constant flows of nutrient-rich water with moderately high 

 conductivity. Free-living bluegreen algae (cyanobacteria) were 

 conspicuously absent here and at the next downstream station 

 (RW2-B) , although endophytic cyanobacteria may have been present 

 (see diatom disscussion) . 



Below Bluff Creek {RW2-B), diatoms were again dominant and 

 the number of soft algal genera increased from 3 to 8 (Table 4) , 

 perhaps indicating recovery from disturbances upstream. Diatoms 

 continued as the most abundant algae at sites downstream. An 

 abundance of filamentous green algae indicated moderate nutrient 

 enrichment here. 



The site a±>ove Pasture Creek (RW3-A) supported the largest 

 number of non-diatom algal genera (11) of any study site. Free- 

 living bluegreen algae returned', along with occasional euglenoid 

 algae. These euglenoid algae and an abundance of Rhizoclonium 

 and the cyanobacterium Oscillatoria indicate moderate nutrient 

 enrichment and some (internal?) organic loading. 



Genus richness remained high at Highway 2 01 (RW3-F) with 9 

 genera of soft algae recorded. Rhizoclonium remained abundant 

 and Stigeoclonium was common, indicating moderate nutrient 

 enrichment. Free-living cyanobacteria were represented by 5 

 genera, the most recorded at any site. 



Genus richness declined to 4 at Nickwall Crossing (RW3-D) . 

 The coenocytic chrysophyte Vaucheria appeared here for the first 

 time. This alga is common on moist soil and in springs and seeps 

 in the spring of the year. Rhizoclonium continued to be abundant 

 here, indicating moderate nutrient enrichment. 



East Redwater River 



The East Redwater supported a mix of diatoms, green and 



10 



