LIST OF nnuRrs 



Figure Page 



1 . na() of study area -3 



2. Map of Beaver Creek drainage showing study sections. (T) 

 indicates thermograph locations. Streams which were intermittent 

 and not included at^ shown by broken lines 4 



3. Map of Yellowstone River tributaries showing study sections. 

 Streams which were intermittent and not included are shown by 

 broken 1 ines 5 



4. Longitudinal profile of Beaver Creek 7 



5. Mean monthly flows for Beaver Creek near Wibaux, for period of 

 record ( 1 938-1 968 ) 9 



6. Daily mean water temperatures for sections 55 and 84, Beaver 

 Creek, 1977 13 



7. Daily mean water temperatures for section 1, Beaver Creek, 1978. 14 



8. Five-day mean-maximum and minimum water temperatures, section 54, 

 Beaver Creek, 1978 15 



9. Five-day mean-maximum and minimum water temperatures, section 84, 

 Beaver Creek, 1978 16 



10. Distribution of taxa at all sites in the Beaver Creek drainage.. 24 



11. Distribution of taxa at all sites in the Yellowstone drainage... 36 



12. rjumber of genera of the three major orders of aquatic invertebrates 

 found at each sampling site on Beaver Creek, 1977 45 



13. Distribution of fishes found in the Beaver Creek drainage, 1977.. 48 



14. Distribution of fishes in the Beaver Creek drainage, 1978 49 



15. Kite diagram showing distribution and relative abundance of major 

 fish species in Beaver Creek. Width of kite at each site is 

 proportional to the number of that species caught 50 



16. Length-freguencv distribution of creek chubs taken in Beaver 

 Creek, 1978 51 



17. Length-freguency distribution of sauger and v/alleye collected 

 spring, 1978, in Beaver Creek 53 



18. Number of sauger caught per sampling effort, Beaver Creek, 1978.. 55 



n 1 



