diatom proportional count, the slide used for the count will be 

 deposited in the University of Montana Herbarium in Missoula. 

 The other slide will be retained by Hannaea in Helena. 



On completion of the project, station information, sample 

 information, and diatom proportional count data will be entered 

 into the Montana Diatom Database . 



RESULTS AND DISCUSSION 



Results are presented in Tables 4 and 5, which are located 

 near the end of this report following the Literature Cited 

 section. Spreadsheets containing completed diatom proportional 

 counts, with species' pollution tolerance classes (PTC) and 

 percent abundances, are attached as Appendix A. 



SAMPLE NOTES 



Station 1 (McLeod) . The Oscillatoria in this sample was 

 present both as individual filaments and as filaments intertwined 

 in mats of macroscopic size. 



Station 2 (Johnstone) . The Oscillatoria in this sample was 



the same species as the one at Station 1. Visually dominant 



diatoms in this sample were Gomphoneis spp., Cymbella af finis, 

 and Diatoma vulgare. 



NON- DIATOM ALGAE 



The samples from both sites contained a mix of diatoms, 

 cyanobacteria, and green algae (Table 4) . The cyanobacterium 

 Oscillatoria accounted for most of the biovolume at Station 1. 



