That is also really important to keep in mind. The possibility of transmitting these to groundfish has already been mentioned, and that was quite an interesting discussion from Mr. MacDonald.
What we know in the Broughton, where one of my students has been studying this for the last few years, is that when coho salmon smolts eat infected pink salmon, the sea lice actually transfer to the coho salmon. What we have now been able to show is that the coho in the Broughton are also heavily infected by lice, even though they are considerably larger, and if you do the same sort of analysis that Dr. Krkosek did for pink salmon, you find the same signal in the populations of the coho salmon--that is, when fish farms began in the Broughton, coho populations began to decline; when they were fallowed, they bounced back up again. When the fallow ended, they declined again. You're getting exactly the same signal there, and there seem to be these consequences up the food chain for other species of fish.
The other way in which there can be broader effects is through reduced food availability for other species. If the wild salmon populations decline, you can expect a decline in populations of bears, dolphins, eagles, and other sea birds that feed on the fish. That will happen even in the forest, the riparian zones, where a lot of the nitrogen that feeds those riparian zones comes from the bodies of the salmon when they return and die in the fall. The ecosystem effects can be dramatic, and I don't think we spend enough time thinking about them.