TABLE 4.
Discrimination potential of microbial indicators by pairwise comparison of representative sampling sites and habitat typesa
| Sampling sites used for pairwise comparisons | Result for:
|
||||
|---|---|---|---|---|---|
| E. coli | FC | TCC | TCM | SASF | |
| S2, S3 | + | − | + | − | − |
| S2, S4 | + | − | − | − | − |
| S2, S5 | − | − | − | − | − |
| S3, S4 | − | − | − | − | − |
| S5, S8 | + | − | + | + | − |
| S6, S7 | + | − | + | − | + |
| S8, S(6,7) | + | + | + | + | − |
| S(1,2,5), S(3,4) | + | − | − | − | − |
| S(1,2,5), S(6,7) | + | + | + | + | + |
| S(1,2,5), S8 | + | + | + | + | − |
a
Tests for differences by pairwise comparison were performed by Wilcoxon test. + or −, significant or nonsignificant difference, respectively (P < 0.05). Number of samples was 48 per station. S(1,2,5), S(3,4), and S(6,7) indicate pooled values from channel stations S1, S2, and S5, effluent stations S3 and S4, and stations with low pollution levels S6 and S7, respectively.