The MO Dept of Health has released their 2013 Fish Advisory. In the Missouri River the species that have advisories are Shovelnose Sturgeon, catfish and carp. It's recommended you only have one meal a week of those fish. There is also and advisory not to eat sturgeon eggs at all. This is due to PCBs, Chlordane and Mercury. No mention of Dioxin at all. Exposure can be reduced by carefully removing any obvious fatty tissue from the fillets. The full advisory is available here: http://health.mo.gov/living/environm...shadvisory.pdf