The 2006 Shell Creek Watershed Study tested water quality at 5 sites along Shell Creek and its tributaries in May, June, July, and August. Water quality was assessed using tests for dissolved oxygen, E. coli, pH, biochemical oxygen demand, temperature, phosphates, nitrates, turbidity, and total solids. The National Sanitation Foundation's Water Quality Index was then calculated for each site and indicated water quality ranging from medium to very bad depending on the site and sampling date. Overall, the study provided a comprehensive water quality analysis of the Shell Creek watershed over multiple seasons.

1. 2006 Shell Creek
W atershed Study
Advisors – Mark Seier & Suzy Goedeken
Researchers – Amanda Gasper, Melissa Gasper,
Heather Schmidt, Tom O’Brien, Laura Johnson, Josh
Kaufman, Tim Wiese, Mandy Anderson, Jessica
Boschen, Sean Farrier, Brittany Julsen, Ann O’Brien,
Sheila O’Brien, Lynzee Pieke, Brett Roberg, Connie
Dohmen, Luke Gasper, Jesse Knust, Alyshia Nelson,
Skye Rosno, Darrek Schmidt & Kelsey Wallin
1

2. Shell Creek and Loseke-Taylor Creek Watersheds
(with Township-Range Labels)
Lower Platte North Natural Resources District
2

3. Site 1
3

4. Site 2
4

5. Site 3
5

6. Site 4
6

7. Site 5
7

8. W.Q.I.
• The Water Quality Index was developed by the
National Sanitation Foundation as a standard
system to compare different bodies of water.
• To determine the WQI, a series of nine tests
were performed. These tests were: dissolved
oxygen, fecal coliform, pH, Biological Oxygen
Demand (BOD), temperature, total phosphate,
nitrates, turbidity, and total solids. We also did a
water discharge test which we use to measure
the flow of the creek in cubic feet per second.
8

9. • After the tests are completed, the WQI for each
section of the creek can be computed.
• To formulate the WQI, we first computed Q-values.
• We multiply this number by a weighting factor, which
provides a measure of the relative importance of
each test to overall water quality.
• The water quality index ranges from zero to 100.
- 0 - 25 is very bad
- 25 - 50 is bad
- 50 - 70 is medium
- 70 - 90 is good
- 90 - 100 is excellent
• The bio-indicator tests weren’t part of W.Q.I., but did
give us a water quality rating.
9

10. Sample W.Q.I. Curve Chart
10

11. Sample W.Q.I. Form
Weighting T o t a l
Test Results Q-value Factor
DO % sat. 0.17
Fecal Coliform col/100 mL 0.16
pH units 0.11
BOD mg/L 0.11
Temperature change in C 0.1
Total Phosphate mg/L 0.1
Nitrates mg/L 0.1
Turbidity JTU 0.08
Total Solids mg/L 0.07
Overall Water Quality Index ___
11

12. Test Natural Readings Cautionary
Readings
Dissolved Oxygen % 90% or higher Below 90% unless the
waters are supersaturated
Saturation due to cultural
eutrophication.
pH 6.5-8.5 Below 6.5
Above 8.5
Nitrates 0.0-1.0 ppm Consistent readings
above 3.5 ppm
Change in The higher the change,
the worse the water
Temperature quality.
Turbidity 0-8 JTU’s Increasing trends in
turbidity measurements.
12

13. Test Natural Readings Cautionary
Readings
5 Day B.O.D The higher the difference
between the original and
the 5 day reading, the
worse the water.
Phosphates Less than 1 mg/L More than 1 mg/L
Total Solids The higher the
concentration, the
worse the water.
Fecal Coliform Over 200 colonies/100
mL of water
13

14. pH Change in Total Solids Fecal Discharge
Water Temp. (mg/ L) Coliform (cubic
(Degrees (Col./
100 ft./
sec.)
Celsius) mL)
May 27 Site 1 7.8 1.4 270 150 2.62
Site 2 7.7 -1.3 420 100 1.22
Site 3 7.9 0 590 750 2.65
Site 4 8.2 -0.5 510 200 4.53
Site 5 7.9 0.9 410 400 13.1
June 12
Site 1 7.75 1.55 390 125 2.575
& 13
Site 2 7.7 -0.6 460 175 1.08
Site 3 6.95 0.2 370 150 2.86
Site 4 7.85 -0.4 600 700 2.96
14
Site 5 8 0.7 510 550 12.2

