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Division rate of the temperate diatom Phaeodactylum tricornutum at very low light levels as reported by Geider et al. (1986). Grow irradiance is shown both as an incident flux and daily dose
| Irradiance (μmole m−2 s−1) | Irradiance (mole m−2 day−1) | Specific division rate (day−1) |
|---|---|---|
| 0.75 | 0.065 | 0 |
| 1.3 | 0.112 | 0.016 |
| 2.1 | 0.181 | 0.026 |
| 3.5 | 0.302 | 0.045 |
