Table 2. Individual Spearman’s rank correlations between the FIO and bla_CTX-M gene concentrations and environmental parameters.

	site 1 (n = 25)				site 2 (n = 35)
	blaCTX-M	E. coli	enterococci	coliphages	blaCTX-M	E. coli	enterococci	coliphages
blaCTX-M		0.76	0.71	0.78		0.88	0.81	0.73
E. coli	0.76		0.91	0.75	0.88		0.93	0.79
enterococci	0.71	0.91		0.71	0.81	0.93		0.78
coliphages	0.78	0.75	0.71		0.73	0.79	0.78
discharge	0.55	0.29	0.29	0.50	0.69	0.65	0.66	0.72
water temperature	-0.43	-0.47	-0.56	-0.43	-0.58	-0.60	-0.53	-0.54
conductivity	-0.17	0.11	0.11	-0.12	-0.42	-0.30	-0.30	-0.49
pH	-0.22	-0.19	-0.31	-0.09	-0.40	-0.41	-0.41	-0.43
turbidity	0.58	0.38	0.32	0.65	0.30	0.29	0.33	0.44
chlorophyll-a	0.05	-0.24	-0.25	-0.09	-0.19	-0.34	-0.26	-0.32
dissolved oxygen	0.48	0.36	0.44	0.43	0.53	0.52	0.47	0.46
rainfall	0.13	0.33	0.28	0.03	-0.01	0.14	0.12	0.03
rainfall(4d-sum)	0.69	0.56	0.58	0.54	0.56	0.65	0.64	0.52
NO2-N	0.54	0.36	0.35	0.55	0.42	0.45	0.42	0.53
NO3-N	0.35	0.50	0.64	0.34	0.33	0.41	0.42	0.35
NH4-N	0.69	0.73	0.73	0.62	0.61	0.74	0.69	0.64
PO4-P	0.07	0.08	0.02	-0.05	0.01	0.07	0.03	-0.03
TNb	0.17	0.42	0.55	0.26	0.44	0.50	0.47	0.43
global solar irradiance	-0.43	-0.65	-0.77	-0.51	-0.44	-0.55	-0.51	-0.48
global solar irradiance(3d-sum)	-0.51	-0.68	-0.78	-0.57	-0.58	-0.72	-0.66	-0.62

Color gradient indicates strength of correlation with positive correlations in blue, negative correlations in purple, significant (p<0.05) correlations in bold.