunitycompositionanddominantspeciesofSiphonophoraaswellasitsabundancedistributionandecologicalcommunityintheseawerestudied.Forty(40)speciesofSiphonophorawereidentified,arrmngwhichSulculeolariabigel
6、owi(Sears)wasnewlydiscoveredinthesea,andMuggiaeaatlantica,DiphyeschamissonisandLensiasubtiloides,etcwereclassifiedasdominantspecies.Mostofspecieswereappearinginoffseaintheseasonsofspring,autumnandwinter.Insummerseasonmorespecieswereinhabitableinshorewate
7、rofthesouth.errlpartoftheseaandthemostdistributedinoff-seaandtheTaiwanStrait.However,intheinshorewatersofthenorthernpartofthesea,thenumberofspeciesbecamelessinthewholeyearround.AsSiphonophoraWasverysusceptibletothetemperatureandsalimtyofseawateranditsran
8、geofadaptabilitynotwide,itWasfavourabletorelativelystableenvironmentofseawater.Bothspringandautumnseasonswereitsdistributionalseasons,andsoSiphonophoraWaswidelydistributedinKuroshioandTaiwanWarmCurrentintheseasonofwinter,b
