That's a good question. I'm not sure we can establish with certainty, from a scientific point of view, what type of watershed is most important. However, I can tell you a bit about our research.
As I mentioned last time, we have launched a project, funded by the Natural Sciences and Engineering Research Council of Canada, a federal agency, to collect samples from 650 lakes across Canada. That data helped us start answering that question.
As part of that sampling project, we studied all aspects of the water that we could study. One of the things we examined was the effect of the environment and the quality of the habitat on the zooplankton, these small planktic animals, first on the scale of bioregions—that is, regions defined by the type of forest and climate. We were able to explain a certain proportion of the makeup of these organism communities. We were pretty sure of what we were going to find in each type of lake.
Then we expanded our study to the continental watershed scale, taking into consideration the ocean into which the waters of a watershed flow in a given region. There are five or six continental watersheds in Canada, one of which is very small flowing into the Gulf of Mexico—