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Table 1 Characteristics of the larval habitats in Boa Vista, Pacaraima and São João da Baliza

From: Larval habitats, species composition and distribution of malaria vectors in regions with autochthonous and imported malaria in Roraima state, Brazil

Municipalities Characteristics Larval Habitats
Site 1 Site 2 Site 3 Site 4 Site 5 Site 6
Boa Vista Habitat type Stream Lake Stream Stream
Area (sq m)  > 300  > 150 ≤ 300  > 300  > 150 ≤ 300
Water turbidity Turbid Transparent Turbid Transparent
Water current Stagnant Stagnant Slow Slow
Water temperature °C (M ± SD) 23.2 ± 10.5 22.3 ± 9.9 28.7 ± 14.9 27.8 ± 14.5
Water pH (M ± SD) 5.4 ± 2.4 4.7 ± 2.4 2.9 ± 3.1 3.4 ± 2.9
Distance from houses (m)  > 15  > 15  > 15  ≤ 8
Sunlight exposure Partly shaded Partly shaded Partly shaded Shaded
Debris Trunk/Roots/Leaves Trunk/Roots/Leaves Trunk/Roots/Leaves Trunk/Roots/Leaves
Vegetation Emerging/Marginal Emerging/Marginal
Floating/Underwater
Emerging/Floating
Marginal
Floating/Marginal
Pacaraima Habitat type Pond Stream Stream Stream Fishpond Stream
Area (sq m)  ≤ 150  > 150 ≤ 300  > 150 ≤ 300  ≤ 150  > 300  > 150 ≤ 300
Water turbidity Turbid Transparent Transparent Transparent Turbid Turbid
Current water Slow Moderate Slow Moderate Stagnant Slow
Water temperature °C (M ± SD) 20.9 ± 8.5 20.1 ± 8.1 19.2 ± 8.5 19.5 ± 8.6 22 ± 9.7 21.2 ± 9.4
Water pH (M ± SD) 5.5 ± 1 6.3 ± 2.8 6.9 ± 0.7 5.4 ± 2.4 7 ± 0.8 5.4 ± 2.2
Distance from houses (m)  ≤ 8  > 8 ≤ 15  ≤ 8  > 8 ≤ 15  > 15  > 15
Sunlight exposure Partly shaded Shaded Shaded Shaded Sunny Partly shaded
Debris Trunk/Roots/Leaves Trunk/Roots/Leaves Trunk/Roots/Leaves Trunk/Roots/Leaves Nothing Trunk/Roots/
Leaves/Fruits
Vegetation Floating/Underwater
Marginal
Emerging/Floating
Marginal
Emerging/Marginal Emerging/Marginal Underwater Emerging/Marginal Underwater
S.J. Baliza Habitat type Dam Stream Stream Stream Dam -
Area (sq m)  > 300  ≤ 150  > 300  > 150 ≤ 300  ≤ 150 -
Water turbidity Turbid Turbid Transparent Turbid Turbid -
Current water Slow Slow Slow Moderate Stagnant -
Water temperature °C (M ± SD) 27 ± 2.3 25.8 ± 1.1 25.1 ± 0.4 27.5 ± 1.7 26.6 ± 2.3 -
Water pH (M ± SD) 5.5 ± 2.3 5.5 ± 2.3 6.5 ± 0.8 5.5 ± 2.3 5.5 ± 3.5 -
Distance from houses (m)  > 8 ≤ 15  ≤ 8  ≤ 8  > 8 ≤ 15  > 15 -
Sunlight exposure Partly shaded Partly shaded Partly shaded Shaded Sunny -
Debris Trunk/Roots/Leaves Trunk/Roots/Leaves Trunk/Roots/Leaves Trunk/Roots/Leaves Nothing -
Vegetation Emerging/Marginal Emerging/Marginal Emerging/Marginal Emerging/Underwater Marginal Underwater -
  1. – Not done