Thank you.
Dr. Leys, I don't know a whole lot about the sponge reefs, but from what I understand, they're quite deep in the water. Would you say that the activities on those reefs, now that we have bigger ships and can go farther, would hardly have been disturbed 100 to 150 years ago, and that the activities right now are probably what is harming them, if at all? How can we measure the damage that has been done? As you showed, those are very fragile pieces of nature. Do we know whether some have disappeared already?