Fisheries committee  Almost all of them do, not electrical barriers but physical barriers of types. The U.S. Army Corps of Engineers considered that when it was assessing the risk of these different barriers.

Fisheries committee  I think they are taking various approaches. I was actually on one of their boats this summer. They were trying to fish down the invasion front. We were setting nets in the Illinois River, right at the upper end of the Illinois where the fish are found. Within an hour we caught tw

Fisheries committee  The U.S. Geological Survey is continuing to work on those toxicants that would be species specific. Asian carp feed by filter feeding. They're large fish; they can get up to 50 kilograms. They swim through the water column with their mouth open or they sip at the surface and filt

Fisheries committee  Because the Mississippi is so long, we've seen this invasion front moving further north for the last 20 years. You see that upward trend because you are constantly at this invasion front. Further south, they do see some levelling off but still at very high levels of biomass of A

Fisheries committee  The study is being released in phases. I think they've been mandated by the U.S. government to move the deadline forward, so we'd expect that relatively soon.

Fisheries committee  I really can't comment on his view in the sense that he is entitled to his own view. He is familiar with our documents. He reviewed our documents. Our documents were reviewed by essentially 25 Hugh MacIssacs. I think what he was providing was simply his personal opinion. What w

Fisheries committee  Yes. The U.S. Army Corps of Engineers is doing a risk assessment of all the physical connections between the Mississippi River and Great Lakes basin. It's a risk assessment that is a little different from what we undertook, because it is specifically looking at the risk of organi

Fisheries committee  There is a call in the annex for binational coordination of risk assessment. What we did with Asian carp fits squarely in that call.

Fisheries committee  That's what happened, because you would have to continue spending that money to maintain the control, as we do successfully with sea lamprey. Once the sea lamprey came in, we established a control program. We do a very good job of controlling it but have found that it's almost im

Fisheries committee  Thank you for the question. I really think that, again, prevention is key. Part of prevention is that we know that the Asian carp, for example, are in the Mississippi Basin right now. How do we prevent them from getting into the Great Lakes? We know that our American colleagues

Fisheries committee  The U.S. Army Corps of Engineers is leading the study to look at the effectiveness of the barrier, and it appears to be quite effective.

Fisheries committee  They don't. That is a good question. Keep in mind that in their native range they have evolved with the entire fish community over a very long time, over hundreds of thousands of years, depending on where they are found. I've collected them within their native range in eastern R

Fisheries committee  Not yet.

Fisheries committee  That is part of the invasion theory—you have this initial spike and then you have a levelling off. That initial spike, though, could have such a catastrophic impact on the Great Lakes that even if the numbers came down again the lakes might not go back to their previous state.

Fisheries committee  Yes.