 And the zebra mussels are more difficult to detect in watercraft, lifts, and docks. Zebra mussels, the challenge is that it's usually not a zebra mussel that's an adult or even an infant stage zebra mussel that's getting transported. It's actually the veligers, which live in water. You couldn't see, you would not know if you're transporting it. That's in bait buckets, that's in village tanks, that's in live wells, that's in all the ballast tanks on wake boats.