The asian carp are tasty, but they're a serious nuisance to prepare for cooking, so I usually just bury them in my victory garden. They make great fertilizer.
Missouri Dept of Conservation has some good tips on how to prepare rough fish here:
I am a prairie guy but married a gal from the Ozarks. I think her dad is the all time gigging master. We have caught, scaled, scored, cooked and eaten many suckers through the years. Yes, when they are pressured and canned the bones are softened and dissolved. We typically fry up patties, but father in law would open a jar and put the meat on a cracker. There is the Sucker Day in Nixa, MO. in mid May.