PHYTOPLANKTON 

 468 



ALLOCHTHONOUS 



ORGANIC MATTER 



250 



DEAD FISH 

 OF STREAMS 



250 



JL 



PLANKTONIC 

 BACTERIA 

 202 



200 



JL 



PROTOZOA 

 89 



12 



CYCLOPS 

 12 



10 



FISHES 



7 



7 



1 



NON PREDATORY ORGANIC MATTER 

 169 



100 

 SEDIMENTATION AND OUTFLOW 



Figure 7-6. Energy flow diagram for a particular lake. Generalized 



relationships of the average energy flow in the pelagic zone 

 of Dalnee Lake, Kamchatka, USSR, during the month of July. 

 Data expressed in calories per square meter per 30 days 

 (from Wetzel 1975; Sorokin and Paveljeva 1972). 



7-28 



