ACTION SPECTRUM OF RED AND ELITE ALGAE 



llSl 



Ulva taeniata 

 — ^ Thollus obsorption 

 Action spectrum 



c 



80 



30 



40 



•^. 20 



z 



o 



P 



a. 



a: 



o "" 



in 



m 



< 



E 



Delesseria decipiens 

 —^ Thollus absorption 

 Action spectrum 



Aqueous extract 



G 



100 

 80 

 60 

 40 



go- 



/ Porphyra perforata 

 ( Red portion) 



Absorption 



Action spectrum 



-I — I — I — . — I I I . I I I . 



J Ll^J l_ 



400 480 560 640 720 



WAVE LENGTH, m/i 



CO''odesme 



^— Thallus absorption 



Action spectrum 



B 



Porphyra nereocystis 



— — Thallus absorption 



Action spectrum 



Extracted 



phycoeryfhrin 



D 



Porphyra perforata 

 (Slate grey portion) 



Thallus 



absorption 

 Action spectrum 



400 480 560 640 



WAVE LENGTH, m/x 



720 



Fig. 30.11. Action spectra after Haxo and Blinks (1950). 



