o 



w 



D 



w 



100 

 90 

 80 

 70 

 60 

 50 

 40 

 30 

 20 

 10 

 



AVERAGE DIVE DURATION HISTOGRAMS 

 PTT 827 



PERIODS 1-4 COMBINED 

 # PERIODS = 5 

 X=150 SD= 13 



0-60 



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





0^ 



50 

 45 

 40 

 35 

 30 



D 



O- 25 



w 



20 



15 



10 



5 







23;16-05:15 GMT (1) X=142 SD = N=l 

 0516-11:15 GMT (2) X=128 SD = N=l 

 11;16-17:15 GMT (3) X=160 SD = 6 N = 2 

 17:16-23:15 GMT (4) X=160 SD = N=l 



FID KH 



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

 AVERAGE DIVE DURATION (SEC) 



Figure 58. Frequency histogram of average dive duration (seconds) during all 6-hour 

 summary periods for PTT #827. See note in Figure 55. 



93 



