Cook Plant preoperational studies 1970 / John C. Ayers ... [et al.].

TABLE 11. Cook Plant benthos survey, 13 July 1966.
3 miles offshore. Sampling lines perpendicular to

Samples at 15 feet of depth, at 1 mile, at 2 miles, and at
shore. Organisms in numbers per square meter.

m, - -- - I - - - ---- `~ - c

Sample

Location

Amphipods

Oligochaetes

Sphaeriidae

Tendipedidae

-

Others
6

PPP-5
PPP-6
PPP-7
PPP-8
PPP-9
PPP-10
PPP-11
PPP-12

1/2 mile south of
Livingston Rd., 15 feet
1 mile offshore
2 miles offshore
3 miles offshore
Off Livingston Rd.,
15 feet

1
2
3

mile offshore
miles offshore
miles offshore

0
144
6,379
14,992
0
230
10,040
6,923
28
316
4,171
14,835
21
565
5,138
12,261

1,877
501
10,993
4,042
14,506
14,400
866
11,567
1,984
101
12,728
5,446
150
3,726
759
6,321

0
6
974
1,318
6
394
466
1,404
6
21
2,199
1,240
15
129
221
1,133

279
552
129
129
165
616
114
221
135
208
178
86
193
780
114
107

0
I

PPP-13 Off center of plant site,
15 feet

6
79
58
0
0
36
64
0
0
107
0
0
6
15
129

PPP-14
PPP-15
PPP-16

1
2
3

mile offshore
miles offshore
miles offshore

PPP-17 Off north edge of plant site,
15 feet

PPP-18
PPP-19
PPP-20

1
2
3

mile offshore
miles offshore
miles offshore

2
TABLE 12. Benthos, numbers per meter, Cook Station, Lake Michigan Environmental Survey. Distance offshore:
nominal 1 mile. Depth of water: 48-50 feet.
Date Amphipods Oligochaetes Sphaeriidae Tendipedidae Others
4 Oct. 1969 1,965 939 521 313 0
26 Apr. 1970 286 1,165 399 304 26 - leeches
6 June 1970 1,504 243 43 52 0