Aquatic Macroinvertebrate Data: PONDERA COULEE V^ mile from Marias River. July 20, 

 1995. 



% of sample used: 



79 



Subsample size 



258 



Taxa richness 



EPT richness 



Biotic index 



% Dominant taxon 



% EPT 



% Collectors (g+f) 



% Scrapers + Shredders 



% Hydropsychinae of Trich 



Metals tolerance index 



Shannon Diversity (log2) 



EPT/Chironomidae 



CTQa 



%Baetidae of Ephemeroptera 



('-V 



■-;' ■! 



18 

 1 



6.90 



69 



69 



91 



<l 



n.a. 

 3.53 

 2.04 

 3.58 

 106.11 







% Coleoptera 

 % Diptera 

 % Chironomidae 

 % Ephemeroptera 

 % Plecoptera 

 % Trichoptera 



% multivoltine 

 % univoltine 

 % semivoltine 





 3 

 19 

 69 

 

 



85 







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-11 



