To answer the first part of your question on any impediments to the development of the larger examples, I'm thinking that by this you mean the current net-pen facilities and their growth on both coasts. The impediments are largely regulatory at this point in time. We're waiting in British Columbia to be able to submit new applications for locations that are considered to be appropriate and sustainable, with plans to demonstrate that these intended facilities would be sustainable in those locations.
Also, we've covered fairly well here today the type of activity that is of interest in the closed systems, which are less consistent in terms of their designs. The ones I mentioned early on would probably each be working with a different firm and a different technology supplier, so there would be variations from one to the other.
I didn't mention the amount of technology and effort that go into cleaning the water, but I will say that if you have tanks of fish on one side of the building in a recirculating aquaculture facility, then you have a wall, and on the other side you have the water treatment, which is equally as large and would look like a water treatment facility of a municipality, for example. A lot of energy goes into taking out the solids, into taking out the CO2 and the nitrogen, and reinstituting the oxygen, and cleaning the water so that it can be put back in again. This part of the water treatment is where very much of the debate occurs around the specific type of technology that you're going to choose.