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Squirrel Creek at culvert (#3) . This sample consisted 

 mostly of macrophytes and was beginning to decompose. 



Squirrel Creek near mouth (#1) . This sample contained 

 macrophytes . Diatoms occurred mostly as epiphytes on other 

 algae . 



Squirrel Creek near mouth (#1, duplicate) . This sample 

 contained mostly macrophytes. Diatoms occurred mostly as 

 epiphytes on other algae. 



NON- DIATOM ALGAE 



The siphonaceous chrysophyte Vaucheria was prominent in all 

 oZ the samples (Table 4) . This attached filamentous alga forms 

 dark-green velvety mats on damp soil and in springs, seeps, and 

 slow-moving streams (Prescott 1978) . It needs a constant supply 

 of moisture and thrives only where flows are perennial. It is 

 generally considered to be an indicator of good quality water, 

 although the genus also has marine representatives (Palmer 1977) . 



Vaucheria and four genera of filamentous green algae were 

 the only non-diatom algae present at the upper site (#4) . The 

 common non- diatom genera here (Hormidiim and Oedogonium) , along 

 with the absence of cyanobacteria, may indicate moderate nitrogen 

 enrichment in upper Squirrel Creek. 



Vaucheria and diatoms dominated the algal flora at the 

 middle site at the culvert (Table 4) . This site (#3) had the 

 fewest genera of non-diatom algae (3) of all the Squirrel Creek 

 sites, and was probably subject to the greatest amount of stress. 



The filamentous green alga Cladophora and the filamentous 

 red alga Audouinella appeared only at the mouth of Squirrel 

 Creek, where they were very common to abundant (Table 4) . 

 Although Cladophora often becomes a nuisance, an abundance of 

 Cladophora and Audouinella typically indicates cool, flowing, and 



