Phytoplankton of the seasonal surveys of 1977, and further pre- vs. post-operational comparisons at Cook Nuclear Plant / John C. Ayers, Susan J. Wiley.

TABLE 7. Means, standard errors, and numbers of observations of phytoplankton abundances by seasons, depth
zones, and inner and outer station groups in Cook Plant major surveys during 1977. Previous years have been

reported by Ayers, Southwick, and Robinson (1977) and Ayers (1978). Units are cells per ml.
Filam. = filamentous.

B-G = blue-greens,

(r
OO

Zone Inner,
Outer
14 APRIL 1977
0 Inner
Mean
S. E.
N
Outer
Mean
S. E.
N
1 Inner
Mean
S. E.
N
Outer
Mean
S. E.
N
2 Inner
Mean
S. E.
N
Outer
Mean
S. E.
N

Coccoid Fllam. Coccold Filam. Flagel- Centric Pennate Desmids Other
B-C B-G greens lreens ]ates diatoms diatoms algae

24.88
24.88
12
53.05
28.59
10
332.70
252.54
3
92.85
85.29
4
182.40
182.40
2
8.30
8.30
4

37.44
4.01
12
31. 33
5.77
10
51.40
24.09
3
31.47
5.49
4
35.65
1.7.45
2
19.47
9.74
4

97.97
23.44
12
90.37
31.28
10
66.33
20.28
3
50.97
18.63
4
76.25
21.55
2
34.40
17.20
4

0.97
0.66
12
1.65
1.1.3
10

0
0

3

2267.10
212.96
12
1891.40
229.20
10
1629.30
262.71
3
2319.20
326.49
4
1.486.40
27.35
2
1017.60
1.62.51
4

621.08
41.68
12
488.79
77.86
10
453.73
115.53
3
470.90
83.05
4
393.80
14.10
2
340.72
44.36
4

1972.60
201.45
12
1673.00
144.52
10
1531.00
211.33
3
1464.10
98.19
4
1312.30
156.65
2
603.97
176.37
4

0.83
0.59
12
0.33
0.33
10
1.10
1.10
3
0
0
4

Total

113.03
25.41
12
117.92
23.89
10
72.93
24.90
3
101.55
21.63
4

5135.80
437.46
12
4347.80
412.23
10
4138.50
701.19
3
4538.90
327.78
4

7.87
4.85
4
0
0
2
3.32
3.32
4

0
0

51.40 3538.30
0 364.80
2 2

2

0.82
0.82
4

82.90
54.39
4

2111.50
341.22
4