Absorption Spectra of Aquatic Plants

[NightStalker]

I just conducted a spinach leaf pigment chromatography paper lab and have come up with an absorption spectra for chlorophyll a and b, beta kerotene, and xanthophyll but one of the questions in the discussion is asinkg me what is expected in the absorption spectra if you were to use an aquatic plant instead of a spinach leaf.
Can anyone tell me what would be expected or lead me in the right path with a link, article, or some hints?
Thanks a lot!

[alextemplet]

I would think there would be more emphasis on absorbing blue light, since it tends to penetrate the deepest into the water. It would depend on how deep the plant lives, though, and whether or not it has leaves that project to or above the surface.

[NightStalker]

thanks alex, does anyone else have anything that I could incorporate into my report?