"In lakes and seas silica plays an
intriguing role since it apparently accounts for the success of
diatoms, which dominate most aquatic systems," (Horne and Goldman,
1994). The diatoms use the silica to form rigid cell walls, or
frustrules. Reactive silica (H2SiO4) is
probably the only form available for diatom growth, so scientists
measure silica by looking at H2SiO4
concentrations.
|
Depth (in meters) |
|
|
|
|
June 6, 1998 |
0.69 |
0.69 |
0.64 (at 2 meters) |
|
June 13, 1998 |
1.39 |
1.44 |
1.57 (at 2 meters) |
|
June 20, 1998 |
>1.76 |
>1.76 |
>1.76 |
|
June 26, 1998 |
1.13 |
0.95 |
1.72 |
|
July 2, 1998 |
>1.76 |
>1.76 |
>1.76 |
|
July 10, 1998 |
0.84 |
0.95 |
0.73 |
|
July 21, 1998 |
>1.76 |
>1.76 |
0.03 |
|
July 28, 1998 |
1.28 |
1.36 |
1.46 |
|
August 8, 1998 |
1.10 |
1.17 |
N / A |
|
August 25, 1998 |
1.28 |
1.42 |
1.42 |
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