简介：Thisarticlediscussestheinteractionofphthalatesandoceanalgaebasedonthestandardappraisalmethodofchemicalmedicineforalgaetoxicity.Throughtheexperimentsonthetoxiceffectsofdimethyl(o-)phthalate(DMP),diethyl(o-)phthalate(DEP),dibutyl(o-)phthalate(DBP)onoceanalgae,the50%lethalconcentrationofthethreesubstancesin48hand96hforplaeodectylumtricornutum,platymonassp,isochrysisgalbana,andskeletonemacostatumisobtained.TolerancelimitsoftheaboveoceanalgaeofDMP,DEP,andDBParediscussed.

简介：AstudywasmadeonthepolycultureoftheredalgaeGracilariatenuistipitataChangetXiaf.LiuiZhangetXia,f.nov.,theshrimpPenaeuspenicillatusAlcockandthemudcrabScyllaserrata(Forskal).Thephotosynthesisofthealgaeproducestheoxygenonwhichtheshrimpandthecrabbreathe.Thealgaearethereproductiveplaceoftheorganismforthefoodoftheshrimpandthecarb,alsoistheshelteroftheshrimpandthecrab.Theshrimpandthecrabregardthealgaeasthevegetable

简介：Thisarticlediscussestheinteractionofanilineandoceanalgaebasedonthestandardappraisalmethodofchemicalmedicineforalgaetoxicity.Itisshowedbyexperimentalresultsthatanilinehasprettytoxiceffectsonalgae.Suspendedsubstancesinwatercanoffsetsomeeffectsofaniline.Italsodiscussesthedynamicconstantoffirstorderdegradationreactionrateofalgaeonanilinefromthepointofviewofchemicaldynamics.

简介：在这研究，海绵被用来在一个有限空格使驯养的污泥微生物不能调动，形成能够水藻的一个使不能调动的简历系统；microcystins移动。水藻上的移动效果，microcystins；这个简历系统的UV260；水藻移动的机制被学习。结果证明从污水处理工厂的活跃污泥能在驯服的7d以后把水藻从一个发育营养正常促进剂湖的水移开。为水藻的移动效率，有机物；当驯养的污泥在海绵上被使不能调动时，microcystins增加了。当水力的保留时间(HRT)是5h时，移动水藻评价，microcystins；UV260是90%，94.17%；84%分别地。使不能调动的简历系统主要由细菌组成了，Ciliata；Sarcodina原生动物门；轮虫metazoans。由菌胶团细菌的海藻的分解；由微动物的preying是海藻的移动的二个主要模式，它发生在二步：首先，由菌胶团的吸收；第二，由菌胶团细菌的分解；微动物的捕食性。

简介：

简介：Asimpleinstrumentforthereal-timemeasurementofalgaeconcentrationandmappingdescribed.Theinstrumentusesapulsedshortarcxenonflashlampastheexcitedlightsources.Boththeexcitinglightandthefluorescencefromalgaechlorophyllaretransmittedalongafiberbundle.Themeasurementsensivitivityisanalyzedandtheexperimentresultisgiven.Theinstrumentispracticaltoin-situmeasurementatsea.

简介：以便在ships'ballast水上验证电解处理的有效性，实验被一个实验性系统在实验室执行。当轮船的碎石流水，有不同水藻的不同集中的未加工的海水和海水被模仿。如果它被电解与5mg/L的起始的剩余氯集中对待，在未加工的海水的Thealgae能被打死。如果有一个种水藻(Nitzschiaclosterum，Dicrateriaspp，或Pyramidomonnassp.10~5cells/mL)的海水被电解与5mg/L的起始的剩余氯集中对待，水藻能被消毒。如果有一个种水藻(Dunaliellasp，Platymonas或小球藻spp)的海水被electrolyzing直接与4mg/L的起始的剩余氯集中对待，立刻的死亡随着不同水藻的集中变化。在72个小时以后，在所有对待的样品，然而，没有现场海藻的房间，发现。

简介：Thepaperdealswiththeremovalandcontrolofredtidealgae,PhaeoecystisglobosaandAlexandriumtamarensebybiquaternaryammoniumsaltalgaecide.Theresultsshowthattheefficientconcentrationofbiquaternaryammoniumsalttocontrolthetwoalgaesin96his0.8mg·L-1and0.4mg·L-1,respectively.Itisfoundthatbiquaternaryammoniumsalthashighefficiencyandlongerdurationofactionintheremovalandcontrolofalgae.BiquaternaryammoniumsaltmightbeanexcellentalgaecidetocontrolHAB.

