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LITERATURE CITED 



APHA. 1998. Standard Methods for the Examination of Water and 

 Wastewater. 20th Edition. American Public Health 

 Association, Washington, D.C. 



Bahls, L.L. 1979. Benthic diatom diversity as a measure of 

 water quality. Proc . Mont. Acad. Sci . 38:1-6. 



Bahls, L.L. 1980. Salinity and The Structure of Benthic Algae 

 (Periphyton) Communities in Streams of the Southern Fort 

 Union Region, Montana. Environmental Sciences Division, 

 Montana Department of Health and Environmental Sciences, 

 Helena . 



Bahls, L.L. 1993. Periphyton Bioassessment Methods for Montana 

 Streams (Revised) . Montana Department of Health and 

 Environmental Sciences, Helena. 



Bahls, L.L., Bob Bukantis, and Steve Tralles. 1992. Benchmark 



Biology of Montana Reference Streams . Montana Department of 

 Health and Environmental Sciences, Helena. 



Bahls, L.L., E.E. Weber, and J. 0. Jarvie. 1984. Ecology and 

 Distribution of Major Diatom Ecotypes in the Southern Fort 

 Union Coal Region of Montana. U.S. Geological Survey 

 Professional Paper 1289, U.S. Government Printing Office, 

 Washington. 



Barbour, M.T., J. Gerritsen, B.D. Snyder, and J.B. Stribling. 



1999. Rapid Bioassessment Protocols for Use in Streams and 

 Wadeable Rivers: Periphyton, Benthic Macroinvertebrates and 

 Fish. Second Edition. EPA/841-B-99-002 . U.S. EPA, Office 

 of Water, Washington, D.C. 



Dillard, G.E. 1999. Common Freshwater Algae of the United 

 States. J. Cramer, Berlin. 



Johansen, J.R. 1999. Diatoms of Aerial Habitats. Chapter 12 in 

 Stoermer, E.F., and J. P. Smol (eds.). The Diatoms, Cambridge 

 University Press, New York. 



Karr, J.R., and D.R. Dudley. 1981. Ecological perspectives on 

 water quality goals. Environmental Management 5:55-69. 



Klarich, D.A., and S.M. Regele. 1980. Structure, General 

 Characteristics, and Salinity Relationships of Benthic 

 Macroinvertebrate Associations in Streams Draining the 

 Southern Fort Union Coalfield Region of Southeastern 

 Montana. Environmental Sciences Division, Montana 

 Department of Health and Environmental Sciences, Billings. 



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