SMITH} 'MarinePrimaryProduc/ivityGroup.Departmento (!1iologimlSciencesandMarineScienceInstilllte.Universityo(
WithinthePalmerLongTermEcologimlResearchProgram(PAL-LTER), asuiteof environmelllaldatasets\\11'1'1'col/ectedata nearshorestationthrougholilthe1991/92 australsummer.Seasonalchangesarepresentedinthecontexto(phytoplankloncom-munityecology.Suhseasona/jfuctationsin.I'ea-icecoverage.Fe...
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Format: | Text |
Language: | English |
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Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.634.3526 http://pal.lternet.edu/docs/bibliography/Public/047lterc.pdf |
Summary: | WithinthePalmerLongTermEcologimlResearchProgram(PAL-LTER), asuiteof environmelllaldatasets\\11'1'1'col/ectedata nearshorestationthrougholilthe1991/92 australsummer.Seasonalchangesarepresentedinthecontexto(phytoplankloncom-munityecology.Suhseasona/jfuctationsin.I'ea-icecoverage.Fesh\\laterinputs,as\\II'I/ as\\Iind rivenandadvectiveprocessesdisruptingstratifiedsurface\\Iaters,appearedto be themajordrivingforcesaffectingthe timing,durationanddemiseof local phytoplanktonblooms.Duringa largediatom-dominatedbloom(-30 mgchia m-J), macronutrients\\Ieredepletedtodetectionlimits(NO;- <0.05mmolm-J,PO/- <0.03 mmolmoJ)andsignificantshifisin nutrientratios\\Iereobserved.Phytoplankton populations\\Ierelightlimitedbelo\\l-5 m duringthebloom,resultingfrom self-shading.Thedepthof lightlimitationdeepenedafier thebloom\\Iasphysicallydis-ruptedandremovedfromtheregionbystrongadvectiveprocesses. Keywords:phytoplankton,Antarctica,bloom,timeseries,nutrientlimitation, mixedlayerdepths,photoadaptation,lightlimitation |
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