Well, we have a commodity in the world--it's called fish meal--that for decades, if not for over a century, has been available for agriculturists to access in making feed. It consists of small fish that are captured in the oceans of the world. Just to name a few, you have mackerel, sardines, and anchovy. These are wild-caught fish that are then turned into a meal, which is a ground-up product. That is then available for feed producers to make feed for swine or poultry or, in our case, our fish.
But it's not entirely that product; the feed is actually a mixture of vitamins, minerals, fish oil, and fish meal in the right components in order to meet nutritional requirements of salmon. Recently more and more we have been substituting fish meal and fish oil with other forms of oil--canola oil is a good one that is very useful--and other forms of protein, such as soy or poultry proteins, which can substitute for the fish. We're now down to where about 15% of the protein is now fish protein in our feed.