"wampus" 



67 

 1000 



500- 



5 MIN. CONTROL 



-J 



99 



134 



124 



61 



III 



148 



65 



63 98 



9! 



69 



5 MIN. -80 LB. AIR/ 50 LB. WATER 



5 MIN. CONTROL 



5 MIN.- 60 LB. AIR / 50 LB. WATER 



Figure 23,- -Distribution of fish in pens, experiments 67-72. All experiments started with 100 fish in each 

 pen. In controls, gates between pens lifted for indicated period, then lowered. Tests same, except sounds 

 under indicated operating conditions applied for indicated time at indicated location. Numbers and dark bars 

 show distribution of fish after gates lowered. 



22 



