u 



w 



D 



Of 



w 



50 



45 

 40 

 35 

 30 

 25 

 20 

 15 

 10 

 5 

 



AVERAGE DIVE DURATION HISTOGRAMS 

 PTT 825 



PERIODS 1-4 COMBINED 

 # PERIODS = 7 

 X=100 SD=33 



0-60 



61-120 121-180 181-240 241-300 301-360 



50 



45 



40 



^ 35 

 o 



g 30 



D 



o- 25 



u. 20 



15 



10 



5 







23:16-05:15 GMT (1) X=97 SD=46 N = 3 

 05:16-11:15 GMT (2) X=128 SD = N=l 

 11:16-17:15 GMT (3) X=93 SD = 7 N = 3 

 17:16-23:15 GMT (4) X= SD= N = 



_KL. 



f^g 



0-60 61-120 121-180 181-240 241-300 301-360 

 AVERAGE DIVE DURATION (SEC) 



Figure 57. Frequency histogram of average dive duration (seconds) during ail 6-hour 

 summary periods for PTF #825. See note in Figure 55. 



92 



