I agree, sounds like a good idea.
I used to work for a Newspaper in WV, and people caught Paddelfish out of the Ohio, but they were not too common. They had a bunch die because of a draught and lack of oxygen.
Strangely enough, I used to live in Louisville too at 22nd and Bank Streets, close to the river, just don't get caught fishing late at night in that area of town. Might not be safe, haha.
I live in Ontario now though..