15. Turbidity Dissolved Dissolved 5 Day Nitrates Phosphates
(JTU’s) Oxygen (% Oxygen B.O.D. (ppm)
(ppm)
Saturation) (ppm)
May 27 S 1
ite 23 60% 5.4 2.6 1.408 0.54
S 2
ite 41 41% 3.8 2.6 12.848 0.37
S 3
ite 51 53% 4.7 3.6 10.384 0.28
S 4
ite 139 9% 1.9 0 10.472 0.76
S 5
ite 36 25% 2.4 0 3.476 0.46
June 12
S 1
ite 13.5 69.5% 6.35 2.6 13.597 0.5
& 13
S 2
ite 39.5 31.5% 3.1 0.7 2.748 1.725
S 3
ite 23 68.5% 6.3 2.2 1.342 0.37
S 4
ite 125 27.5% 2.8 0.2 0 3.84
S 5
ite 55 43.5% 4.1 2.5 15 7.59 0.44

16. pH Change in Total Solids Fecal Discharge
Water Temp. mg/ L Coliform cubic
Degrees Col./
100 mL ft./
sec.
Celsius
July 17 &
Site 1 7.6 1.6 340 300 1.565
18
Site 2 7.25 -0.35 270 400 0.61
Site 3 7.7 0.55 630 600 1.1105
Site 4 8.15 -1.35 640 550 3.25
Site 5 7.85 1.55 510 2200 9.505
August 8 Site 1 7.5 0.9 980 85100 NA
Site 2 7.7 0.3 230 300 2.08
Site 3 7.9 -0.1 300 1 00 2.382
Site 4 7.9 -0.3 470 216 3.9
16
Site 5 7.9 0 2760 68100 NA

17. Turbidity Dissolved Dissolved 5 Day Nitrates Phosphates
JTU’s Oxygen % Oxygen B.O.D. (mg/L)
(ppm)
Saturation ppm
July 17
Site 1 19 19.5 1.65 1.15 13.024 4.54
& 18
Site 2 18 21.5 1.9 1 0.836 0.365
Site 3 73 32 2.6 .7 2.156 0.69
Site 4 135.5 19.5 1.7 .1 0 3.18
Site 5 55 57.5 4.85 2.25 9.878 1.275
August
Site 1 794 0 0 0 0 4.48
8
Site 2 58 25 2.3 1.2 1.408 0.92
Site 3 62 54 4.6 1.7 1.188 1.04
Site 4 108 46 4 3 0.09 0.69
17
Site 5 2096 0 0 0 3.036 1.58

18. May 27 Site 1
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 57 0.17 9.69
Fecal
Coliform Col./100mL 40 0.16 6.4
pH Units 90 0.11 9.9
B.O.D. Mg/L 70 0.11 7.7
Temp. Change in o C 90 0.10 9.0
Phosphates Mg/L 60 0.10 6.0
Nitrates Mg/L 94 0.10 9.4
Turbidity JTU 56 0.08 4.48
Total Solids Mg/L 63 0.07 4.41
18
Overall Water Quality Index 66.98 (medium)

19. May 27 Site 2
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 31 0.17 5.27
Fecal
Coliform Col./100mL 44 0.16 7.04
pH Units 91 0.11 10.01
B.O.D. Mg/L 70 0.11 7.7
Temp. Change in o C 90 0.10 9.0
Phosphates Mg/L 96 0.10 9.6
Nitrates Mg/L 45 0.10 4.5
Turbidity JTU 44 0.08 3.52
Total Solids Mg/L 45 0.07 3.15
Overall Water Quality Index 59.79 (medium)
19

20. May 27 Site 3
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 45 0.17 7.65
Fecal
Coliform Col./100mL 23 0.16 3.68
pH Units 86 0.11 9.46
B.O.D. Mg/L 70 0.11 7.7
Temp. Change in o C 93 0.10 9.3
Phosphates Mg/L 93 0.10 9.3
Nitrates Mg/L 50 0.10 5.0
Turbidity JTU 37 0.08 2.96
Total Solids Mg/L 20 0.07 1.4
Overall Water Quality Index 56.45 (medium)
20

