636 



Fishery Bulletin 91(4). 1993 



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% Cov: 

 75 



35  

 30 • 

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 20 • 

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20 30 40 50 60 70 80 90 100 



40 



10 20 30 40 50 60 70 80 90 100 



Boats; 

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% Cov: 

 25 



~nl. 



P l~lm 



400 800 1200 1600 2000 2400 2800 3200 



35 

 30 



25  

 20 • 

 15 

 10  



5 







Boats. 

 20 



% Cov: 

 75 



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200 400 600 800 1000 1200 1400 



Figure 9 



Effect of percent coverage and fleet size on frequency distributions of annual mortality estimates 

 for common dolphins, from one set of 50 replicates. 



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20 30 



REPLICATE # 



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50 



Figure 10 



Effect of percent coverage and fleet size on analytic confidence intervals of replicate annual mortality 

 estimates for offshore spotted dolphins. Replicate estimates sorted by estimate level, from one set of 

 50 replicates. Note differences between panels in Y scale. 