简介：Theprocessofadsorptionofmetalionsbyimmobilizedmarinealgaewiththeexistenceofclaywasinvestigated.Itcanbenotedfromtheresultsthat,aftermixingwithclay,theadsorptionrateincreasesrapidlywiththeincreasingamountofthemarinealgae.WhenpH=5,thebestratiobetweentheclayandthemarinealgaeis1:4forPb2+.TheresultofinsituhandlingofthewastewatercontainingheavymetalsshowsthattheaverageadsorptionratesofheavymetalironsCu2+,Cd2+,Pb2+andNi2+areallover70%.

简介：Westudiedtheeffectsofnitrogen(N)andphosphorus(P)supplyonFv/Fm(maximalquantumyieldofphotosystemII)inthealgaeChaetocerosdebilis,Dicrateriainornata,PlatymonassubcordiformisandHeterosigmaakashiwotodeterminethesensitivityofFv/FmtoP-limitationofthefourspecies.ObviousdecreaseofFv/FmvaluewasmonitoredinperiodsofP-depletion,thedecreaseshowingdifferentmagnitudesamongalgalspecies.AmorecleardecreaseofFv/FminPlatymonassubcordiformisandHet-erosigmaakashiwowasobserved,comparedwiththatinChaetocerosdebilisandDicrateriainornata.AftertheresupplyofP,theindexFv/Fmofthefourspeciesallrecoveredquicklyin24h.CelldivisionwasmaintainedandchlorophyllcontentcontinuedtoincreaseuntiltheendoftheexperimentinPlatymonassubcordiformisandHeterosigmaakashiwo,whileinChaetocerosdebilisandDicrateriainornata,thedivisionstoppedinthelaterperiodwhenthegrowthoforganismscameintothestationaryphase.ThemostobviousrespondofchlorophyllcontenttoP-additionswasobservedinHet-erosigmaakashiwoculturein24h.ThesensitivityofFv/Fmtonutrientlimitationsisdifferentamongalgalspecies,andmuchshouldbedonetoimprovetheapplicationofthisindex.

简介：

简介：布朗水藻(Chromista，Ochrophyta，Phaeophyceae)是多细胞的水藻的一个大组在海洋生态系统和生物多样性起重要作用。然而，为学习他们新陈代谢的特征妨碍了的种系发生的进化和小说的差的分子的库在这个领域里进行。在这研究，我们在中国定序棕色的水藻的18主要种类的denovotranscriptome，盖住六份订单和七个家庭，用高产量的定序站台IlluminaHiSeq2000。从这的transcriptome数据18种类和Ectocarpussiliculosus和Phaeodactylumtricornutum的公开可得到的染色体数据，我们识别了108原子产生orthologous基因并且基于一个multigene方法在这些棕色的水藻之中澄清了种系发生的关系。这些棕色的水藻能被分开成二clades：CladeIshigeales-Dictyotales和CladeEctocarpales-Laminariales-Desmarestiale-Fucales。前者在种系发生的树的底，当后者被划分成二根树枝时，显示它的早分叉，与从订单Ectocarpales，Laminariales，和Desmarestiale分叉的顺序Fucales。在我们分类有争议的种类的分析，马尾藻类海草fusiforme和Saccharinasculpera被发现是仔细与类马尾藻类海草和Saccharina有关，分别地当Petalonia扁带显示出可能的关系到类Scytosiphon时。学习为棕色的水藻的种系发生的分类提供了分子的证据。

简介：

简介：WeestablishasystemtomeasurethefunctionalabsorptioncrosssectionofphotosystemII(PSII)(σPSII)andmaximumquantumyieldofphotochemistryinPSII(Fv/Fm).Thesystemutilizesasequenceofhighfrequencyexcitationflashesatmicrosecondintervalstoinduceamicrosecond-levelfluorescenceyieldcurve.ParametersσPSIIandFv/Fmarecalculatedbyfittingthecurveusingnonlinearregression.Experimentalresultsshowthattherelativestandarddeviation(RSD)ofthesystemislessthan3%,andthecorrelationcoefficientofFv/Fmvaluesmeasuredbythissystemandthosemeasuredbypulseamplitudemodulationmethodis0.950.

