Test Organism 



TABLE I 

 Summary of laboratory studies on the production of physiologically 

 active metabolites by algae in culture 

 Interacting Organism Observed Effects 



Reference Source 



Chlorella vulgaris 

 C . vulgaris 



C. \ailgaris 



G. vulgaris 

 C . vulgaris 

 C . vulgaris 

 C . vulgaris 

 C_. pvrenoidosa 

 C . pvrenoidosa 

 C . pyrenoidosa 



C . pyrenoidosa 



C . pyrenoidosa 



Scenedesmus 

 quadricauda 



S^. quadricauda 

 S. quadricauda 

 S . quadricauda 



Chlorella vulgaris 

 Chlorella vulgaris 



Nitzschia frustulum 



Scenedesmus quadricauda 



Chlamydomonas reinhardi 



Haematococcus pluvialis 



Daphnia magna 



Euglena deses 



Pediastrum duplex 



Pediastrum clathratum 

 var . punctulatum 



Nitzschia pa lea 

 Scenedesmus quadricauda 

 Phormidium uncinatum 



P. uncinatum 



Scenedesmus Oahuensis 



Pediastrum borvanum 



Autoinhibition observed 

 in culture filtrates 



Stimulating effect of 

 filtrate in low concen- 

 tration 



Mutual inhibition in 

 mixed culture and in- 

 hibition in filtrate 



Inhibition in mixed 

 culture 



Inhibition in mixed 

 culture 



Inhibition in mixed 

 culture 



Inhibited rate of 

 filter feeding 



Inhibition in mixed 

 culture 



Inhibition in mixed 

 culture 



Inhibition in mixed 

 culture 



Inhibition by filtrate 



Acceleration by filtrate 



Stimulation by filtrate 

 of young culture 



Inhibition by filtrate 

 of old culture 



Inhibition by filtrate 

 of old culture 



Inhibited by culture 

 filtrate 



Pratt (1940) 

 Pratt (1942) 



Rice (1954) 



Proctor (1957) 

 Proctor (1957) 

 Proctor (1957) 

 Ryther (1954) 



Lefevre and 



Nisbet (1948) 



Lefevre and 



Nisbet (1948) 



Lefevre, Nisbet 

 and Jakob 

 (1950) 



J^rgensen (1956) 



Jpfrgensen (1955) 



Lefevre and Jakob 

 (1949) 



Lefevre and Jakob 

 (1949) 



Lefevre and Jakob 

 (1949) 



Lefevre and Nisbet 

 (1948) 



43 



