One possibility that we just implemented for the Galapagos Marine Reserve is that you look at the fisheries around the marine reserve over time. What we see there is very interesting because it's a large protected area that has been protected for some time, about 17 years now. Fisheries around the area are doing better and better, but only around that area.
In the rest of the eastern tropical Pacific, they're not doing better. It's around that area that those areas do realize. By monitoring the fisheries—again through this tool I mentioned, automatic identification systems but also through on-board observers—you could document large benefits on tuna fisheries, which have now led to fishermen's associations supporting the reserve, rather than being against the reserve, as they initially were, because they see those benefits realized. We can document those benefits even without fishing inside the protected area.