You might be able to get reproduction with addition of a paddle wheel and addition of a spawning site. Keeping bluegill and other sunfish would also help.

What species are you talking about? Lake Chub Sucker or one of the more strongly stream associated species? I have chub suckers breeding in a quarry with sunfish for nearly 8 years now and young fish still evident.


Aquaculture
Cooperative Research / Extension
Lincoln University of Missouri