30 



25 



20 



15 



12 



o 

 a: 



10 



10 20 30 40 50 60 70 

 PERCENT RESIDUAL PHOTOSYNTHESIS 



80 



90 



100 



FIG. 55 24 HOUR, 50 PERCENT REDUCTION OF PHOTOSYNTHETIC RATE OF THALASSIA 



TESWDINUM EXPOSED TO VARIOUS DILUTIONS OF DESALINATION PLANT EFFLUENT. 



130 



