Results are presented in Tables 4 and 5, 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 



Tongue River below Squirrel Creek (TROD . This sample 

 consisted mostly of moss. Phormidium occurred as an epiphyte on 

 Cladophora . 



Tongue River above Prairie Dog Coulee (TR02) . Moss was 

 present in this sample, but it was not abundant. 



Tongue River at Brandenberg (TR03) . This sample was very 

 silty. Again, Phormidium grew as an epiphyte on Cladophora. 



Tongue River at Garland (TR04) . This sample was also very 

 silty. Phormidium and Chamaesiphon occurred as epiphytes, the 

 latter on Audouinella. 



Tongue River above TY Dam (TR05) . This sample was also very 

 silty. 



Tongue River at mouth (TR06) . This sample was silty. 

 Scenedesmus occurred mostly as short chains of 8 to 16 cells. 



NON- DIATOM ALGAE 



Eighteen genera of nondiatom algae were found in the Tongue 

 River, representing four major divisions: Green algae, euglenoid 



8 



