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时间:2017-12-07
《不同粒径和不同浓度清洁疏浚物对2种海洋微藻生长的影响》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、生态与农村环境学报2013,29(6):773—778Journa2ofEcologyandRuraZEnvironment注士不同粒径和不同浓度,月口疏浚物对2种海洋微藻生长的影响董鹏,徐韧,刘材材,刘汉奇,秦玉涛',邓邦平,刘守海’(1.上海海洋大学水产与生命学院,上海201306;2.国家海洋局东海环境监测中心,上海200137;3.国家海洋局赤潮灾害立体监测技术与应用重点实验室,上海200090)摘要:采用室内模拟试验研究了不同粒径和不同浓度悬浮清洁疏浚物对2种常见海洋微藻小球藻(Chlorellasp.)和新月菱形藻(Nitzschiacloster
2、ium)生长的影响。结果表明,在8d的试验周期里,与对照组相比,不同浓度清洁疏浚物对2种海洋微藻生长的影响均达极显著水平(P88~125m粒径范围内生长的藻细胞受影响最小,0~16m粒径范围内生长的藻细胞受影响最大。悬浮清洁疏浚物对2种海洋微藻比生长速率的抑制作用明显,延缓了最大比生长速率出现的时间。2种海洋微藻对悬浮清洁疏浚物的敏感性存在差异,小球藻对悬浮清洁疏浚物的反应更加迅速。关键
3、词:清洁疏浚物;小球藻;新月菱形藻;浓度;粒径;影响中图分类号:Q948.8文献标志码:A文章编号:1673—4831(2013)06—0773—06EfectsofCleaningDredgedMaterialonGrowthofTwoSpeciesofMarineMicroalgaeasAffectedbyItsParticleSizeandConcentration.DONGPeng,,XURen',LIUCai—cai,,LIUHan—qi',QINYu—tao',DENGBang—ping,LIUShou—hai(1.CollegeofFisheri
4、esandLifeScience,ShanghaiOceanUniversity,Shanghai201306,China;2.EastChinaSeaEnvironmentalMonitoringCenter,StateOceanicAdministration,Shanghai200137,China;3.KeyLa—boratoryofIntegratedMonitoringandAppliedTechnologyforMarineHarmfulAlgalBlooms,StateOceanicAdministration,Shanghai200090,C
5、hina)Abstract:Asimulationtestwasca~iedoutinlaboratorytostudyeffectsofcleaningdredgedmaterialongrowthoftwospeciesofmarinemicroalgae(Chlorellasp.andNitzschiaclosterium)asaffectedbyitsparticlesizeandconcentration.Re—suitsshowthatafter8daysofincubation,theeffectofthematerialsongrowthoft
6、hetwospeciesofmarinemicroalgaewasverysignificantregardlessoftheirconcentration(P<0.01).Inthecasethatthesuspendedcleaningdredgedmaterialswereinthesamerangeofparticlesize,butvariedinconcentrationintherangeof1—7g·L~,theeffectofinhibitinggrowthofthemicroalgaeintensifiedwiththerisingconc
7、entration.Withthesuspendedcleaningdredgedmaterialsdeclininginparticlesize,thetwospeciesofmarinemicroalgaeshowedadownwardtrendincelldensity.Theeffectwastheleastwhenthema—terialwasintherangeof>88—125minparticlesize,andthegreatestwhenthematerialintherangeof0—16minpar—ticlesize.Thesuspe
8、ndedcleaningdredged
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