COPPER ACCUMULATION AND TRANSPORT IN A MARINE FOOD CHAIN COMPOSED OF PLATYMONAS SUBCORDIFORMIS, BRACHIONUS PLICATILIS AND PENAEUS MONODON

mooimON~ofheaVyInetalpollutantsonmarineorganismswereextenSivelystudedguiAgenetal.,l99l,LiuFayietal.,l988,PatinS.A.,l982).bouseofthemarineansySteIncomPlexityandthevarietyofthefoodchain,pollutantSaretIanspondindiliferentwayS-Therefore,studyofthetIansPortofPonutantsinthefoodchainhasdrawnmuchattention.TherearerePortSontheaCCUInulatinnandusnsportofsorneradi0nuclidesguiFulongetal.,l984)suchasCs,Co,andZnandsometIaceelernentSsuchasV,SeandNinthernarinefoodchain(Mthemand,Ctal.,l98O;Unsal,…     

MODEL OF UPPER OCEANIC CIRCULATIONS IN THE SOUTH CHINA SEA DURING NORTHEAST MONSOON

MODUrnONTheS0uthChinaSea(SCS)isabophalrnarginalbasinwhereEastAsiamonsoonsprevail.0bviousadjustInentSoftheupperocanoccurduetOthealtematingsurnxneandwintermonsoons.ThemostboohantaspchoflargeanlecurmtSintheSesaretheupperoonnicresponsetothemonsoons(Dale,l956).MostpreviousmrehesfocusedondiagnostiesandmodelingofsuffocecurmtS.Wwti(l96l)plotalsurfacentsbasedonshipdriflsintheNAGAReportNo.2anddescritaltheperiodicallysdri-annualreversingofwindsandrtinthisarea.Xuetal.(l982)calculatalthedy-naAn…     

Study on shaded transducer for acoustic scattering system

mODUCnONConntinduedmovementofseafloorSandsguailyaffectstheconditionsoftheseafloor,soitisiInP0rtantostUdytheconcentraion,movementandthesuspensionandre-suspensionofParticles.InthishighheqUencyacousticscatteringsystem,a3MHzffe-qUencytransduersendst0theseafloorsounwaves,whosescatteringintensityasthewavesscatterupontouchingsandandsiltcanbemeased;andthemovingconditionsoftheSandcanbehaherdetendned(Guan,l982;Sheng,l988;libicld,l989).SuchacousticscatteringsystemiseffectiveforInarinegeOlogicalst…     

The functional relation between ion concentration in water vapor chemistry and the bond parameter in quantum chemistry

ImODUcrION'Watervaporchenhatry"asanewsdencewasestablisedbyGu'slaboratorybasedontheirdiscoveryoftheruleof'witCr-watervaporconstanttransferoftracemetalionsinthenaturalwaterCyde';andwasprovedbyamodelexperimntofsea-airtransfer(Gu,l988,l99l,Gueta1.,l982,l986).Thertilehasnotorreationwiththethermody-nawhrsofthetracephySicochdricalsyStem(Gu,l99l,Guetal.,l984).ThispaperpresentSthefuflctionrelating'witCfvaporchedtry"ionconamtrationtothe'huantumchedtry"bondparametCr.FUimONThedatausedinthecurvea…     

HYPOGLOSSUM FUJIANENSIS SP. NOV. (DELESSERIACEAE,RHODOPHYTA) FROM FUJIAN COAST, CHINA

lNwnDUCnoNTheDelesseriaceangenusHopdeumKtitzingincludesabout25speciesoccurringintropicalandtemPerateseasthroughouttheworld-ThereareanuInberofmorphologicalandtaxonodricstudiesonHopghsuminconteInPOngliteratUre(WOInrsleyandShep-ley,l982;Mikdri,l985;WynnandKraf,l985;WynneandBallantin,1986;Yoshi-daandMibo,l986;Miknd,l987;Wynneetal-,'l989).Uptodate,onlyonespecies,H-attenuatam,hasbeendescrihedfrOInChineseseas(Tsengetal.,1983).DuringataXodricstUdyoftheChineseIhadesum,specimenscollectedb…     

EFFECTS OF Mg~(2+), NaCl, CITRIC ACID, AND OTHER FACTORS ON SYNTHESIS AND ACCUMULATION OF β-CAROTENE IN DUNALIELLA SALINA

