TABLE 1

Relative contributions of different sources to the microbial communities in estuarine and marine watera

Water sample typeMarine beach (%)Freshwater (%)Estuarine sediment (%)Sediment (%)Soil (%)
Environmental microbial community source (including marine beach source)
    Estuary beach97<0.010.4<0.01<0.01
    Estuary942.90.20.02<0.01
    Freshwater<0.01NAb<0.01742.6
Environmental microbial community source (excluding marine beach source)
    Estuary beachNA6612<0.01<0.01
    EstuaryNA747.60.02<0.01
    Marine beachNA3519<0.01<0.01
    FreshwaterNANA0742.6
  • a SourceTracker was run with two different configurations, with marine beach water either included or excluded as a potential source.

  • b NA, not applicable.