Report No. 3 The Effect of Altered Streamflow on Fish of the 

 Yellowstone and Tongue Rivers, Montana. 



Report iJo. 9 The Effect of Altered Streamflow on Existing Municipal 

 and Agricultural Users of the Yellowstone River Basin, 

 Montana. 



Report No. 10 The Effect of Altered Streamflow on Mater-Based Recreation 

 in the Yellowstone River Basin, Montana. 



Report No. 11 The Economics of Altered Streamflow in the Yellowstone 

 River Basin, Montana. 



ACKNOWLEDGMENTS 



The author would like to thank all biologists and friends who contributed 

 time, effort, and specimens for this study. He would also like to thank the 

 Intake Water Company and the Old West Regional Commission for contributing 

 research funds. 



The author also thanks the following experts who helped identify organisms: 

 Trichoptera (D.G. Denning) ;Plecoptera (R.W. Bauman, B. Stark); Coleoptera- 

 Elmidae (H.P. Brown); Diptera-Chironomidae (L. Curry); Oligochaeta and Mollusca 

 (D. Klemm); Odonata and Hemiptera (G. Roemhild). 



A special thanks is given to R. Berg, D. Workman, and D. Schwehr of the 

 Montana Department of Fish and Game for taking bottom samples on the middle and 

 upper Yellowstone River and to A. Elser and R. McFarland for taking samples on 

 the Tongue River. Mr. Burwell Gooch of the Systems Development Bureau, Data 

 Processing Division, Montana State Department of Administration was very helpful 

 in constructing computer programs for species diversity analyses and regression 

 analysis . 



Carole Massman, Jim Bond, and Pam Tennis of the Montana Department of 

 Natural Resources and Conservation provided editorial assistance. Graphics 

 were coordinated and performed by Gary Wolf, with the assistance of June Virag 

 and Dan Nelson and of D. C. Howard, who also designed and executed the cover. 