21. May 27 Site 4
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 5 0.17 .85
Fecal
Coliform Col./100mL 35 0.16 5.6
pH Units 75 0.11 8.25
B.O.D. Mg/L 96 0.11 10.56
Temp. Change in o C 91 0.10 9.1
Phosphates Mg/L 50 0.10 5.0
Nitrates Mg/L 50 0.10 5.0
Turbidity JTU 5 0.08 .4
Total Solids Mg/L 20 0.07 1.4
Overall Water Quality Index 46.16 (bad)
21

22. May 27 Site 5
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 14 0.17 2.38
Fecal
Coliform Col./100mL 27 0.16 4.32
pH Units 85 0.11 9.35
B.O.D. Mg/L 96 0.11 10.56
Temp. Change in o C 92 0.10 9.2
Phosphates Mg/L 6 0.10 6.1
Nitrates Mg/L 91 0.10 9.1
Turbidity JTU 47 0.08 3.76
Total Solids Mg/L 46 0.07 3.22
Overall Water Quality Index 57.99 (medium)
22

23. June 12 & 13 Site 1
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 75 0.17 12.75
Fecal
Coliform Col./100mL 43 0.16 6.88
pH Units 90 0.11 9.9
B.O.D. Mg/L 70 0.11 7.7
Temp. Change in o C 90 0.10 9.0
Phosphates Mg/L 60 0.10 6.0
Nitrates Mg/L 48 0.10 4.8
Turbidity JTU 71 0.08 5.68
Total Solids Mg/L 48 0.07
23
3.36
Overall Water Quality Index 66.07 (medium)

24. June 12 & 13 Site 2
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 20 0.17 3.4
Fecal
Coliform Col./100mL 38 0.16 6.08
pH Units 88 0.11 9.68
B.O.D. Mg/L 90 0.11 9.9
Temp. Change in o C 90 0.10 9.0
Phosphates Mg/L 29 0.10 2.9
Nitrates Mg/L 90 0.10 9.0
Turbidity JTU 46 0.08 3.68
Total Solids Mg/L 39 0.07 2.73
Overall Water Quality Index 56.37 (medium)
24

25. June 12 & 13 Site 3
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 74 0.17 12.58
Fecal
Coliform Col./100mL 40 0.16 6.4
pH Units 90 0.11 9.9
B.O.D. Mg/L 70 0.11 7.7
Temp. Change in o C 91 0.10 9.1
Phosphates Mg/L 90 0.10 9.0
Nitrates Mg/L 94 0.10 9.4
Turbidity JTU 59 0.08 4.72
Total Solids Mg/L 50 0.07 3.5
Overall Water Quality Index 72.3 (good)
25

26. June 12 & 13 Site 4
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 18 0.17 3.06
Fecal
Coliform Col./100mL 23 0.16 3.68
pH Units 88 0.11 9.68
B.O.D. Mg/L 95 0.11 10.45
Temp. Change in o C 90 0.10 9.0
Phosphates Mg/L 18 0.10 1.8
Nitrates Mg/L 97 0.10 9.7
Turbidity JTU 5 0.08 0.4
Total Solids Mg/L 20 0.07 1.4
Overall Water Quality Index 49.17 (bad)
26

27. June 12 & 13 Site 5
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 40 0.17 6.8
Fecal
Coliform Col./100mL 24 0.16 3.84
pH Units 82 0.11 9.02
B.O.D. Mg/L 70 0.11 7.7
Temp. Change in o C 90 0.10 9.0
Phosphates Mg/L 65 0.10 6.5
Nitrates Mg/L 57 0.10 5.7
Turbidity JTU 36 0.08 2.88
Total Solids Mg/L 20 0.07 1.4
Overall Water Quality Index 52.84 (medium)
27

28. July 17 & 18 Site 1
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 10 0.17 1.7
Fecal
Coliform Col./100mL 30 0.16 4.8
pH Units 89 0.11 9.79
B.O.D. Mg/L 90 0.11 9.9
Temp. Change in o C 88 0.10 8.8
Phosphates Mg/L 16 0.10 1.6
Nitrates Mg/L 45 0.10 4.5
Turbidity JTU 61 0.08 4.88
Total Solids Mg/L 53 0.07 3.71
Overall Water Quality Index 49.68 (bad)
28

