资源描述:
《瓯江口水域春、夏季浮游动物群落结构特征.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第35卷第3期浙江海洋学院学报﹙自然科学版﹚Vol.35No.3第320期16年5月JournalofZhejiangOceanUniversity﹙NaturalScience﹚May,2016文章编号:1008-830X﹙2016﹚03-0201-06瓯江口水域春、夏季浮游动物群落结构特征1122张亚洲,蒋日进,李凯,范正利(1.浙江省海洋水产研究所,农业部重点渔场渔业资源科学观测实验站,浙江省海洋渔业资源可持续利用技术研究重点实验室,浙江舟山316021;2.温州市渔业技术推广站,浙江温州325000)摘要:根据2014
2、年春季(5月)和夏季(8月)瓯江口浮游动物调查资料,对浮游动物的种类组成、优势种、分布和多样性进行了研究。结果表明,共鉴定出浮游动物42种,隶属于11个大类,其中桡足类最多(10种);春季主要优势种为贝氏拟线水母和长额刺糠虾,夏季主要优势种为长额刺糠虾和长尾类糠虾幼虫;瓯江口水域春季和夏季浮游动物总个体数量均较低,333春季总个体平均丰度仅为1.41ind/m,变化范围为0.14~7.66ind/m,夏季总个体平均丰度仅为0.56ind/m,变化范围为30.12~2.19ind/m。聚类分析表明春季可以将浮游动物划分为三个群落
3、,夏季可以将浮游动物划分为两个群落。相关性分析得出,影响春季和夏季瓯江口浮游动物群落结构的主要环境因子为盐度。关键词:浮游动物;丰度;聚类分析中图分类号:S932.8文献标识码:ACharacteristicsofZooplanktonCommunityStructureintheOujiangEstuaryduringSpringandSummerZHANGYa-zhou1,JIANGRi-jin1,LIKai2,etal﹙1.MarineFisheriesResearchInstituteofZhejiangProvinc
4、e,KeyResearchStationforFisheriesResourcesofMainFishingGround,MinistryofAgriculture,KeyLaboratoryofSustainableUtilizationofTechnologyResearchforFisheryResearchofZhejiangProvince,Zhoushan316021;2.WenzhouFisheriesTechnologyExtensionStation,Wenzhou325000,China﹚Abstract:
5、BasedonthesamplescollectedfromtheOujiangEstuary,thespeciescomposition,quantitativedistribution,dominantspeciesanddiversityofthezooplanktonwasstudiedinSpring﹙May﹚andSummer﹙Au-gust﹚,2015.Theresultsshowedthat42speciesbelongingto11groupswereidentifiedfromthesamples,amon
6、gwhichCopepodawasthemostdiverse﹙10species﹚.ThedominantspecieswereNemopsisbacheiandAcanthomy-sislongirostrisinSpring,andthedominantspecieswereA.longirostrisandMysidacealarvainSummer.TheindividualnumbersofzooplanktonintheOujiangEstuaryduringSpringandSummerwerelow,thea
7、bundance33ofzooplanktonrangedfrom0.14to7.66ind/mwithanaverageof1.41ind/minSpringandtheabundanceof33zooplanktonrangedfrom0.12to2.19ind/mwithanaverageof0.56ind/minSummer.TheresultsshowedclusteranalysisdividedthezooplanktonintothreeassemblagesinSpring,andtwoassemblages
8、inSummer.Correlationanalysisshowedthatsalinitywasthemainfactorsinfluencingthecommunitystructureofzooplank-tonintheoujiangestuaryduringspri