5000 



1000 



500 



100 



E 50 



in 



E 

 <n 



'c 

 nj 



CO 

 Z 

 UJ 

 Q 10 



5 



V Baetinae 



■ Ephemefella 



mk Simuliidae 



Shaded - Upstream Area 



Half- Shaded - Upper Mined Area 



Open — Between Mined Area 



July 



August 



Figure 60. Densities of selected aquatic macroi nver tebrates at Aufeis Creek 

 study areas during 1977 sampling trips. 



206 



