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Table 1 Band richness and diversity indexes calculated from the 16S and 28S rRNA DGGE profiles using relative band intensities (% of band intensity in relation to total profile intensity) for the natural biofilm substrata (Nat) in comparison to the artificial biofilm substrata (Art)

From: Representative sampling of natural biofilms: influence of substratum type on the bacterial and fungal communities structure

Bacteria (16S)

Fungi (28S)

Biofilm surface

Band richness

Shannon index (H′)

H′ max

Simpson index (1/D)

Band richness

Shannon index (H′)

H′ max

Simpson index (1/D)

Nat wood

15

2.7

2.7

14.3

19

2.9

2.9

16.3

Nat plant

14

2.6

2.6

11.7

24

3.2

3.1

20.7

Nat pebble

15

2.7

2.7

14.0

26

3.3

3.2

23.5

Nat sediment

19

2.9

2.9

17.5

25

3.0

3.2

18.3

Art Plexiglas®

12

2.3

2.4

13.3

29

3.3

3.3

23.0

Art wood

19

2.9

2.9

16.7

30

3.3

3.4

21.9

Art glass

10

1.1

2.3

34.3

24

3.1

3.1

20.8

River water

11

2.4

2.3

11.0

33

3.1

3.4

20.4