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Seattle. 3s Washington
Values for Plankton Activity rtby Values for Surface Water
Activity (filtrate + filter, less K 0): on an Equal Weight Basis
23
310
29
38
420
53
59
73
73
90.
94
510
510
520
610
610
760
H6
—_
1500
350
4o
99
1500
320
1500
1700
500
.
100
110
120
. 130
. 160
180
190
.190 .
200,
-°——tit
220
280
280
280
Average
Minimum
Maximum
Median
1900
2000
2000
2100
2200
2300
2300
790
850
. . 870
950
970
970
1000
~
1100
1100
*~ 1200
1200
,
1400
- 1400
1500
2600
3100
3500
3700
7600
8600
8900
-- 9300
-12000
14000
14000
15000
|.
2000
23
15000
T90
Cc
~
%