Table 1 Summary of environmental characteristics across the 23 study sites including mean, minimum, maximum, and coefficient of variation (CV).

Watershed area (km²)

47.1

162

0.842

278

—

Watershed elevation (m)

285

15.0

196

347

—

Watershed mean P90

8.01

29.6

3.74

13.4

—

Watershed mean VCI

0.598

14.2

0.450

0.768

—

Watershed mean CC2

66.0

20.4

45.5

91.9

—

Watershed mean CC10

21.9

54.7

1.11

49.2

—

Black spruce (%)

43.1

58.8

0.00

82.9

—

Jack pine (%)

3.25

148

0.00

14.6

—

Mixedwood conifer (%)

8.06

101

0.00

31.8

—

Mixedwood hardwood (%)

12.6

111

0.00

48.3

—

Upland spruce fir (%)

7.55

105

0.00

32.7

—

Upland spruce pine (%)

8.50

99.4

0.00

36.9

—

Lowland conifer (%)

6.14

97.4

0.00

20.1

—

Intolerant hardwood (%)

3.75

133

0.00

14.7

—

Channel slope

0.0151

100

0.00322

0.0755

—

Stream depth (cm)

41.0

75.3

4.88

150

2.02

Stream flow (m s⁻¹)

0.083

15.9

0.055

0.098

1.84

Stream temperature (°C)

19.8

13.5

15.5

23.6

1.69

Stream dissolved oxygen (mg L⁻¹)

5.06

33.3

1.83

7.40

2.38

Stream pH

7.85

10.5

4.29

8.47

1.52

Stream conductivity (µmho cm⁻¹)

211

31.1

111

343

2.62

Stream dissolved organic matter (mg L⁻¹)

20.9

45.2

1.61

36.9

2.98

Stream total phosphorus (mg L⁻¹)

0.009

47.1

0.002

0.019

1.68

Stream total nitrogen (mg L⁻¹)

0.612

101

0.160

0.980

—