TABLr or f.ONTrNT' 



List of Tables ii 



L ist of riquros i i i 



Introduction 1 



Description of Study Area 2 



Methods 6 



Resu 1 ts a 



Physical and Chemical Parameters 8 



Stream Habitat Analysis 10 



Hydrophytes 1<! 



Aquatic Invertebrates 12 



Fish 47 



Beaver Creek 47 



Species Composition and Distribution 47 



Walleye 52 



Sauqer 54 



Aqe nnd Growth 55 



Channel catfish 56 



Northern [)i ke 60 



Species diversity 60 



Species Interactions 62 



Beaver Creek Tributaries 62 



Little Beaver Creek 65 



Hay Creek 65 



Lame Steer Creek 65 



Lame Steer Lake 65 



Yellowstone River Tributaries 67 



Smith Creek 67 



Box Elder Creek 67 



Cotton Creek 67 



Glendive Creek 67 



Griffith Creek 68 



Hodqes Creek 68 



Kruq Creek 68 



Classification of Streams 73 



Discussion 75 



Literature Cited 78 



Appendix (Beaver Creek Drainaqe Samplinq Sites) 82 



Appendix II (Yellowstone Drainaqe Samplinq Sites) 85 



Appendix III (Stream Rating Procedures and Classification Sheets) 87 



Appendix IV 



