Table 6.2. Oxygen concentrations and temperatures in the central depression of Lawrence Lake, Barry Co., Michigan. Altitude =
274 m.
April 17,72
May 1,72
July 11, 72
August 22, 72
October 16, 72
October 30, 72
November 13, 72
Depth
O
2
O
2
O
2
O
2
O
2
O
2
O
2
(m)
°C
(mg/I)
°C
(mg/I)
"C
(mg/I)
C
(mg/l)
°C
(mg/l)
°C
(mg/I)
DC
(mg/l)
0
7.8
11.35
12.9
10.55
22.2
9.22
25.2
8.28
12.9
8.80
9.3
8.89
7.8
9.57
1
7.8
12.8
22.2
25.2
12.9
9.4
7.8
2
7.6
11.1
21.6
24.6
12.8
9.3
7.8
3
7.5
11.20
10.0
11.61
20.8
8.91
22.5
10.80
12.8
8.84
9.3
8.86
7.8
9.37
4
7.5
9.0
19.3
21.2
12.8
9.3
7.8
5
7.5
11.68
8.3
11.52
16.9
10.32
19.7
9.93
12.8
8.72
9.3
10.01
7.R
9.47
6
6.6
8.0
13.9
16.7
12.8
9.3
7.8
7
5.3
11.89
7.8
11.14
11.7
11.76
13.6
10.69
12.8
8.72
9.3
8.91
7.8
9.45
8
5.0
7.3
9.7
11.1
12.7
9.3
7.8
9
4.8
5.3
8.6
9.6
10.6
9.3
7.8
10
4.7
11.40
4.9
10.66
7.8
7.89
8.6
2.81
9.3
0.83
9.3
8.61
7.8
9.78
11
4.6
4.9
7.2
8.0
8.7
9.2
7.8
12
4.4
10.42
4.9
7.29
6.9
2.49
7.7
0.31
8.4
0.06
8.7
1.28
7.8
9.44
12.5
4.4
5.0
6.7
7.3
8.1
8.1
7.9
.....
00
m
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(I)
...
n
iii'
(I)
en