I'll take the questions on closed containment, and I could also take brood stock, if you take the rest.
We at Marine Harvest believe that if you want to go to closed containment, you have to go land, and you have to go with recirculating aquaculture. That means that most of the water in your system recirculates time and time again. You'll only exchange something like 3% to 5% of new water in your whole system every day.
Why do you have to recirculate? These installations are extremely expensive. In order to sort of counteract the cost, you'll have to do two things. First, you have to grow at a much higher temperature--probably at the maximum temperature for salmon, which is 13 to 14 degrees--in order to get much more growth. Your fish will grow twice as fast at higher temperatures than they do today. That will reduce your cost.
At the same time, you have to increase density from the current 5 to 10 kilograms per cubic meter to at least 40 to 50 kilograms per cubic meter to be able to get a return on your investment. I believe the two studies that have been quoted before actually have these types of numbers in there.
Again on closed containment, we are concerned about the quality of product when growing in fresh water. Typically in recirculating systems, you get what is called an off-flavour problem. Some flavour builds up in the fish. You can get rid of it, but during the last four to six weeks you would have to flush your fish with sea water or other fresh water in order to get rid of that off-flavour. It's an issue. I personally believe there might be a solution, but there is a cost to everything.
As to brood stock, it's a different issue. We have three different lines of brood stock. We have a program to make sure there is no inbreeding, that we do not cross brothers and sisters and we do not cross families. We know that there is still more than enough genetic variability in our stocks to avoid inbreeding and we think we can go with that for many years.