Effects of light and nutrients on Ulva lactuca and Ulvaria obscura

This data set includes responses of Ulva lactuca and Ulvaria obscura to manipulations of light levels and seawater nitrate concentrations. Algae were grown for two weeks in ESAW media that contained sodium nitrate concentrations of either 10 or 160 µM. at the end of the experiment they were harvested and measurements were made. The following columns are in the Excel files:

Sample ID:
First character: O: Ulvaria obscura / L: Ulva lactuca
Second character: H: High light level / S: Shaded (low light level)
Third character: N: Nitrogen replete / D: Nitrogen limited
Fourth and fifth characters: replicate number

Alga: Genus name
Light: Experimental irradiance (in µeinsteins/m2/sec)
[N]: Nitrate concentration (in µM)
Yield: photosynthetic yield (as Fv/Fm)
SA: surface area (in mm2)
PG (M): proportional growth in mass
PG (SA): proportional growth in surface area
SA:M: PG (SA)/PG (M)
DMSP: dimethylsulfoniopropionate concentration (in µmol/g dry mass of algae)
DA: dopamine concentration (in µmol/g dry mass of algae)
C: carbon concentration (% of algal dry mass)
N: nitrogen concentration (% of algal dry mass)
Chl a: chlorophyll a concentration (% of algal dry mass)
Chl b: chlorophyll b concentration (% of algal dry mass)
TC: total carotenoids (% of algal dry mass)