Results and Discussion 



Results are presented in Tables 4, 5 and 6, which are located near the end of this report 

 following the references section. Copies of aquatic plant field sheets are included as Appendix 

 A. Appendix B contains a series of diatom reports, one for each sample. Each diatom report 

 contains an alphabetical list of diatom species in that sample and their percent abundances, and 

 values for 65 different diatom metrics and ecological attributes. 



Sample Notes 



Dearborn River near Bean Lake. The sample vial was packed with filamentous green 

 algae, which proved to be mostly Mougeotia sp. and Zygnema sp. 



Dearborn River below Highway 200. The sample vial was packed with Oscillatoria 

 sp., which formed tan masses that looked like Sphaerotilus (sewage fungus). Fragilaria and 

 Synedra spp. were the visually dominant diatoms in this sample. 



Middle Fork Dearborn River near Rogers Pass. This sample was very silty. 



Middle Fork Dearborn River below FAS 434. The sample firom this site was silty. 

 The Cladophora in this sample was senescent and covered with adnate fi-ustules of the diatom 

 Cocconeis pediculus. Fragilaria capucina was a visually common diatom in this sample. 



South Fork Dearborn River at Blacktail Ranch. This sample was silty. 



South Fork Dearborn River above FAS 434. The sample from this site was extremely 

 silty and contained moss. 



Non-Diatom Algae (Table 4) 



Each site supported a periphyton community composed of diatoms, green algae, and 

 cyanobacteria, and from 3 to 1 1 genera of non-diatom algae (Table 4). The yellow-green alga 