简介：ＣａｌｃａｒｅｏｕｓＡｌｇａｅｆｒｏｍＮｏｒｔｈｅａｓｔｅｒｎＢｒｉｌｏｎＲｅｅｆＣｏｍｐｌｅｘｏｆＭｉｄｄｌｅａｎｄＵｐｐｅｒＤｅｖｏｎｉａｎｉｎＥａｓｔｅｒｎＳａｕｅｒｌａｎｄ，Ｇｅｒｍａｎｙ￥ＨｏｎｇＴｉａｎｑｉｕ（ＤｅｐａｒｔｍｅｎｔｏｆＲｅ...

简介：Laminariajaponica,Undariapinnatifida,Ulvalactuca,GrateloupiaturuturuandPalmariapalmataaresuitablespeciesthatfittherequirementsofaseaweed-animalintegratedaquaculturesystemintermsoftheirviablebiomass,rapidgrowthandpromisingnutrientuptakerates.Inthisinvestigation,theresponsesoftheoptimalchlorophyllfluorescenceyieldofthefivealgalspeciesintumbleculturewereassessedatatemperaturerangeof10~30℃.TheresultsrevealedthatUlvalactucawasthemostresistantspeciestohightemperature,withstanding30℃for4hwithoutapparentdeclineintheoptimalchlorophyllfluorescenceyield.WhilethearcticalgaPalmariapalmatawasthemostvulnerableone,showingsignificantdeclineintheoptimalchlorophyllfluorescenceyieldat25℃for2h.Thecold-waterspeciesLaminariajaponica,however,demonstratedstrongabilitytocopewithhighertemperature(24~26℃)forshortertime(within24h)withoutsignificantdeclineintheoptimalchlorophyllfluorescenceyield.Grateloupiaturuturushowedageneraldecreaseintheoptimalchlorophyllfluorescenceyieldwiththerisingtemperaturefrom23to30℃,similartothetemperatekelpUndariapinnatifida.Changesofchlorophyllfluorescenceyieldsofthesealgaewerecharacterizeddifferentlyindicatingtheexistenceofspecies-uniquestrategytocopewithhighlight.Measurementsoftheoptimalchlorophyllfluorescenceyieldaftershortexposuretodirectsolarirradiancerevealedhowlongtheseexposurescouldbewithoutsignificantphotoinhibitionorwithpromisingrecoveryinphotosyntheticactivities.SeasonalpatternofalternationofalgalspeciesintankcultureintheNorthernHemisphereatthelatitudeof36°Nwasproposedaccordingtothesebasicmeasurements.

简介：这研究分析社区结构，水藻的数量变化和重要环境因素的效果并且在调查区域估计依附的绿水藻的全部的生物资源。从Porphyrayezoensis水产业椽子上的依附的绿水藻的调查的学习使用数据和关于到在Subei的2011年4月的从2010年10月的环境因素的数据变浅。椽子上的依附的绿水藻包括了Ulvaprolifera，Capsosiphongroenlandicus，U。linza，U。intestinalis，U。clathrata，和U。compressa。依附的绿水藻的生物资源变化展出了一根转换抛物线：生物资源最高(14898t)在4月，并且第二最高(2034t)在11月；它在2月(仅仅729t)是最低的并且从三月严厉地增加了到4月。种类差异在季节之中显著地不同。在9月和10月，什么时候P。yezoensis水产业椽子开始被建立，，依附的绿水藻从12月有高生物多样性到下一2月，，许多绿水藻种类在椽子上共存了生物资源是低的，并且从三月到4月作为严厉地增加的生物资源，种类差异落下到最小。在期间这次，C。groenlandicus与直到80%的最大的生物资源比例是显然主导的，当时U。prolifera比例指数地增加了到20%～40%。水温度在生物资源和依附的绿水藻的种类继任上有直接调整效果。社区动力学的评价和绿水藻的生物资源提供了需要在南部的黄海追踪大规模绿潮的起源的证据。

