LIST OF FIGURES 

 Figure 



1. Map of the Yellowstone River drainage 5 



2. Median discharge of the Yellowstone Rive near Sidney, 1936- 

 1974 (U.S. Geological Survey flow duration hydrograph) 11 



3. Map of the lower Yellowstone River showing the four study 

 sections 14 



4 . Number of ripe male and mature female sauger captured per 

 kilometer while electrof ishing the lower Tongue River, 1976- 

 1980. Maximum one day sample size is in parentheses 

 21 



5. Number of sauger captured per kilometer while electrof ishing 

 the Powder River near its mouth, 1976-1980. The maximum 

 number of fish sampled on one day is in parentheses 22 



6. Number of sauger captured per kilometer while electrof ishing 

 the Yellowstone River near Miles City, 1976-1980. The maximum 

 number of fish sampled in one day is in parentheses 23 



7. Number of sauger captured per kilometer while electrof ishing 

 the Yellowstone River upstream from the mouth of the Powder 

 River, spring 1979 and 1980. The maximum number of fish 

 sampled in one day is in parentheses 24 



8. Number of sauger captured per kilometer while electrof ishing 

 the Yellowstone River downstream from the mouth of the Powder 

 River, spring 1979 and 1980. The maximum number of fish 

 sampled in one day is in parentheses 25 



9. Number of sauger captured per kilometer while electrof ishing 

 the Yellowstone River downstream from Forsyth diversion, 

 spring 1976-1980. The maximum number of fish sampled in one 

 day is in parentheses 26 



10. Number of sauger captured per kilometer while electrof ishing 

 the Yellowstone River downstream from Intake diversion, spring 

 1976-1980. The maximum number of fish collected in one day is 

 inparentheses 27 



11. Electrof ishing catch rates for mature sauger captured in 8 km 

 sections of the Yellowstone River from Miles City to North 

 Dakota, April 18-27, 1980 30 



iv 



