To be honest, Mel, that one's not really well documented in Canada. We have lots of information on water quality. I don't think it's actually as serious as many other factors. I'd be more concerned about the continued habitat loss in the Fraser estuary, for example.
Some work in Puget Sound under our Salish Sea marine survival program has clearly demonstrated that there are particular pollutants that do reduce the survival of chinook and coho salmon. There are programs and DFO is acting on this now. They are reinstating various programs about contaminants in the Strait of Georgia.
I don't know that we have great current information. The department is acting to improve it. I think it's something we'll have to deal with as we go forward. It's going to be an element of the component, but I don't think it's a major component right now.