Water Source 



Interacting Organism 



Observed Effects 

 in Filtered Water 



Reference Source 



Pond water containing 

 bloom of Anabaena 

 planktonica 



Pond water containing 

 bloom of Anabaena 

 spiroides 



Pond water containing 

 bloom of Anabaena 

 spiroides 



Pond water containing 

 bloom of Microcystis 

 flos aquae 



Pond water containing 

 bloom of Ceratuim 

 hirundinella 



Phormidium uncinatum 



Scenedesmus quadricauda 



Nitzschia palea 



Chlorella pyrenoidosa 



Pediastrum clathratum 

 var . punctulatum 



_P. boryanum 

 Cosmarium lundelll 



C . obtusatum 



Pediastrum clathratum 

 var . punctulatum 



P . boryanum 



Cosmarium lundellii 

 C . obstusatum 



Pediastrum clothratum 

 var . punctulatum 



_P. boryanum 



Scanedesmus quadricauds 



Cosmarium lundelli 



C . obstusatum 



Chlorella pyrenoidosa 



Phormidium uncinatum 



Nitzschia palea 



Pediastrum clathratum 

 var . punctulatum 



_P . boryanum 



Inhibition of growth 



Slight inhibition 

 Slight inhibition 

 Inhibition of growth 

 Inhibition of growth 



Slight inhibition 



Complete inhibition 

 with death of cells 



Inhibition of growth 



Complete inhibition, 

 with death of cells 



Inhibition of growth 

 Slight inhibition 



Increased growth 



over control 



Complete inhibition 

 with death of cells 



Lefevre, Jakob 

 and Nisbet (1952) 



51 



