Table 2. Bacteria excluded from the analysis as they were frequently observed in the negative control.
Acidovorax delafieldii	Afipia broomeae	Pandoraea apista	Ralstonia pickettii
Acinetobacter bereziniae	Brevundimonas diminuta	Phyllobacterium myrsinacearum	Serratia marcescens
Acinetobacter guillouiae	Cupriavidus metallidurans	Pseudomonas extremorientalis	Stenotrophomonas maltophilia
Aeromonas salmonicida	Delftia lacustris	Pseudomonas migulae	Stenotrophomonas pavanii
Afipia birgiae	Delftia tsuruhatensis	Pseudomonas rhodesiae	Vibrio metschnikovii