(%) 



70 

 60 

 50 



40 

 30 



20 



I 

 



if - 10 

 a> 



a. 



£ -20 



c -30 



t -40- 



o 

 rsi 



o 

 a. 



c 



XX 

 XX 



Once - shocked 

 North Block 



10 



(F°) 



-50 



Difference m Degree of Water Temperature (F°) 



Figure 5. — Difference in percentage of squawfish that entered 

 the "positive" zone against the difference in water 

 temperature between times a combination was run. 



Figure 6. — Diagram of potential contours for sequenticilly pulsed field. 



12 



