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Controlled EcosystemEcosystem PollutionNutrient LimitedSecchi DiskMarine Unicellular AlgaeSubsurface Chlorophyll MaximumUnderwater IrradianceArtificial UpwellingJuvenile Chum SalmonNitrate DistributionWater-soluble FractionsPhytoplankton PopulationElectronic LeadSand LiquefactionDissolved SiliconGlucose AnalysisSedimentary EnvironmentAmmonium OxidationAtmospheric InputDistribution Characteristics