Table 2 Presence or absence of Biomphalaria pfeifferi (infected or not), thermophilic coliforms, and E. coli at the contact points studied as a function of abiotic parameters
Factors | Total B. pfeifferi | Total infected B. pfeifferi | ||||
|---|---|---|---|---|---|---|
Contact point (CP, n = 45) | Contact point (CP, n = 42) | |||||
Absence of B. pfeifferi (CP, n = 30) | Presence of B. pfeifferi (CP, n = 15) | P | Absence of infected B. pfeifferi (CP, n = 33) | Presence of infected B. pfeifferi (CP, n = 9) | P | |
T °C | 25.7 (24.5, 27.6) | 26 (24.40, 26.65) | 0.89a | 25.9 (24.5, 27.52) | 26.5 (26, 28.5) | 0.13b |
pH | 4 (3.48, 4.50) | 4.06 (3.05, 5.65) | 0.83a | 4.03 (3.50, 4.50) | 3.10 (2.70, 3.60) | 0.00*a |
TDS | 24 (19.25, 26) | 22 (19, 24) | 0.42b | 24 (19.75, 26) | 22 (21, 24) | 0.72b |
EC | 48 (39.25, 51.87) | 43.7 (37.9, 48.5) | 0.41b | 48 (39.75, 51.62) | 45 (43, 49) | 0.75b |
LST_Min | 21.21 (19.15, 21.86) | 21.42 (21.21, 21.86) | 0.30b | 21.28 (19.15, 21.86) | 21.42 (21.15, 21.86) | 0.37b |
LST_Max | 28.62 (28.02, 30.73) | 28.02 (27.95, 28.62) | 0.08b | 28.58 (28.02, 30.73) | 28.02 (27.96, 28.68) | 0.15b |
LST | 24.50 (24.42, 24.55) | 24.34 (24.25, 24.52) | 0.02*b | 24.34 (24.34, 24.54) | 24.4 (24.3, 24.6) | 0.20b |
RAH | 88.47 (74.38, 90.19) | 91 (87.47, 91.12) | 0.02*b | 90 (74.38, 90.19) | 91 (86.94, 91.25) | 0.13b |
Pp | 8.64 (0.01, 12.96) | 7.69 (6.06, 12.85) | 0.8b | 12.85 (0.01, 12.96) | 7.69 (4.43, 12.87) | 0.97b |
Factors | Total thermophilic coliforms (TC) | Total E. coli | ||||
|---|---|---|---|---|---|---|
Contact point (CP, n = 26) | Contact point (CP, n = 26) | |||||
Absence of TC (CP, n = 2) | Presence of TC (CP, n = 24) | P | Absence of E. coli (CP, n = 4) | Presence of E. coli (CP, n = 22) | P | |
T °C | 27.75 (27.02, 28.47) | 26.55 (25.77, 29) | 0.81b | 28.7 (27.95, 28.97) | 26.5 (25.72, 29.1) | 0.39b |
pH | 2.07 (2.02, 2.12) | 3.88 (3.38, 4.07) | 0.04*b | 2.07 (1.96, 2.32) | 3.95 (3.49, 4.08) | 0.00*b |
TDS | 22 (21, 23) | 21.5 (18, 24) | 0.66b | 21.5 (19, 23.25) | 21.25 (18.25, 24) | 0.97b |
EC | 44.5 (42.8, 46.25) | 43 (37.8, 48) | 0.63b | 44 (40.25, 47.25) | 43 (37.25, 48) | 0.80b |
LST_Min | 19.15 (19.15, 19.15) | 21.35 (21.15, 21.86) | 0.07b | 19.15 (18.88, 19.68) | 21.42 (21.15, 21.86) | 0.02*b |
LST_Max | 30.9 (30.9, 30.9) | 28.3 (28, 28.7) | 0.04*b | 30.8 (30.19, 30.87) | 28.02 (27.97, 28.67) | 0.04*b |
LST | 24.6 (24.6, 24.6) | 24.5 (24.3, 24.6) | 0.22b | 24.53 (24.49, 24.55) | 24.46 (24.34, 24.55) | 0.35b |
RAH | 74.4 (74.4, 74.4) | 90.1 (86.9, 91.1) | 0.07b | 74.38 (73.88, 78.33) | 90.09 (86.94, 91.18) | 0.04*b |
Pp | 0.01 (0.01, 0.01) | 12.85 (4.43, 12.96) | 0.07b | 0.01 (0.007, 3.24) | 12.85 (4.43, 12.96) | 0.08b |