Table 1 Geographical coordinates and summary of abiotic and biotic characteristics of the three sampling sites

Latitude

42°08′50″N

42°07′50″N

42°07′30″N

Longitude

08°50′15″W

08°49′13″W

08°50′15″W

Depth (m)

7

4

7

Gravel (%)

6.56 ± 8.05

0.27 ± 0.58

5.41 ± 7.94

Sand (%)

89.78 ± 8.37

94.70 ± 2.33

88.80 ± 8.00

Silt/Clay (%)

3.66 ± 1.45

5.03 ± 2.51

5.80 ± 1.92

Q₅₀ (mm)

0.27 ± 0.18

0.16 ± 0.06

0.25 ± 0.14

S _o

Poor to moderately well sorted

Moderate

Bad to moderate

TOM (%)

1.72 ± 0.28

2.26 ± 0.32

3.05 ± 0.44

N

64–5,982 (2,499)

4–254 (334)

46–2,725 (2,630)

S

6–19 (28)

1–7 (18)

6–23 (40)

H′

1.06–3.26

0–1.88

2.20–3.59

J′

0.25–0.91

0.28–0.87

0.66–0.85