Therearemorethan4Ookindsofcarotenoids,aboutl(X)ofwhichcanbeObtainedfromoceanicmicrobesandalgae,sooceanicalgaeareconsideredthemostimPOrtanre-sourceofnaturalcarotenoids(Becker,l982).DunaliellaSalinahasdrawnnmehattentionfromanuInberofcountriesrecently,asmoreandmorestudiesshowedthatthisunicellularalgacanaccumulatelargeamountsof5-caroteneundercertainenvironmentalconditions(Li,1988).SuInInallzingthebiosyntheticmechanismof3-carotene,weknowthatacetylCoAandCO2arethehasicInaerialsfOrSYthesizing3-…     

A LAYERED NUMERICAL MODEL FOR SIMULATING THE GENERATION AND PROPAGAYION OF INTERNAL TIDES OVER CONTINENTAL SLOPE Ⅰ.MODEL DESIGN

mODUCnONSinceRattw(lwn)develoPedthefirstthcoreticalm0dl0ninternaltides,Inandifferentmodlshavebeenpresented.Theearlym0dlssuchastheonescreatedbyCoxandSandstorm(l962),Baines(l973,l982),etal.wereInainlylinear.Itwasnottmtilthe1980'sthatmodelsforstUdvingthenonlinearclertersofintemaltidesbegant0bedeveloPed.ThempicaloneswerethoseProposedorusedbyPinpeeetal.(1984),Maze(l987),WllmottandEdnds(l987),~(l994),andGerkema(l996).klthoughthesemodlscontribuegnailytoourundrstandingofthegenerationandproPag…     

Determination of apparent sampling thickness of sea surface microlayer

IwrRODUtvIONTheseasurfacendcrolayer(SML)isathinair-seainterfacelayerwithphySical,chdricalandbiologicalproperties.OrganicmateriaIs,haceAnIs,nutrientS,particulatCrnat-terandplanktonaregenefallyenrichedintheSML(Hardy,JT.etal.,l98O,Wunams,P.M.etal.,1986).ThesamPlersforcolledingtheSMLwerernainlyglassplatespearvey,G.W.etal.,l972,l985;ZhangZhengbinetal.,l996),rotatingdrums(Harvey,G.W.,1966,Daumas,R.A.l976),screensgurmt,W.D.,l965,Piotrowicz,S.R.etal.,l972,Carison,D.J.,l982),funneIs…     

DISSOLVED ORGANIC CARBON IN THE EAST CHINA SEA IN AUTUMN

ImODUcrIONThepoolofdissolvedorganicrnatter,eva1uatalasdissolvedorganiccarbonpoC),hasbostudndforrnanyycars(Med,l964,SkopintSevCtal.,l966).Continentalmar-ginshavedrihypotheSedtobeasirnPortanttothemarinecarbonbiogeochdricalCy-desasthedeepsea(Walsh,l99l),butinmostdiscussions,onlyexportofparticulateorganieswasconsidetal.HighconcentIationofDOCincoastalwatershasaspedlroleinexportingcarbonfromcontinentalmarginstotheopenocean.UndelstandingtheroleoftheoceanmarginsintheglobalcarbonCycAsdependsla…     

STABLE ISOTOPES DISTRIBUTION IN CORE Ck6 AND VARIATIONS OF PALEOCLIMATE OVER QARHAN LAKE REGION IN QAIDAN BASIN, CHINA

ImODareNThelast3Oycars'~tilicproductinnofsalts,andnawh,andexpIorationofsaltlakes,haveyboedmuCinfonnationonQarhanInke.Thereisliteraturedetailingthelakebpaleo-dhate,paboenvbonment,paboerelogy,evolution,etC-since5OkaB.P.(ZhengPenShinCtal.,l993,ChenKereoetal.,l986;HuangQiCtal.,l98l),butfewonthebefore5OkaB-P-eventS.CoreCk6thattheFirsttheloghalExplorationTeamoftheQinghaibologicalBu-rmudrilledat9lOmdePthinQarhanLakeyallasetofcontinuouslylacustrinetali-rnentdataveryvaluableforstudyofpabo…     

