TABLE 3.
Dark leucine uptake rates and means at low and high irradiance in the uptake versus irradiance experimentsa
| Station | Depth (m) | Uptake rate (pmol of Leu liter−1 h−1)
|
||
|---|---|---|---|---|
| Dark | Irradiance
|
|||
| Low | High | |||
| D | 5 | 36.1 (+102) | 17.9 | 39.0 (+118) |
| 40 | 5.6 (−40) | 9.3 | 16.9 (+81) | |
| F | 5 | 23.1 (+86) | 12.4 | 19.7 (+58) |
| 40 | 35.0 (−19) | 42.9 | 14.8 (−65) | |
| C | 5 | 98.7 (+144) | 40.5 | 79.2 (+96) |
| 40 | 75.8 (+52) | 49.8 | 88.3 (+77) | |
| Fb | 5 | 31.9 (−13) | 36.9 | 48.4 (+31) |
| 40 | 1.7 (−26) | 2.4 | 8.1 (+245) | |
| Mean (%) | +54 | +61 | ||
| SE (%) | 29 | 27 | ||
a
Low and high irradiance values are the respective averages of the light bottles incubated at <100 and >100 μmol of photons m−2 s−1 (n = 3 each) (see Fig. 2 and 3). The value in parentheses is the percent difference of dark and high irradiance values relative to the low irradiance value. Mean percent differences do not include the night experiment.
b
Sampled at night.