The seasonal biological surveys of 1971 / John C. Ayers, Samuel C. Mozley, John A. Stewart.

TABLE 6. Number of phytoplankton species or groups, number of individuals per milliliter, and diversity
indices of the 1971 station collections.

Station Species Indivi- Div. Station Species Indivi- Div.
or groups duals/ml index or groups duals/ml index.9

DC-1
DC-2
DC-3
DC-4
DC-5
DC-6
NDC-. 25-1
NDC-. 5-0
NDC-. 5-1
NDC-.5-2
NDC-.5-3
NDC-1-0
NDC —1i
NDC-1-2
NDC-1-3
NDC-2-0
NDC-2-1
NDC-2-2
NDC-2-3
NDC-2-4
NDC-4-0
NDC-4-1
NDC-4-2
NDC-4-3
NDC-4-4
NDC-7-1
NDC-7-2
NDC-7-3
NDC-7-4
NDC-7-5
Snr. — 2S

15 APRIL 1971
18
21
18
33
18
19
18
12
18
19
21
14
i —
17
19
13
19
21
16
17
20
24
18
24
21
18
34

341
335
455
233
90
133
296
686
1,036
393
587
860
--
464
228
1,001
741
— m
90
174
1,450
623
313
191
--
1,041
429
170
846

3.21
3.25
2.95
3.83
3.18
2.67
3.22
2.60
3.09
2.91
3.10
2.76
3.17
3.22
2.99
3.11
3.34
2.87
2.90
3.25
3.35
2.68
3.17
3.18
3.31
3.50

SDC-. 5-0
SDC-. 5-1
SDC-. 5-2
SDC-.5-3
SDC-1-0
SDC-1-1
SDC-1-2
SDC-1-3
SDC-2-0
SDC-2-1
SDC-2-2
SDC-2-3
SDC-2-4
SDC-4-0
SDC-4-1
SDC-4-2
SDC-4-3
SDC-4-4
SDC-7-1
SDC-7-2
SDC-7-3
SDC-7-4
SDC-7-5

16
22
28
25
24
21
24
25
21
16
21
24
25
23
20
22
11
21
24
19
24
24

1,662
1,096
618
275
1,613
556
599
268
1,728
764
254
325
219
1,027
275
196
23
543
449
274
179
177

3.09
3.23
3.26
3.33
3.30
3.32
3.16
3.55
3.07
3.02
3.33
3.37
3.01
3.32
3.23
3.14
2.48
3.07
3.28
3.28
3.37
3.14
3.15

Overall ave. diversity index

9 JULY 1971

DC-1
DC-2
DC-3
DC-4
DC-5

36
26
44
40

1,305
177
1,652
561

— t
1.20
3.13
1.89
2.52