Well lets see, I used to be able to eat one Ohio river fish every 6 months, but now I think they may have changed that to one every two years. Mercury, PCBs and lead in Kentucky river fish, not real sure if I can eat my catch from there either.
Actually, you can eat more now than once was recomended. You can eat one meal a month of catfish out of the river or six in a year if they are over 21 inches. The reason for that is mercury, not lead fishing weights.