Figure 20 



100,000 



STATION 



TOTAL NUMBER PER CUBIC METER OF ACARTIA CLAUSII 

 AND ACARTIA TONSA 



10,000 



O 



O 



I 



y 



U 



LU 



m 1,000 



CO 



Z) 



z 



•• 



NO A. CI^USII OBSERVED 

 AFTER 8 JULY 1971 



100 



APRIL, 1971 



MAY 



JUNE 



JULY 



AUGUST 