简介：有害海藻的花蕾最近在在全世界的聚光灯下面，因为他们海洋的环境，水产业，渔业以及公共健康上的否定影响。为原因的种类的快速、精确的鉴定和quantification的方法的发展为花蕾，技术基于分类探针在之中是赞成的themost的警告andmonitoring是必要的。在这研究，二有害水藻，即，最小的Prorocentrum和Kareniamikimotoi被考虑。两个的部分大子单元rDNA(D1-D2)种类是第一放大PCR的，克隆并且定序。获得的序列然后被介绍为基因执行排列分析特定的区域。为每种的三根各自的候选人探针被设计并且过去常由在杂交(鱼)测试的situ执行荧光屏蔽最佳的探查。结果证明探针Pmin0443和Kmik0602为P显示了最好的杂交。最小和K。mikimotoi分别地。两特定(分类)(Pmin0443和Kmik0602)并且控制探针(UniC0512和UniR0499)在我们的实验室与另外的microalgae被用于跨反应的测试。探针Pmin0443和Kmik0602是特定的并且能作为介绍进指向rRNA的技术的分类探针被服务，例如P的鱼，三明治杂交，和DNA-microarray试金。最小和K。mikimotoi以后。最后，有两探查的鱼分析在模仿的地样品上被执行。探针能专门有目标房间井的hybridize，和没有重要差别(p>0.05)在鱼和轻显微镜学(LM)决定的样品的房间密度被观察。都建议探针是特定的并且能为监视两有害水藻被介绍进鱼。

简介：Tworedalgae,RhodymeniaantarcticaandIridaeacordata(Rhodophyta),wereemployedtoinvestigatethepollutionsituationalongFildesPeninsulacoastline,KingGeorgeIsland.Tensitesfromeastandwestcoastlineswereinvestigated,andtheconcentrationsofCu,Pb,Zn,Cd,Cr,AsandHgweredetermined.Themetalpollutionindex(MPI)wasusedtoevaluatetheoverallpollutionlevelrepresentedbytheinvestigatedsitesandforinterregionalcomparisons.Thetwoalgaeexhibiteddifferentpreferencetospecialtracemetal.R.antarcticacouldaccumulatemoreCd(0.63mgkg^-1)andHg(0.026mgkg^-1)thanI.cordata(Cd0.34mgkg^-1,Hg0.019mgkg^-1).I.cordatacouldaccumulatemoreAs(15.53mgkg^-1)thanR.antarctica(10.11mgkg^-1).TherewasnosignificantdifferenceinaccumulatingCu,Pb,ZnandCrbetweenthetwoalgae.R.antarcticacouldbeusedtomonitorCdandHg.I.cordatawouldbemoreappropriateformonitoringAs.MPImonitoredbythetwoalgaewerefrom1.02to2.26(R.antarctica),and1.03to1.25(I.cordata),respectively.PollutionsituationofFildesPeninsulawasbecomingserious,especiallyoftheeastcoastline.TheobjectiveofthisresearchwastogatherthebaselineinformationfortracemetalsinvestigationinAntarctic.

简介：Anexperimentwasdesignedtoselecteconomicallyvaluablemacroalgaspecieswithhighnutrientuptakerates.Suchspeciesculturedonalargescalecouldbeapotentialsolutiontoeutrophication.Threemacroalgaespecies,Ulvapertusa(Chlorophyta),Gelidiumamansii(Rhodophyta)andSargassumenerve(Phaeophyta),werechosenfortheexperimentbecauseoftheireconomicvaluesandavailability.ControlandfournitrogenconcentrationswereachievedbyaddingNH4andNO3.Theresultsindicatethatthefreshweightsofallspeciesincreasefasterthanthatofcontrolafter5dculture.ThefreshweightofUlvapertusaincreasesfastestamongthe3species.However,differentspeciesshowdifferentresponsestonitrogensourceanditsavailability.TheyalsoshowtheadvantageofusingNH+4thanusingNO-3.U.Pertusagrowsbestandshowshighercapabilityofremovingnitrogenat200μmolL-1,butithaslowereconomicalvalue.G.Amansiihashighereconomicalvaluebutlowercapabilityofremovingnitrogenat200μmolL-1.ThecapabilityofnitrogenassimilationofS.EnerveishigherthanthatofG.Amansiiat200μmolL-1,buttheformer'sincreaseoffreshweightislowerthanthoseofothertwospecies.Thenpresentpreliminarystudydemonstratesthatitispossibletousemacroalgaeasbiofiltersandfurtherdevelopmentofthisapproachcouldprovidebiologicallyvaluableinformationonthesource,fate,andtransportofNinmarineecosystems.Cautionisneededshouldweextrapolatethesefindingstonaturalenvironments.