o > 100 



LL Z - 



o2> 



H H h- 



2 < o 60 



uj I— < 



(J CO ^ 



rr UJ •* 



011 LL UJ 



UJ _ _| 



°-Zu. 20 



< UJ 



5 oc 



8 



PHENOL 

 I— ADDED < 



to 







O 20 



o 

 tr. 



UJ 



H 9i 1 ° 



X/" 



./ »-, 





PHENOL 

 REMOVED 



J I L 



v S r \ rv t 



j i i i i i i 



V 



_L 



J L 



■r**»* 



J I I I I I I l_l I I r i i 





J l I I I I I i i i i 



UNTREA TED CONTROLS 



POPULA TION TREA TED WITH 6 MG/L PHENOL 



'*+ A h A h 



I I I I I L 



J L 



60 80 



TIME, days 



100 



120 



140 



Figure 1. Changes in the conditioned reflex activity in the 



common guppy {Lo.bu>toJ> HQjtlcuJLatuA) under the influence of 



sublethal concentrations of phenol. 



124 



