LITERATURE CITED 



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

 Wastewater. 20th Edition. American Public Health 

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

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



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

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 Environmental Sciences, Helena. 



Bahls, L.L. 1998. Biotic Integrity of Upper Tenmile Creek Based 

 on Periphyton Community Structure and Composition. Prepared 

 for the Lewis and Clark County Water Quality Protection 

 District, Helena, Montana. 



Bahls, L.L. 2001. Support of Aquatic Life Uses in Selected 



Tributaries of the Big Hole River Based on the Composition 

 and Structure of the Benthic Algae Community. Prepared for 

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



Biology of Montana Reference Streams . Montana Department of 

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Bahls, L.L., and E.E. Weber. 1988. Ecology and distribution in 

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 diatom. Proc. Mont. Acad. Sci. 48:15-20. 



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



1999. Rapid Bioassessment Protocols for Use in Streams and 

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

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

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

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

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



Krammer, K., and H. Lange-Bertalot . 1986. Bacillariophyceae, 

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