15 



10 



5 







AVERAGE DIVE DURATION HISTOGRAMS 

 PTT 823 



PERIODS 1-4 COMBINED 

 # PERIODS = 124 

 X=54 SD = 36 



0-60 



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



23:16-05:15 GMT (1) X=53 SD=35 N=39 

 ^^05:16-11:15 GMT (2) X=54 SD = 31 N=39 

 ^^11:16-17:15 GMT (3) X=62 SD = 45 N = 31 

 d] 17:16-23:15 GMT (4) X=43 SD=23 N=15 



i« 



8 



in 



_Ea_ 



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

 AVERAGE DIVE DURATION (SEC) 



Figure 56. Frequency histogram of average dive duration (seconds) during all 6-hour 

 summary periods for PTT #823. See note in Figure 55. 



91 



