If you're in New York City you might eat caviar from fish caught in the Ohio River. I don't know of anyone here around Mile 308 who does, though. Details in this article in The Ledger-Independent of Maysville, Ky., about commercial fishing for paddlefish.
Back in 1985, I think it was, I did a story for the Huntington newspaper about commercial fishing in the Ohio River, but that was in summer. One fisherman took me out in his boat to check his hoop nets for fish, and he enjoyed the look on my face when I smelled a rotting carp that came up in one net.