Nancy Allen recently covered the effects of channel aeration in a Daily Standard article.  She writes:  


"Adding oxygen to dead-end channels on Grand Lake is improving water quality and spurring the return of aquatic critters not seen for decades.
Freshwater clams and gelatinous, blob-like animals called Bryozoa have been found in a Behm's Landing channel that added linear aeration.
Eugene Braig, a fisheries biologist at OSU Extension, said the presence of both creatures is a sign of improving water quality."