We monitor the effectiveness of every treatment of this SLICE product every time it's used. That's the first way of knowing whether or not we're seeing any indication of resistance. We haven't seen a decline in the effectiveness of the SLICE product. The second way is through a laboratory bioassay. It can be conducted on the sea lice themselves to see if they're becoming resistant. That is new technology on the west coast that has not yet produced any results.
The efficacy is still very high, but as Ruth mentioned, in a good integrated pest management program in any kind of agriculture, you need to rotate the product so that resistance doesn't build up. That's why I mentioned earlier that having additional products to use is something we could use more support for on the west coast.