I think, in our case, no, because sea lamprey cannot jump. If you use a low-head barrier they cannot get past it, so that's very effective.
The third is trapping spawning sea lamprey.
But the point I want to make is that we had another technique that we used for about 12 or 14 years, and that was a sterile male technique where we collected usually around 30,000 males from throughout the Great Lakes basin. We would sterilize them in a facility in Michigan at Hammond Bay, which is right up here on Lake Huron, and then we would transport those sterilized males to the St. Mary's River where we would release them. We know for a fact—we did all sorts of scientific research—that these sterile males were competing effectively with fertile males, and when they did that they took the spawn from the females and the spawn died.
But what we did was we really investigated the effectiveness of that program, and what we found was that this program was just not a cost-effective program, and the commissioners made the decision this year that because it was not cost-effective we were going to discontinue that program and put the resources into trapping.