I- 

 cc 



£.30- 

 u. 



Ul 



5.20- 



I 



lU 



Q. .10 

 > 



z 

 o 

 I- 

 < o 



0> 



10 



0>- 



Figure 9. Rate of catch-per-unit-effort at 



Fishing Bridge plotted -against time 

 periods, 1951. 



tr 



O 



1.0- 

 .8- 

 .6- 

 .4- 

 .2- 

 0-- 



1950 



1951 



CATCH-PER-UNIT-EFFORT 



— T" 



20 



I I — 



10 20 

 JUNE 



30 



10 



I 

 20 



30 



JULY 



—I 1 — 



10 20 

 AUGUST 



I 

 30 



10 

 SEPT. 



(0 



u. 



u. 

 o 



o 



z 

 < 



o 



15- 



10- 



5- 



1950 



195 I 



—t — 

 30 



10 



— ?— 

 20 



-T — 



30 



-1— 

 10 



-T- 

 20 



— I — 

 30 



1 — 



10 



SEPT. 



— r 

 20 



10 20 

 JUNE 



JULY 



AUGUST 



Figure 10. Rate of catch-per-unit-effort and total catch by 

 two-week periods for Yellowstone Lake shoreline 

 fishery, 1950 and 19^1. 



20 



