Fig. 2
The gut bacterial community stability parameters of WES and BFS shrimp and its relationships with survival rate. a The within-group similarities of gut bacterial community in WES and BFS shrimp. b The absolute value of negative:positive cohesion ratio (N/P cohesion) of bacterial networks. c Bacterial community similarity between non-Vibrio infection and Vibrio infection groups in WES and BFS shrimp. The boxes represent the median and interquartile range, whiskers range from minimum to maximum values, and error bars show standard deviation. Each sample had five replicates (n = 5). The asterisk indicates a significant difference at *p < 0.05, ***p < 0.001, and ****p < 0.0001 based on Student’s t test. d The linear relationships of bacterial community stability parameters and survival rates after culture experiment and Vibrio infection. Adjusted R2 values and the significance levels are displayed for each of the linear regressions. WES, Water exchange system; BFS, Biofloc system; − Vp, non-Vibrio infection; + Vp, Vibrio infection; SR, Survival rate