29. July 17 & 18 Site 2
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 12 0.17 2.04
Fecal
Coliform Col./100mL 27 0.16 4.32
pH Units 91 0.11 10.01
B.O.D. Mg/L 90 0.11 9.9
Temp. Change in o C 88 0.10 8.8
Phosphates Mg/L 90 0.10 9
Nitrates Mg/L 54 0.10 5.4
Turbidity JTU 63 0.08 5.04
Total Solids Mg/L 61 0.07 4.27
Overall Water Quality Index 58.78 (medium)
29

30. July 17 & 18 Site 3
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 20 0.17 3.4
Fecal
Coliform Col./100mL 25 0.16 4
pH Units 88 0.11 9.68
B.O.D. Mg/L 92 0.11 10.12
Temp. Change in o C 92 0.10 9.2
Phosphates Mg/L 61 0.10 6.1
Nitrates Mg/L 90 0.10 9.0
Turbidity JTU 28 0.08 2.24
Total Solids Mg/L 20 0.07 1.4
Overall Water Quality Index 55.14 (medium)
30

31. July 17 & 18 Site 4
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 9 0.17 1.53
Fecal
Coliform Col./100mL 26 0.16 4.16
pH Units 76 0.11 8.37
B.O.D. Mg/L 99 0.11 10.89
Temp. Change in o C 89 0.10 8.9
Phosphates Mg/L 20 0.10 2
Nitrates Mg/L 97 0.10 9.7
Turbidity JTU 5 0.08 0.4
Total Solids Mg/L 20 0.07 1.4
Overall Water Quality Index 47.35 (bad)
31

32. July 17 & 18 Site 5
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 48 0.17 8.16
Fecal
Coliform Col./100mL 18 0.16 2.88
pH Units 89 0.11 9.79
B.O.D. Mg/L 70 0.11 7.7
Temp. Change in o C 88 0.10 8.8
Phosphates Mg/L 33 0.10 3.3
Nitrates Mg/L 51 0.10 5.1
Turbidity JTU 37 0.08 2.96
Total Solids Mg/L 20 0.07 1.4
Overall Water Quality Index 50.0932
(medium)

33. August 8 Site 1
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 0 0.17 0
Fecal
Coliform Col./100mL 20 0.16 0.32
pH Units 93 0.11 10.23
B.O.D. Mg/L 97 0.11 1.067
Temp. Change in o C 91 0.10 9.1
Phosphates Mg/L 15 0.10 1.5
Nitrates Mg/L 96 0.10 9.6
Turbidity JTU 0.5 0.08 0.04
Total Solids Mg/L 20 0.07 1.4
33
Overall Water Quality Index 33.257 (bad)

34. August 8 Site 2
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 17 0.17 2.89
Fecal
Coliform Col./100mL 32 0.16 5.12
pH Units 90 0.11 9.9
B.O.D. Mg/L 94 0.11 10.34
Temp. Change in o C 92 0.10 9.2
Phosphates Mg/L 42 0.10 4.2
Nitrates Mg/L 92 0.10 9.2
Turbidity JTU 35 0.08 2.2
Total Solids Mg/L 67 0.07 4.69
34
Overall Water Quality Index 57.74 (medium)

35. August 8 Site 3
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 43 0.17 7.31
Fecal
Coliform Col./100mL 45 0.16 7.2
pH Units 86 0.11 9.46
B.O.D. Mg/L 89 0.11 9.79
Temp. Change in o C 90 0.10 9
Phosphates Mg/L 38 0.10 3.8
Nitrates Mg/L 95 0.10 9.5
Turbidity JTU 32 0.08 2.56
Total Solids Mg/L 59 0.07 4.13
35
Overall Water Quality Index 62.75 (medium)

36. August 8 Site 4
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 39 0.17 6.63
Fecal
Coliform Col./100mL 34 0.16 5.44
pH Units 86 0.11 9.46
B.O.D. Mg/L 63 0.11 6.93
Temp. Change in o C 89 0.10 8.9
Phosphates Mg/L 57 0.10 5.7
Nitrates Mg/L 96 0.10 9.6
Turbidity JTU 50 0.08 0.4
Total Solids Mg/L 32 0.07 2.24
36
Overall Water Quality Index 55.3 (medium)

