TABLE 1

Alpha-diversity metrics across UWM RAS sites

SiteaH' ± SDbJ ± SDcndSample
categorye
Biofilter effluent4.22 ± 0.320.68 ± 0.054Plankton
Biofilter sand4.66 ± 0.200.75 ± 0.046Biofilm
Biofilter water4.26 ± 0.740.68 ± 0.124Plankton
Clarifier4.27 ± 0.210.68 ± 0.036Sludge
Clarifier effluent4.38 ± 0.350.70 ± 0.064Plankton
Degasser4.20 ± 0.310.67 ± 0.055Plankton
pH buffer tank3.54 ± 1.410.57 ± 0.223Plankton
Rearing tank4.13 ± 0.130.66 ± 0.024Plankton
  • a All alpha-diversity metrics were calculated across the University of Wisconsin—Milwaukee Recirculating Aquaculture System sites using the V6 16S rRNA gene sequence data set.

  • b Data represent Shannon-Weaver diversity index (H’) values. Standard deviation (SD) values are indicated after the mean values.

  • c Data represent Pielou’s evenness metric (J) values. Standard deviation (SD) values are indicated after the mean values.

  • d The number of samples at each site is indicated.

  • e Sample categories used in Kruskall-Wallis rank sum hypothesis testing are indicated.