Aquatic Macroinvertebrate Data: PONDERA COULEE south of Cheek's bridge. July 20, 



1995 



% of sample used: 10 



Subsample size 238 



Taxa richness .; 21 



EPT richness ■ ' -- ' '6 



Biotic index 6.26 



% Dominant taxon " ' ' 22 



%EPT ; ' 14 



% Collectors (g+0 i ■ 93 



% Scrapers + Shredders * 1 



%HydropsychinaeofTrich 55 



Metals tolerance index 5.43 



Shannon Diversity (log2) , 3.56 



EPT/Chironomidae 22 



CTQa 106.43 



%BaetidaeofEphemeroptera ; 



% Coleoptera , 



% Diptera 17 



% Chironomidae 65 



% Ephemeroptera ' ' 6 



% Plecoptera 



% Trichoptera 8 



% multivoltine 53 



% univoltine . f- . ^g 



% semivoltine 1 



Functional Feeding Grp. %RA # taxa 



Filterers 



Collector-Gatherers 



Shredders 



Scrapers 



Predators 



Est. total number of organisms 

 Est. number collected per foot 

 Est. number collected per minute 



A-9 