37. August 8 Site 5
Test Results Q-Value Weighting Factor Total
D.O. % Sat. 0 0.17 0
Fecal
Coliform Col./100mL 20 0.16 0.32
pH Units 86 0.11 9.46
B.O.D. Mg/L 97 0.11 10.67
Temp. Change in o C 92 0.10 9.2
Phosphates Mg/L 28 0.10 2.8
Nitrates Mg/L 68 0.10 6.8
Turbidity JTU 50 0.08 0.4
Total Solids Mg/L 20 0.07 1.4
Overall Water Quality Index 41.05 (bad)
37

38. 2006 Precipitation
10
8
6
Inches
4
2
0
May June July August
Rainfall
38

39. pH
8.4
8.1
7.8 Site 1
p H Le ve l
Site 2
7.5 Site 3
7.2 Site 4
Site 5
6.9
6.6
6.3
Ma y 27 Jun e 12 & July 17 & Aug ust 8
13 18
Da te
39

40. Ch a nge in Wa te r Te mpe ra ture
2
1.5
1
De g re e s Ce lcius
Site 1
0.5 Site 2
Site 3
0 Site 4
Ma y 27 Jun e 12 & July 17 & Aug ust 8 Site 5
- 0.5 13 18
-1
- 1.5
Da te
40

41. Tota l Solid s
3000
2500
2000 Site 1
Site 2
mg/ L
1500 Site 3
Site 4
1000 Site 5
500
0
Ma y 27 Jun e 12 & July 17 & Aug ust 8
13 18
Da te
41

42. Fe ca l Coliform
2500
2000
colon ie s/ 100 m L
Site 1
1500 Site 2
Site 3
1000 Site 4
Site 5
500
0
Ma y 27 Jun e 12 & July 17 & Aug ust 8
13 18
Da te
*August 8-Site 1- 85,100 colonies/100 mL
Site 5-68,100 colonies/100 mL 42

43. Fecal Coliform
43

44. Flow
14
12
Cub ic fe e t p e r se con d
10 Site 1
8 Site 2
Site 3
6 Site 4
4 Site 5
2
0
Ma y 27 Jun e 12 & July 17 & Aug ust 8
13 18
Da te
44

45. Turbid ity
160
140
120
Site 1
100
Site 2
JTU's
80 Site 3
60 Site 4
Site 5
40
20
0
Ma y 27 Jun e 12 & July 17 & Aug ust 8
13 18
Da te
*Augst 8-Site 1 794 JTU’s
Site 5 2,096 JTU’s 45

46. Dissolve d O xyge n
7
6
5 Site 1
4 Site 2
ppm
Site 3
3 Site 4
2 Site 5
1
0
Ma y 27 Jun e 12 & July 17 & 18 Aug ust 8
13
Da te
46

47. Dissolve d O xyge n
100
90
80
70 Site 1
% Sa tura tion
60 Site 2
50 Site 3
40 Site 4
30 Site 5
20
10
0
Ma y 27 Jun e 12 & July 17 & Aug ust 8
13 18
Da te
47

48. 5 Da y Biologica l O xyge n De ma n d
6
5
4 Site 1
Site 2
ppm
3 Site 3
Site 4
2 Site 5
1
0
Ma y 27 Jun e 12 & July 17 & 18 Aug ust 8
13
Da te
48

49. N itra te s
16
14
12
Site 1
10
Site 2
ppm
8 Site 3
6 Site 4
Site 5
4
2
0
Ma y 27 Jun e 12 & July 17 & Aug ust 8
13 18
Da te
49

50. Phosph a te s
5
4.5
4
3.5 Site 1
3 Site 2
ppm
2.5 Site 3
2 Site 4
1.5 Site 5
1
0.5
0
Ma y 27 Jun e 12 & July 17 & Aug ust 8
13 18
Da te
50

51. Chemical Test Conclusion
• pH consistent
• D.O. consistently low
• Fecal coliform is increasing
• Phosphates are increasing
• May WQI averages consistent since 2003
• By site WQI averages are consistent within 5
points
• Each year from 2003-2005 WQI increased over
the summer
51

52. WQI Averages by Site
Site 1 54
Site 2 58
Site 3 62
Site 4 49
Site 5 50
WQI Averages by Date
May 27 57
June 12 & 13 59
July 17 & 18 52
August 8 50
52

