wwwo wwwoooooowxxxxxxx i 



BEFORE 10-1-77 

 (15 min) 



SINCE 10-1-77 

 (0.69 km) 



Figure 2. Frequency distribution of catch of P. americanus 



3EF0RE 10-1-77 

 (15 min) 



SINCE 10-1-77 

 (0.69 km) 



k ^^s<vvvvv«v»v»vxvwwwwbfl 



Figure 3. Frequency distribution of catch of S. chrysops 



BEFORE 10-1-77 

 (15 min) 



SINCE 10-1-77 

 (0.69 km) 



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rftCQucacY 



Figure 4. Frequency distribution of tow duration in minutes 



19 



