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Table 2 Snail abundance and water parameters for each sampling site

From: High prevalence of urinary schistosomiasis in a desert population: results from an exploratory study around the Ounianga lakes in Chad

Site*

Snail species

No. of snails found

Temperature (°C)

Conductivity (µs/cm)

pH

Oxygen (mg/L)

Turbidity (FNU)

Sampling sites where snails were present

 Ounianga Kebir

  Yoa (Girki)

1*

No host snail species

0

17.5

1054.0

6.8

2.7

1.3

2*

B. truncatus

28

14.5

1046.0

6.9

4.1

2.5

R. natalensis

6

  Yoa (source 2)

3*

R. natalensis

19

22.7

1941.0

7.1

3.2

1.9

4*

R. natalensis

7

22.8

2.56

7.0

3.0

3.7

 Ounianga Serir

  Agouta

R. natalensis

7

14.5

8.0

8.3

4.9

3.5

  Djara

B. truncatus

4

19.7

6.0

8.5

6.6

2.4

  Boku

B. truncatus

6

20.8

1524.0

8.8

8.8

5.9

R. natalensis

3

  Bedrim

No host snails species

0

18.7

7.3

8.4

5.2

3.0

Sampling sites where no snails were present

 Ounianga Kebir

  Yoa 5 (hot source)

28.4

2.8

7.0

2.9

4.9

  Yoa 6 (hot source)

27.7

2107.0

7.4

3.2

16.3

  Yoa 7 (lake)

14.4

290.0

10.3

1.1

158.0

  Uma red

27.5

> 2000.0

10.1

14.2

85.8

  Uma blue

18.6

> 2000.0

10.5

15.0

118.0

  Uma (hot spring)

28.2

4.0

9.1

3.6

14.9

  Forodone

19.1

31.1

9.8

2.0

> 1000.0

 Ounianga Serir

  Telli

21.3

13.7

10.7

2.7

4.5

  Edem

14.1

3.5

8.7

8.3

1.0

  1. *All sampling sites are shown in Fig. 2