简介：OnthebasisofaninvestigationonthemangrovesinFujianfromNovember1998toJanuary1999,thespeciescomposition,area,distribution,artificialafforestationofmangrovesandthefactorsrestrictingthedevelopmentofmangrovesinFujianarediscussedinthepaper.SomesuggestionsonhowtodevelopmangrovesinFujianhavebeenputforward.

简介：SequencevariationofpartialcytochromebgenesbetweentwoCoiliaspecies,C.ectenesandC.mystus,wasinvestigated.Ofthe402nucleotides,twenty-seven(6.72%)arepolymorphicandallaresynonymoussubstitutions.Atthethirdpositionsofgeneticcondonofcytochromebgene,thetwospeciesshowanextremeanti-Gbias(＜4%)andapronouncedbiastowardsAandC(＞68%).Thereisnoaminoacidsequencedivergencebetweenthepartialcytochromebgenesofthetwospecies,indicatingaclosegeneticrelationshipbetweenthem.Thek-2pgeneticdistanceofpartialcytochromebsegmentofthetwospeciesis0.072,suggestingthatthespecieswereseparated3.6Maago,inthemiddlePliocene.Ourresultrevealsthatthecytochromebgeneisanappropriatemarkerforstudiesofpopulationgeneticstructuresandphylogeographicpatternsofthetwospecies.

简介：TheGCanalysisoffattyacidoffourspeciesofmarinemicroalgaeculturedatdifferenttemperatureshowsthatthetemperaturehasdistincteffectsonthecompositionandunsaturateddegreeoffattyacidofmicroalgae.ThepercentagesofTPUFAinTFAandthenumberofmeandouble-bondoffattyacidsotIsochrysisgalbana,DunaliellasalinaandPhaeodactylumtricornutumdecreasewiththeascendingtemperature,whilethoseofTMUFAandTSFAincreaseundertheconditionsofthepresentexperiment.ThecontentofTPUFAandthenumberofmeandouble-bondsofChlorellasp.firstdecreaseandthenincrease,withtheminimumoccurringat20℃.

简介：-InastudyofmeiofaunapolychaetefromtheHuanghaiSea,twonewspeciesbelongingtoExoganeandSphaerosylliswerefoundanddescribedinthispaper.Thetwonewspeciesdifferfromtheotherspeciesinthetwogeneramainlybythedorsalcirri,chaetationanddistributionofpapillae.

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简介：有增加极化的一个完全的词法坡度的一组radiolarlan石块在西南的Tianshan从上面的泥盆纪继任被报导，中国，明确地重要过渡raophotypes，Pylentonematransitorumsp。nov，Archocyrtium中等sp。nov。并且Quadrapesustransitivussp。nov，被发现。基于新过渡放散虫类的各类动物石块在形态学比到entactinids(spumellarians)更非常类似于到pylentonemids(cyrtoidnassellarians)的事实，他们被分配topylentonemids。两个的Pylentonemids份额字符Nassellaria(例如，hornedcephalis，有pylome的基础洞)并且Spumellaria(例如，trabecular骨针的系统)，并且他们因此具有进化意义。到nassellarians的从spumellarians的进化趋势被描绘由(1)内部骨针：从简单trabecular骨针复杂化部件(一；lr，ll；D；V；Lr，李；MB)；(2)放散虫类的各类动物的极化由于脊骨的rearrangment测试，从对轴的对称光线；(3)一个基础洞的渐渐的形成(孔，pylome，orpodome)；并且从pseudopylome的转变，有外部壳上的狭窄的边缘的priniativepylome，到有一面狭窄的、提高的Impermite墙的真pylomerimmed。

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简介：Appropriatepathogenicbacteriawereisolatedfromdiseased(ordead)flounder(ParalichthysolivaceusL)occurringinamariculturefarmsofQinhuangdao,whichalldiseasedfishesexpressedbacterialseptieaemia.Thephenotypicinformationofthe12purecultureswasstudiedextensively,includingmorphologicalcharacteristics,colonycharacteristicsindifferentmedia,physiologicalandbiochemicalcharacteristics,andthemolefractionG+CratiooftheDNAforrepresentativestrain.TheresultsshowthattheisolatesbelongtoanewspeciesofVibrio,andaredesignatedasVibrioqinhuangdaorasp.nov.bytheareafromwhichthediseasedfloundersarecollected(Qinhuangdao)basedonitsbiologicalpropertiesfollowingRulesofInternationalCodeofNomenclatureofBacteria.Atthesametime,studiesontheserumhomologyofisolates,andpathogenicityofisolateswereconductedbyexperimentalinfection.Theresultsshowthatalltheisolatesareofserologicsimilarity,andtheisolateshavestrongpathogenicitytoflounder.ThestudiescanextensivelyreflectthemainbiologicalpropertiesofthisnewspeciesofVibrio.

简介：Ｄｉｓｔｒｉｂｕｔｉｏｎ　ｏｆ　ｄｏｍｉｎａｎｔ　ｓｐｅｃｉｅｓ　ａｎｄ　ａｂｕｎｄａｎｃｅ　ｏｆ　ｎａｎｎｏｆｏｓｓｉｌｓ　ｉｎ　ｓｕｒｆａｃｅ　ｓｅｄｉｍｅｎｔｓ　ｏｆ　ｔｈｅ　ｃｅｎｔｒａｌ　ａｎｄ　ｎｏｒｔｈｅｒｎ　ｐａｒｔｓｏｆ　ｔｈｅ　Ｓ...

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简介：ZooplanktonsurveyswerecarriedoutonNovember2-3andDecember8-10,2001at12stationsintheNanWanBayofTaiwan,China.Altogether92quantitativezooplanktonsampleswerecollectedfromsubsurfacewaterandbottomwaterlayerswithtwoconicalplanktonnets(180cminlength,45cminopeningdiameter,333μmand200μminmeshsize).Atotalof31speciesofSiphonophoreswereidentified,amongthem7speciesarenewrecordsinthewatersaroundTaiwanIsland,ofwhichRocaceacymbiformisisanewrecordinChina.DominatedbyChelophyesappendiculata,Bassiabassensis,Diphyesbojani,Diphyesdispar,AbylopsiseschscholtziandChelophyescontorta,thesespeciesaccountedforover76%and63%ofthetotalabundanceinNovemberandDecember.ThespeciesnumberandSiphonophoresabundanceinDecember(25species,1.99inds/m3)weremorethanthoseinNovember(19species,0.438inds/m3),andtheyweremoreinthesurfacewaterlayerthaninthebottomlayeratmostsamplingstations.Inearlywinter,theoffshorehighsalinitywatermasswasamainfactorinfluencingthedistribution.ThesamplingefficiencyfortwoplanktonnetsisdiscussedandtheseasonalvariationofspeciesnumberandabundanceintheNanWanBayiscomparedwiththatintheneighboringwaters.

简介：InastudyofmeiofaunapolychaetefromtheHuanghaiSea,apreviouslyundescribedspeciesbelongingtoHesionurahasbeenfoundanddescribed.ThenewspeciesdiffersfromtheotherspeciesofthegenusHesinuramainlybythechaetation.