Lake Eau Claire Algae August 2006

Lake Eau Claire AlgaeAugust 2006

Olivia Buvala

Mission

• Chlorophyll a

• Algal types

• Photo library

Sampling

• Van Dorn

• 3 depths: 0 (surface), 3, 6 feet

• 4 days: 8/4, 8/18, 8/25, 8/29

• 8 sites on Lake Eau Claire

Chlorophyll a Analysis

• Filter for Chlorophyll a• Grind filter• Extract with acetone• Measure at different wavelengths:

630, 645, 665, 750 nanometers• Equation gives Chlorophyll a parts

per billion (Chl a mg/m3)

Chl a AnalysisAugust 4, 2006 Chl a mg/m3 per site

17.21

6.065.48

26.73

7.46.55

2.61

3.83.61

6.35

2.39

0

4.77

6.18

0.78

1.88

3.492.76

4.14

0

1.19

5.71

7.6

1.62

0

5

10

15

20

25

30

1 2 3 4 5 6 7 8Site

Chl a m

g/m

3

0 ft

3 ft

6 ft

Chl a AnalysisAugust 18, 2006 Chl a mg/m3

9.83

5.86

17.44

14.08

12.2411.26

16.4316.89

0.48

17.86

15.56

7.388.23

6.06

12.11

3.54

8.25

4.7

2.77

12.78

3.77

12.02

3.82

16.89

0

5

10

15

20

25

30

1 2 3 4 5 6 7 8Site

Chl a

mg/

m3

0 ft

3 ft

6 ft

Chl a AnalysisAugust 25, 2006 Chl a mg/m3

10.3

14.26

2.28

12.86

3.923.28

3.9

0

12.5211.61

13.79

6.6

11.77

2.21

8.48

0.51

5.28

9.1

0.95

8.99.62

3.89 4.1

5.31

0

5

10

15

20

25

30

1 2 3 4 5 6 7 8Site

Chl a

mg/

m3

0 ft

3 ft

6 ft

Chl a AnalysisAugust 29, 2006 Chl a mg/m3

2.85

6.2

2.29

6.52

14.09

6.5

1.55

0.21

3.674.26

0.07

2.24

0 0.26 0.171.08

0

6.56

0.08

3.21 2.82

0.36

1.78 1.55

0

5

10

15

20

25

30

1 2 3 4 5 6 7 8Site

Chl a

mg/

m3

0 ft

3 ft

6 ft

Chl a AnalysisDepth by Date Averages

9.48

3.253.7

13

8.9

8.125

7.25

8.43

5.89

5.01

1.672.04

0

2

4

6

8

10

12

14

0 ft 3 ft 6 ftDepth

Chl a

mg/

m3

4-Aug

18-Aug

25-Aug

29-Aug

Chl a AnalysisAll-Site Average per Day

10.01

7.19

2.79

5.58

0

2

4

6

8

10

12

1

Day Average

Chl a

mg/

m3 4-Aug

18-Aug

25-Aug

29-Aug

Conclusion

• Completing analysis

• Documenting algae

• Photo Library for Lake Eau Claire