I don't know if the problem is just water pollution; according to NOAA aquaculture is 20-30% of shellfish production. In the U.S. at least the preference for ch

I don't know if the problem is just water pollution; according to NOAA aquaculture is 20-30% of shellfish production. In the U.S. at least the preference for chicken and beef has displaced our willingness to eat "critters" in most of the country. We've also got a marketing problem; quick frozen seafood is actually pretty good compared to seafood that's been lying in a display case for a week. (Also, it's less likely to give you worms if you undercook it) Any Asian market has a frozen seafood section that dwarfs any Midwest megasupermarket. Basically, Americans by-and-large have forgotten how to seafood.