Table 3 Physicochemical parameters and Anopheles mosquitoes proportion
Month | Physicochemical parameters | Anopheles mosquitoes larva | Total (n = 7644) | |||||
|---|---|---|---|---|---|---|---|---|
E.C. (μS/cm) | pH | TDS (ppm) | Temp. (°C) | DO (mg/L) | An. gambiae s. l. (%) (n = 7329) | An. funestus (%) (n = 315) | ||
October | 274.60 ± 40.88b | 6.88 ± 0.05a | 19.80 ± 1.39de | 27.22 ± 0.31ef | 7.92 ± 0.05ab | 823 (11.23) | 46 (14.60) | 869 (11.13) |
November | 443.80 ± 42.79d | 6.68 ± 0.07a | 23.40 ± 2.06e | 26.56 ± 0.25bcd | 8.01 ± 0.06bcd | 954 (13.02) | 59 (18.73) | 1013 (13.25) |
December | 378.40 ± 32.96 cd | 6.74 ± 0.11a | 12.40 ± 1.02a | 28.14 ± 0.39f | 7.76 ± 0.07a | 936 (12.77) | 46 (14.60) | 982 (12.85) |
January | 290.60 ± 20.18b | 6.55 ± 0.04a | 16.60 ± 1.03 cd | 26.20 ± 1.05bcd | 8.03 ± 0.03bcd | 715 (9.76) | 73 (23.18) | 788 (10.31) |
February | 366.40 ± 47.19c | 7.07 ± 0.19a | 15.20 ± 0.66abc | 27.52 ± 0.36ef | 7.84 ± 0.05ab | 595 (8.12) | 66 (20.95) | 661 (8.65) |
March | 278.00 ± 12.89b | 6.49 ± 0.25a | 13.40 ± 1.03abc | 27.00 ± 0.41def | 7.95 ± 0.08ab | 636 (8.68) | 15 (4.76) | 651 (8.52) |
April | 199.80 ± 6.64a | 7.11 ± 0.23ab | 20.40 ± 1.33de | 24.76 ± 0.47a | 8.28 ± 0.09e | 694 (9.47) | – | 694 (9.08) |
May | 183.80 ± 5.09a | 6.95 ± 0.14a | 22.20 ± 1.74e | 24.60 ± 0.41a | 8.31 ± 0.08e | 325 (4.43) | – | 325 (4.25) |
June | 146.00 ± 2.76a | 6.96 ± 0.29a | 13.00 ± 1.14ab | 24.98 ± 0.46ab | 8.27 ± 0.08e | 445 (6.07) | – | 445 (5.82) |
July | 152.20 ± 7.01a | 7.05 ± 0.22ab | 17.40 ± 1.03 cd | 25.00 ± 0.52ab | 8.24 ± 0.09e | 349 (4.76) | – | 349 (4.57) |
August | 147.00 ± 5.52a | 7.13 ± 0.37ab | 12.00 ± 0.89a | 25.08 ± 0.48ab | 8.24 ± 0.08de | 405 (5.53) | – | 405 (5.29) |
September | 145.60 ± 3.44a | 7.59 ± 0.28b | 13.40 ± 1.29abc | 25.38 ± 0.55abc | 8.19 ± 0.10de | 452 (6.17) | 10 (3.18) | 462 (6.04) |