BIOCONCENTRATION OF TETRACHLOROBENZENE IN MARINE ALGAE

INTRODUCTIONChlrinatal~arewidelyedinindusnyandhouseholds,andsoisofsboi-ficantenviID~lcom,hauseitisoftenndaswaste.contributingtothepoilutantsinalltyPesofwater(Afghanetal.,l979).AlthoughsornedataontoxidtyandbioconnitionofchiorinatalboinaquaticorganismSwerepublishedopbasetal.,l987,LohnerCtal.,l987,Maunot,l987,Kuhnctal.,l99O),thebioCOntritionpotritinlparade,indudingk,,k,andBCF,werenotdetenninWelldriusethernehodsford~ngtheparaIneterswereleSsthanaccurate(Wangetal.,l996).Thepresentstudyab…     

STRESS CORROSION CRACKING OF AISI 321 STAINLESS STEEL IN ACIDIC SEAWATER

ImooUonONSCCisoneofthemosttwortantcausoffailureofstaiuleSsstalequipmentandfacilitieS.Studiesonunh0refacilitiesshowedthatanaddicchloridesolutionfilmcouldbefo~onthescheeofstalandthatstaiuleSSstalisinaCtivedissolutionstateinaedicchloridesolutionopinetal.,l99O;Gnanamoorthyetal.,l99O).ltisgenerallythoughtxthatSCCcannotoimrwhenthematerialisinaCtiveanodicdissolutionstate,soitsomcewithresultingcasualties(0ldfieldetal.,l99O)arousedattentiont0it.SomeSCCmeCanisrnsproposedpeuang,l988,Newmanctal.,…     

CHARACTERISTICS OF EOLIAN DUST OVER THE EASTERN CHINA SEAS

ImODUcrIONWindisantheortantagentfortransportationofdryandfinemateriaIsfromcontin-entStooceans.MaterialloadfromriversandcoastalerosiondepositSrnaitilyinestuaries,coastalregionsandontheinnercontinentalshelves.MinoramountSentCfopenoceans(Robeft,l982).DuetoconstruCtionofreservoAsonrivers,therivers'matCrialloadstotheseahavedroppedgreat1y.Forinstance,theloadoftheHuangheRiverintotheBohaiSeawas2O.4xlO9tinl958,butoIilyo.9xlO9tinl987.Meansedirnentdischargeredued36%duringtheperiodfroml98ltol989…     

NUTRIENTS IN SEAWATER AND INTERSTITIAL WATER OF THE SEDIMENTS IN THE HUANGHE RIVER ESTUARINE AREA (NOVEMBER)

The investigation shows that the concentrations of nutrients are high in estuarine and coastal waters and low in offshore waters. The concentration of nitrate in estuaries is controlled through a physical mixing process and is also affected by hiotic activity. The annual transport of total inorganic nitrogen and dissolved phosphate-phosphorus from the Huanghe River water to the sea is about 8.45×104 and 1.45×103 tons respectively. The distributions of inorganic nitrogen and silicate in interstitial water of surface sediments are similar to those in surface and bottom sea water. Their contents in interstitial water are227 552μmol/l (average 375) for ammonia, 0.31 -9.0μmol/l (average 1.6) for nitrite, 0 41μmol/1 (average 6.0) for nitrate, and 41 139μmol/l (average 77) for silicate. The average concentrations of phosphate in the surveyed area are 0.64μmol/l for seawater and 1.2μmol/l for interstitial water. A cycle of phosphate in the estuary is also suggested in this paper.     

VELOCITIES OF PRECURSOR SOLITON GENERATION IN SINGLE LAYER FLOW

ImODUcrIONThegeneratingveodtyofprecmeorsolitonswasstudiedbyGrimshawetal.(l986),Wu(l987)andbeetal.(1989).TheydidnotgivetherelationbeweenthegeneratingvelocitiesandtopographyintenSityandthereexistSanunknownparameterh,inthetheoryofboetal.(l989),sotheprevioustheorycannotprediCtthegeneratingvelodtAs.ThisfurtherstudyonthetheoryofXuetal.(l996)ahetoconstIUCtatheoryonthegeneratingvefodtiesofsinglelayerflowfondbytopography.InSeCtion2,thernassandenergyoftheprecursorsolitongenerationaredetendnedint…     

