I posted this over in the bass section; comments from others in the thread a worth a read...http://texasfishingforum.com/forums/ubbthreads.php/topics/12291056/Zebra_mussels#Post12291056
I've been dealing with 'em awhile. Learnt a thing or three...
Zebra mussels, like fire ants and many other living things, are a double edged sword and extremely invasive. On the one hand they are excellent filter feeders and will clean and clear a water body to nearly sterile condition. OTOH, when it gets too clean and there is nothing left to grow plankton and make food for the food web, the web collapses, especially at the top, that's where the fish we want to catch mostly are. Old Chinese Proverb, "A Water Too Clean Has No Fish!"
The dammed things do just that, make dams where you don't want them, in a manner of speaking. They attach to the inside of water lines and pipes to the point of clogging them up.
Interesting observations noted in the posts above, similar to what I've seen. I believe our saving grace with respect to the zebra mussel is that its just a tad too hot for them to do well here. I've seen them gain footholds again and again along the coast....um, er, heard about...at any rate they get introduced then disappear. Global Warming will save us for sure....
Of all the mussels and freshwater clams we got, only the zebra mussel attaches to stuff in the water column. Like trees, logs, boats, pilings, etc.
All these worries they got 'bout Asian Carps (bigheads and silvers) gettin' into the Great Lakes are unfounded in the context of the zebra mussel invasion. The water in the Great Lakes is far too clear and clean now to support the filter feeding carps or to provide the necessary nutrients for their self propagation.