Bathing BeachesGeologic SedimentsSeawaterFresh WaterWater MicrobiologyRNA, Ribosomal, 16SWater PollutionDNA, RibosomalWater Pollutants, ChemicalPhylogenyEstuariesRiversFloridaWater MovementsOceans and SeasGreat Lakes RegionEcosystemSoil MicrobiologyBacteriaWater QualitySilicon DioxideSequence Analysis, DNADNA, BacterialWater PollutantsGenes, rRNABiodegradation, EnvironmentalBiodiversityMethaneEnterococcusPetroleum PollutionGulf of MexicoDeltaproteobacteriaSulfur-Reducing BacteriaRecreationArchaeaMolecular Sequence DataDNA, ArchaealLakesWater Pollution, ChemicalPacific OceanRhizophoraceaeBase CompositionSewageBiotaAnaerobiosisHydrocarbonsGroundwaterPetroleumSeasonsWetlandsRNA, BacterialSuntanSoil PollutantsUraniumEnvironmental MonitoringGammaproteobacteriaFuel OilsBacterial Typing TechniquesInorganic ChemicalsGeologyGeographyAtlantic OceanSulfatesArctic RegionsTurtlesEutrophicationOxocinsAquatic OrganismsBacteria, AnaerobicLaurusWater Pollutants, RadioactiveSwimmingBivalviaCluster AnalysisPopulation DensityAroclorsFatty Acids