8 iB ASUS UB; O NegB Uri eerie 
A Biologist’s View of Stream 
Alterations © Channelization 
‘Action on a broad front is mandatory now if we 
are to salvage what's left of our stream and 
river environments.’ 
by MIKE CONLIN 
Mike Conlin is a fishery biologist with the Illinois Depart- 
ment of Conservation. He lives in Macomb. His article 
reflects his own views and not necessarily those of the 
Department. 
