Table 3 Diversity indices of samples from Faraglioni beach after collapsing 16S rRNA gene sequences to different taxonomic levels

 Shore-line

3.36

1.47

0.50

1.33

19

21.00

5.29

 Mid-line

3.02

1.40

0.47

1.26

20

21.00

3.40

 Upper-line

2.41

1.27

0.41

1.09

23

23.75

2.29

 Shore-line

6.19

2.11

0.55

1.26

47

54.20

9.02

 Mid-line

7.61

2.36

0.60

1.18

50

57.00

10.27

 Upper-line

6.37

2.17

0.54

1.04

57

62.25

8.28

 Shore-line

4.39

2.10

0.46

1.41

97

140.88

29.00

 Mid-line

5.34

2.34

0.50

1.31

104

147.88

29.00

 Upper-line

6.73

2.32

0.49

1.16

117

153.91

21.51

 Shore-line

17.06

3.54

0.70

1.76

153

235.50

33.62

 Mid-line

9.10

3.21

0.62

1.51

178

262.91

31.25

 Upper-line

6.51

2.53

0.47

1.24

218

598.00

153.90