300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Nereocystis luetkeana [Bull Kelp]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
|
|
2
|
| Arithmetic Mean |
|
|
100.5%
|
| Standard Error |
|
|
57.6%
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Swanson and Fox (2007) |
Plants grown for 55 days in 750-L outdoor sea-tanks filled with unmodified nutrient-replete sub-tidal seawater overlain by shade screens that reduced light transmission by 50%, while other types of shades created low (0.08 W m-2) levels of UVB radiation
|
|
|
+182%
|
|
Swanson and Fox (2007) |
Plants grown for 55 days in 750-L outdoor sea-tanks filled with unmodified nutrient-replete sub-tidal seawater overlain by shade screens that reduced light transmission by 50%, while other types of shades created high (0.25 W m-2) levels of UVB radiation
|
|
|
+19%
|