Clean Lakes Program: Mink - Porter County

 

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Indiana Clean Lakes Program Lake Report

Mink

  

Porter County

1991

          
Sample Location: Deep Hole
Sample Date: 1991-08-12
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
1991
7.3
1.2
5.7
6
94.4
7.2
6.6
265
300
64.5
105
0.01
0.478
0.07
0.68
0.401
0.447
0.023
3.09
1.423
4.499
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
23.5
23
22.3
21.8
20
15
11.5
10.2
DO (mg/L)
8.7
9.2
8.1
8.5
2.5
0.3
0.3
0.3
0.3
                                                                           
% Water Column Oxic: 100
  
Blue-Green Dominance (% of NU): 67
  
          Carlson TSI: 61
                    Indiana TSI: 41
                                                                           
Blue-Greens (#/L): 19434   Greens (#/L): 620   Diatoms (#/L): 1964   Other Algae (#/L): 6100   Rotifers (#/L):   Zooplankton (#/L): 921
 
 

2001

          
Sample Location: Deep Hole
Sample Date: 2001-08-16
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
2001
7.3
2.9
31.9
7.05
6.6
230
220
66
98
0.01
0.01
0.047
0.269
0.4
0.032
0.019
0.018
0.677
0.877
3.047
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)
23.8
23.8
23.8
23.8
23.8
18.7
14.2
12
8.6
DO (mg/L)
2.9
2.8
2.7
2.7
2.5
6.9
0.7
0.5
0.4
                                                                           
% Water Column Oxic: 57
  
Blue-Green Dominance (% of NU): 78
  
          Carlson TSI: 42
                    Indiana TSI: 0
                                                                           
Blue-Greens (#/L): 4973   Greens (#/L): 232   Diatoms (#/L): 329   Other Algae (#/L): 369   Rotifers (#/L): 445   Zooplankton (#/L): 38
 
 

 

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)