SESTON AND DISSOLVED ORGANIC CARBON DYNAMICS DURING MICROCYSTIS BLOOM WITH SPECIAL REFERENCE TO THE EFFECTS OF THREE CHINESE DOMESTIC FISHES IN EXPERIMENTAL ENCLOSURES

ImODUonONGrowingconcemovertheprobboofobnoxiouswaterbloornspromPtedagreatdealofresearchintothebiologyofblue-grmalgae(Reynolds&Walsby,l975,Reynothe,l984).PreviousstudiesonMimptiSwereaimedatitSphySinlogicalcharaCteristirsindudinggroWthandbuoyancyraegnolds,l975),0Vendteringandphotosynthesisfea-turesffokamuraetal.,l984,Takamura,l985),nutrientdemandsoprlofTetal.,l952,0kado&Sudo,l979).TherearerepoffethatMicropstiswasawidelydistributalspedesthatcouldeasilybloomWhenambientenvironrnentSweresuit…     

POTENTIOMETRIC TITRATION OF CALCIUM IN SEAWATER

Atpasent,thestandardmethodfordetendningcalciuminseawateriscomPlexometrictitrationusingEGTA[ethyleneglycol-bis(2-adrinoethylether)-N,N,N',N'-tetraaceticacid]andGHAtelyoxal-bis(2-hydroxyanil)].ThisInethodwasfirStdeveopedbyTSunogaietal.(l968),sumrnarindbyKremling,andeditalinMethodsofSeawaterAnalySisbyGrasshoff(l983).AlthoughtheendpointreadingsinthismethodarenotquitCsharp,andrnaybeaffCCtedbyoveanstweather,withtheuseofcalctumISEasindicatingeledrode,SCEasreferenceeledrodeanddigitalvoltme…     

CALCULATIONS OF WAVE BREAKING PROBABILITY AND DISTRIBUTION OF BREAKING WAVE HEIGHTS IN DEEP WATER

lareODUcrI0NThephenomenonofbreakingwavesintheoasnoocurswheneveramomentahiyhighcrestmecheSanunstablecondition.It0ccursintendtimhy,andtheoccurrencefre-qUencydePendsonthescastate.ManystudAshaddricaniedoutontheoccurmcefre-qUencyofbrmkingwavesindeepweter.0chiandTsai(l983),LongueHiggins(l975)andVanD0mandPamn(l975)nadstheptalictonofbrmkingwavesoccurrenceindeePwater,usingabaskingcriterionforindividualwavesbasedonthewavesmpness.ThecriterioncanbeexpmeedintennSofthewaVehdghtHandperiodTasH>PgT'(…     

DETERMINATION OF DISSOLVED ORGANIC CARBON IN SEAWATER USING UV/PERSULPHATE METHOD AND HTCO METHOD

MODUonONThermsurmtofdissolvedorganiccarbon.(DoC)inseawaterhasprovedtobeaddricultandcontroversialproedurepeenneretal.,l992,l993,OgawaandOgam,l992,Tanoue,l992).InterestinthemeasurernentofDOCinseaytteyintenSfomtlyinoonnographicdedes(Sharp,l993)largeyduetothesuggestionthathighteIneratU-rcatalyticoxidationanalysisyieklshighervaluesthanhaditionalweoxidationmethods(SugdriraandSuzuki,l988).Thereportedhigherconcenttationsappeatalsignilicantforg1obaloasnfluxmodelingcyoggweiler,l992)andforunderst…     

STUDY ON THE CORROSION PEAK OF CARBON STEEL IN MARINE SPLASH ZONE

lNTRODUCTI0NSincetheoonceptofrnarinesplashzone(MSZ)wasfirstproposedbyHumble,rnanyresearchesprovedthatthecorrosionofsteelinthesplashzoneisthemostseriousinthemarineenvironninetandthatthisMSZcorrosionhasapeak(Zhu,l995).Howevertheenvironmentalfactorscatisingthecorrosionpeakwasnotkn0wnthen(Niat0,l975,Atsushi,l994)andtherangeoftheMSZwasnotyetdeariydefinedopzkaki,l985).ThispaperexplainsthemaincauseofthecormsionpeakanddefinestheexaCtrangeoftheMSZinsomeofChina'sharbours.MATERIALSANDMET…