s 



333.9538 



E30eos 



1999 



MONTANA STATE LIBRARY 



3 0864 1001 7626 5 



EFFECTS OF AN OIL SPILL ON 

 THE COMPOSITION AND STRUCTURE OF 



THE PERIPHYTON COMMUNITY IN 



CASINO CREEK AND BIG SPRING CREEK 



NEAR LEWIS TOWN, MONTANA 



\ 



Prepared for: 



State of Montana 

 Department of Environmental Quality- 

 Monitoring and Data Management Bureau 

 P.O. Box 2 00901 

 Helena, Montana 59620-0901 



Project Officer: 'Carol Endicott 

 DEQ Contract No. 200012 



Prepared by: 



Loren L. Bahls, Ph.D. 

 Hannaea 

 1032 Twelfth Avenue 

 Helena, Montana 59601 



November 1999 



JATE DOCUMENTS COLLECTION 



f R n 5 2003 



MONTANA STATE LIBRARY 



1515 E. 6th AVE. 

 HELENA, MONTANA 59620 



Printed on Recycled Paper 



