Thanks Rex. Yes, I was referring to our native freshwater mussels, I should have been more clear. I have zero tolerance for invasives, and can't even find it in myself to release common carp when I catch them. It is catch, and release........ into the woods. Or on occasion when I catch them in clean cool water, I make a meal out of them. Not half bad, but not near as tasty as grass carp. That is a fine tasting fish, though they are very difficult to clean. I am in no way defending zebra mussels
Native mussels are fascinating creatures. Check out this video of mussel reproduction.
http://other95.blogspot.com/2008/08/bivalve-vs-fish.html
