TABLE II 

 Summary of Studies of the Effect of Natural Waters containing 

 bloom communities on the growth of algae in culture. 



Water Source 



Interacting Organism 



Observed Effects 

 in Filtered Water 



Reference Source 



Canal water containing 

 bloom of Aphanizome- 

 non gracile 



Canal water containing 

 bloom of Oscillatoria 

 planctorica 



Canal water containing 

 bloom of Oscillatoria 

 planctorica 



Pond water containing 

 bloom of Anabaena 

 planktonica 



Cosmarium lundellii 



Inhibition of growth 



Micrasteris papillifera Inhibition of growth 



Pediastrum boryanum Inhibition of growth 



_P . clathratum v . punctulalum Inhibition of growth 

 Phormidium uncinatum Inhibition of growth 



No effect 



Nitzschia pa lea 



Micrasteris papillifera 

 Chlorella pyrenoidosa 



Cosmarium lundellii 

 C . obtusatum 



Micrasteris pacillifera 

 Pediastrum boryanum 

 Phormidium uncinatum 

 P. autumnale 



Scenedesmus quadricauda 



Pediastrum clathratum 

 var . punctulatum 



P ■ Boryanum 



Cosmarium lundellii 



C . obstusatum 



No effect 

 Inhibition of growth 



Inhibition of growth 

 Inhibition of growth 

 Inhibition of growth 

 Inhibition of growth 

 Inhibition of growth 

 Inhibition of growth 

 Inhibition of growth 



Complete inhibition 

 with death of cells 



Complete inhibition 

 with death of cells 



Complete inhibition 

 with death of cells 



No effect 



Lefevre, Jakob, 

 and Nisbet (1950) 



Lefevre, Jakob, 

 and Nisbet (1952) 



Lefevre , Jakob , 

 and Nisbet (1950) 



Lefevre, Jakob 

 and Nisbet (1950) 



Lefevre , Jakob 

 and Nisbet (1952) 



50 



