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Table 1 Environmental variable results from the habitat surveys, water quality monitoring, and temperature loggers in Indian Mill Creek (IMC), Michigan, USA (2017) (mean ± standard deviation). SSC suspended sediment concentration, BC Brandywine Creek, WAD Walker Avenue Ditch

From: Relating environmental variables with aquatic community structure in an agricultural/urban coldwater stream

Site

Riffles (% area)

Pools (% area)

Riparian Scr. (P 51)

% Fine Substrate

Wood Deb. (per 100 m)

Velocity

(m s-1)

SSC (ppm)

Bedload

(kg day-1)

Slope

(m km-1)

Avg. Temp. (°C)

Temp. Fluct. (°C)

Hours >19 °C

Max. Temp. (°C)

IMC1

0

0

23

58

0

0.17 ± 0.08

12.8 ± 9.6

28 ± 66

5.78

-

-

-

-

IMC2

4

9

12

71

0

0.16 ± 0.04

2.6 ± 1.5

27 ± 43

3.54

-

-

-

-

IMC3

0

48

27

69

9

0.15 ± 0.07

4.4 ± 3.4

53 ± 108

2.23

-

-

-

-

IMC4

19

47

42

60

22

0.54 ± 0.13

7.8 ± 7.2

124 ± 99

4.26

18.3 ± 1.0

4.8

547

21.4

IMC5

35

17

31

23

30

0.27 ± 0.07

5.4 ± 5.3

8 ± 9

4.91

18.2 ± 1.0

5.7

549

22.5

IMC6

46

14

43

20

14

0.48 ± 0.18

4.9 ± 5.0

200 ± 432

5.02

17.7 ± 1.0

4.5

295

21.3

IMC7

21

30

31

33

16

0.55 ± 0.05

9.1 ± 11.8

2426 ± 2984

4.26

16.2 ± 0.7

5.3

45

21.0

BC

21

50

35

86

29

0.12 ± 0.08

3.3 ± 2.1

74 ± 146

3.36

-

-

-

-

WAD

0

65

29

90

1

0.05 ± 0.10

2.7 ± 1.2

19 ± 22

9.22

-

-

-

-