53. WQI Averages by Site
70
60
50
40
2003 Averages
30 2004 Averages
2005 Averages
20 2006 Averages
10
0
Site 1 Site 2 Site 3 Site 4 Site 5
Site
53

54. WQI Averages by Date
80
70
60
50 2003 Averages
2004 Averages
40
2005 Averages
30 2006 Averages
20
10
0
May June July August
Month 54

55. 2003 to 2005 Chemical Test Average
Comparisons
12
10
8
2003 Averages
6
2004 Averages
4 2005 Averages
2006 Averages
2
0
pH
.
ge
es
es
p.
.D
m
at
at
ar
.O
Te
itr
ph
ch
B
N
os
is
in
D
Ph
e
ng
ha
Chemical Test
C
55

56. 2003 to 2005 Chemical Test Average Comparisons
1200
*2006 Fecal Coliform
1000 Average 8,058 col/100 mL
800
2003 Averages
600 2004 Averages
2005 Averages
400
2006 Averages
200
0
D.O. % Sat. Turbidity Fecal Coliform Total Solids
56
Chemical Test

57. Macro Invertebrates
Sensitive Somewhat Sensitive Tolerant
57

58. Sample Bio-Indicator Data Form
58

59. Bio-Indicator Comparison Chart
2002 & 2004-2006
20
18
16
14
12 Summer 2002
10 Summer 2004
8 Summer 2005
6 Summer 2006
4
2
0
Site 1 Site 2 Site 3 Site 4 Site 5
59

60. Bio-Indicator Ratings
14
si te 1
12
si te 2
10
si te 3
8
atings
si te 4
6 si te 5
R
4
2
0
M
ay Jn e
u Jl y
u Agu
u st
M th
on
60

61. Bio-Indicators Test Conclusions
• Average water quality-poor
• Water quality is poor-making macro
invertebrates hard to find
• Improvement from 2005
• Lower ratings than 2002 & 2004
61

62. Fish Study
1939 1972 1985 1989 1991 1992 1995 2006
Black X X X X X
Bullhead
Carp X X X X X
Fathead X X X X X X X X
Minnow
Sand Shiner X X X X X X
Red Shiner X X X X X X
Bigmouth X
Shiner
Brassy X
Minnow
62

63. Fish Study
1939 1972 1985 1989 1991 1992 1995 2006
Channel X X X
Catfish
Emerald X
Shiner
Flathead X
Chub
Freshwater
Drum
Plains X
Minnow
Quilback X X
63

64. Fish Study
1939 1972 1985 1989 1991 1992 1995 2006
River X
Carpsucker
Shortnose gar X
Shorthead X X
redhorse
Western Silvery X
Minnow
Silver Chub X
Flathead Catfish X
Speckled Chub X
Green Sunfish X X
Yellow Bullhead X
Total Fish Diversity 2 11 12 2 8 6 64 4 6

65. Black Bullhead
A e riurus m e la s
m
65

66. Fathead Minnow
Pim e p ha le s p ro m e la s
66

67. Sand Shiner
N tro p is s tra m ine us
o
67

68. Red Shiner
Ly p rine lla lutre us is
68

69. Green Sunfish
Le p o m is c y a ne llus
69

70. Yellow Bullhead
A e riurus na ta lis
m
70

71. Fish Study Conclusion
• Fish vary greatly over years
• With the information from Phil Chvala at
the Nebraska Game and Parks
Commision
– Fish diversity is a lot worse
– Better than in 1995
– 2006 study same diversity as 1992 study
• Can’t make any conclusions at this point
71

72. Using the
Equipment
72

73. Bio-Indicators
73

74. Lab Work
74

75. 75

76. Website
• http://newman.esu8.org/project.html
OR
• http://newman.esu8.org/
• Click “Our Students”
• Click “Student Projects”
• Click “Watershed Project”
• You can see our data and further
information concerning this project,
including pictures. 76

77. Thank You To:
• Lower Platte North Natural
Resource District
• PrairieLand RC&D
• Natural Resource Conservation
Service
• Nebraska Department of
Environmental Quality
• Shell Creek Watershed 77
Improvement Group

78. Special Thanks
• Dedicated
to Brittany
Julsen
78