showed a trendp < 0.001
were present in all samples, across time they showed a trend of higher abundance within amended samples with a significant difference at Time 2 ( p < 0.001) (Time 0—BBFs: av. 0.6%, ABBFs: 8.8%; Time 1—BBFs: av. 0.5%, ABBFs: 1.7%; Time 2—BBFs: av. 0.7%, ABBFs: 1.5%).