Clean Lakes Program: Fish - Elkhart County

 

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Indiana Clean Lakes Program Lake Report

Fish

 

Elkhart County

1990

         
Sample Location: Deep Hole
Sample Date: 1990-08-20
Year
Max Depth
(m)
Secchi
(m)
Light 3'
(%)
1% Light Level
(ft)
DO @5'
(%)
pH
Epi
pH
Hypo
Cond
Epi
Cond
Hypo
Alk
Epi
Alk
Hypo
SRP
Epi
SRP
Hypo
TP
Epi
TP
Hypo
Chl-a
(ug/L)
NO3
Epi
NO3
Hypo
NH3
Epi
NH3
Hypo
TKN
Epi
TKN
Hypo
1990
9.4
1.8
35
14
107
7.3
6.9
255
248
102.9
133.3
0.01
0.17
0.044
0.222
0.367
0.316
0.033
1.644
1.619
1.71
Depth (m)
 0 
 1 
1.5
 2 
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Temp (oC)
24.9
24
20.5
16.1
11.5
9.5
8.3
8
7.5
DO (mg/L)
8.8
9.2
5.5
0.3
0
0
0
0
0
                                                                           
% Water Column Oxic: 44
 
Blue-Green Dominance (% of NU): 98
 
          Carlson TSI: 56
                    Indiana TSI: 38
                                                                           
Blue-Greens (#/L): 84741   Greens (#/L): 637   Diatoms (#/L): 0   Other Algae (#/L): 1274   Rotifers (#/L): 80   Zooplankton (#/L): 0
 
 

1993

         
Sample Location: Deep Hole
Sample Date: 1993-07-13
Year
Max Depth
(m)
Secchi
(m)
Light 3'
(%)
1% Light Level
(ft)
DO @5'
(%)
pH
Epi
pH
Hypo
Cond
Epi
Cond
Hypo
Alk
Epi
Alk
Hypo
SRP
Epi
SRP
Hypo
TP
Epi
TP
Hypo
Chl-a
(ug/L)
NO3
Epi
NO3
Hypo
NH3
Epi
NH3
Hypo
TKN
Epi
TKN
Hypo
1993
9.4
1.2
28
8
108
8.3
7.1
260
265
92.5
133
0.01
0.886
0.053
1.071
16.68
0.029
0.087
0.026
0.212
0.788
2.067
Depth (m)
 0 
 1 
1.5
 2 
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Temp (oC)
28
27
26.1
25.1
19.1
13.5
11
9.3
8.2
7.2
7
DO (mg/L)
9.4
9.9
9
5.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
                                                                           
% Water Column Oxic: 20.6
 
Blue-Green Dominance (% of NU): 60
 
          Carlson TSI: 59
                    Indiana TSI: 50
                                                                           
Blue-Greens (#/L): 78615   Greens (#/L): 22176   Diatoms (#/L): 3881   Other Algae (#/L): 25281   Rotifers (#/L): 1392   Zooplankton (#/L): 0
 
 

2000

         
Sample Location: Deep Hole
Sample Date: 2000-07-24
Year
Max Depth
(m)
Secchi
(m)
Light 3'
(%)
1% Light Level
(ft)
DO @5'
(%)
pH
Epi
pH
Hypo
Cond
Epi
Cond
Hypo
Alk
Epi
Alk
Hypo
SRP
Epi
SRP
Hypo
TP
Epi
TP
Hypo
Chl-a
(ug/L)
NO3
Epi
NO3
Hypo
NH3
Epi
NH3
Hypo
TKN
Epi
TKN
Hypo
2000
9.4
1.6
62
14
121.1
8.4
7.2
284
233.2
101
130
0.01
0.741
0.058
0.846
9.48
0.022
0.022
0.057
1.482
1.101
2.78
Depth (m)
 0 
 1 
1.5
 2 
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Temp (oC)
24.6
24.2
24.1
24.1
24
18.8
13.9
11.2
9.8
9.1
8.8
DO (mg/L)
9.4
10.46
10.18
10.16
8.72
0.88
0.32
0.29
0.28
0.26
0.26
                                                                           
% Water Column Oxic: 44
 
Blue-Green Dominance (% of NU): 55
 
          Carlson TSI: 56
                    Indiana TSI: 41
                                                                           
Blue-Greens (#/L): 42668   Greens (#/L): 5186   Diatoms (#/L): 393   Other Algae (#/L): 28445   Rotifers (#/L): 471   Zooplankton (#/L): 19.7
 
 

2003

         
Sample Location: Deep Hole
Sample Date: 2003-07-15
Year
Max Depth
(m)
Secchi
(m)
Light 3'
(%)
1% Light Level
(ft)
DO @5'
(%)
pH
Epi
pH
Hypo
Cond
Epi
Cond
Hypo
Alk
Epi
Alk
Hypo
SRP
Epi
SRP
Hypo
TP
Epi
TP
Hypo
Chl-a
(ug/L)
NO3
Epi
NO3
Hypo
NH3
Epi
NH3
Hypo
TKN
Epi
TKN
Hypo
2003
9.75
0.8
11
6
107
8.9
7.2
296
233
119
151
0.01
0.803
0.04
0.802
26.44
0.013
0.013
0.018
1.604
1.736
2.572
Depth (m)
 0 
 1 
1.5
 2 
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Temp (oC)
25.2
25.2
25.1
25.1
21.5
14.9
12.3
10.5
8.7
8.3
DO (mg/L)
11.3
9
8.7
8.6
0.1
0
0
0
0
0
                                                                           
% Water Column Oxic: 20.5
 
Blue-Green Dominance (% of NU): 88
 
          Carlson TSI: 61
                    Indiana TSI: 53
                                                                           
Blue-Greens (#/L): 95470   Greens (#/L): 796   Diatoms (#/L): 159   Other Algae (#/L): 10183   Rotifers (#/L): 1750   Zooplankton (#/L): 69.6
 
 

 

In 2011 CLP changed plankton sampling methods, thus the Indiana TSI is no longer calculated.
Epi
Epilimnion
Alk
Alkalinity (mg CaCO3/L)
DO
Dissolved Oxygen (mg/L)
NH3
Ammonia (mg-N/L)
SRP
Soluable Reactive Phosphorus (mg-P/L)
Hypo
Hypolimnion
Chl-a
Chlorophyll-a (ug/L)
Light 3'
Percent light penetration at 3ft
NO3
Nitrate (mg-N/L)
TP
Total Phosphorus (mg-P/L)
   
Cond
Conductivity
1% Light Level
Depth of the 1% light level (ft)
TKN
Total Kjeldahl Nitrogen (mg-N/L)
Temp
Temperature (oC)