Fig. 3From: Quantifying the contribution of microbial immigration in engineered water systemsa Mass balance for a bioreactor with biomass input, output, and local growth. Notations in the model are described in the paragraph above. b An example of the net growth rate calculation result. X-axis denotes the net growth rate. The abundances of a community member in the upstream and downstream community are represented by the Y-axis and the size of the bubbles, respectivelyBack to article page