Research Article

A Comprehensive Analysis on Abundance, Distribution, and Bionomics of Potential Malaria Vectors in Mannar District of Sri Lanka

Table 6

Physicochemical characteristics (mean ± SE, range) of breeding habitats in the district of Mannar.

Breeding placesTemperature (°C)DO (mg/l)pH (25°C)Conductivity (μs/cm)Salinity (mg/l)TDS (mg/l)Turbidity (NTU)

Tank margin31.71 ± 0.07a,d5.84 ± 0.06a7.94 ± 0.04a,c1070.3 ± 26.7b,c527.2 ± 15.4b715 ± 18.6b30.53 ± 1.82b
(29.8 - 32.8)(3.8 - 7.1)(7.09 - 8.74)(539 – 1763)(244 – 764)(162 – 986)(3.72 - 76.8)
Waste water collection31.70 ± 0.10a3.45 ± 0.15a,c7.87 ± 0.05a,c3204 ± 294b1347 ± 103b1795 ± 136c,d36.32 ± 5.85b
(29.6 - 32.7)(1.85 - 5.88)(7.05 - 8.86)(1068 – 7843)(559 – 2746)(722 – 3283)(1.38 – 232)
Water storage tank31.38 ± 0.16a,b5.16 ± 0.15a,b,c7.81 ± 0.11a,c,d1403 ± 199b629 ± 40.5b744.8 ± 26.9b,c0.74 ± 0.14b
(30.8 - 31.7)(4.81 - 5.71)(7.48 - 8.12)(1047 – 2175)(538 – 729)(673 – 816)(0.42 - 1.21)
Field canal31.43 ± 0.08a,d5.54 ± 0.04a7.62 ± 0.04a,d1465 ± 115b,c759.1 ± 66.2b1058.4 ± 81.9b,e43.35 ± 5.91b,c
(30.2 - 31.9)(5.06 - 5.98)(7.28 - 7.96)(933 – 2387)(329 – 1349)(600 -1864(12.38 - 109
Main canal31.4 ± 0.09a5.0 ± 0.09a7.95 ± 0.06a,c10481 ± 1795a5656 ± 1106a6613 ± 1248a15.31 ± 1.33a
(30.1 - 32.1)(4.02 - 5.9)(7.25 - 8.64)(1836 – 25100)1033 - 146301323 - 16930(4.83 - 28.8)
Paddy field31.90 ± 0.08d,e5.27 ± 0.08c7.58 ± 0.05d1656 ± 84.7b,c905.7 ± 63.5b1172.7 ± 72.1b,e633.1 ± 83.8b,c
(30.5 - 32.8)(4.29 - 5.95)(6.55 - 7.96)(1003 – 2847)(522 – 1575)(735 – 1974)(23.5 – 1928)
Pond31.31 ± 0.07a5.60 ± 0.18a8.21 ± 0.095a4128 ± 683c2253 ± 400b2725 ± 447d,e25.96 ± 2.54c
(30.0 - 31.9)(4.21 - 11.6)(7.21 - 9.89)(852 – 26739)(426 -15622)(605 – 17623)(4.02 - 82.1)
Built well30.64 ± 0.09b4.61 ± 0.07b7.73 ± 0.0413c1830 ± 179b,d887.8 ± 87.7b,d1175 ± 122b4.52 ± 0.69 b
(29.0 - 32.3)(2.97 - 5.59)(7.15 - 8.53)(521 – 7243)(219 – 3562)(320 – 4537)(0.26 - 24.9)
Cemented tank30.60 ± 0.09b5.03 ± 0.13b7.93 ± 0.08a,c2882 ± 233b,c1175 ± 143b1610 ± 178b,d1.254 ± 0.113b,c
(30.1 - 31.6)(4.17 - 5.94)(7.33 - 8.47)(1172 – 3986)(429 – 1983)(712 – 2753)(0.34 - 1.97)
Lagoon water collection31.24 ± 0.19a,b5.68 ± 0.53a8.25 ± 0.16a34734 ± 1974d21105 ± 1344d23156 ± 1462f22.48 ± 2.35e
(30.0 - 32.4)(4.13 - 10.35)(7.33 - 9.15)(26000 – 45900)(15600 – 28700)(17060 – 30920)(11.9 - 37.5)
Burrow pit32.06 ± 0.15a,e5.76 ± 0.09a7.66 ± 0.07a,c1458.4 ± 87.4b,c589.2 ± 32.2b786.8 ± 6.88b,e56.85 ± 3.27b,c
(31.2 - 32.7)(5.33 - 6.13)(7.29 - 7.89)(1205 – 1865)(453 – 785)(776 – 848)(34.14 - 75.3)
Rain water pool31.59 ± 0.12a4.28 ± 0.076a8.65 ± 0.1b,d7795 ±473a3473 ± 282c4917 ± 340a29.77 ± 2.17a
(30.2 - 32.4)(3.28 - 4.93)(8.03 - 9.89)(4929 – 14720)(2023 – 8283)(2973 – 9744)(17.73 - 59.22)

Note: values are given to the nearest significant decimal. Different superscript letters in a row show significant differences ( < 0.05) indicated by Tukey’s multiple comparison after Kruskall-Wallis test.