That's certainly a consideration. In fact, just to enlarge on that, when Pacific salmon enter marine water, they then migrate thousands of kilometres to the north Pacific Ocean. In that process, they feed and grow, and then they return. If ocean temperatures are increasing, Pacific salmon will try to avoid those warm temperature conditions, so they will migrate farther. They have to be able to consume more to return to fresh water and the mouth of the Fraser River. So that's a problem. They only have so much fat reserves. Once they're exhausted, those fish can't spawn. That's the one issue.
The second issue is that when they move into the Fraser River, they experience extraordinarily high temperatures. We had conditions this year of 21 degrees celsius--23 degrees is lethal. When they enter into 21 degree waters, they're stressed. If they stay any length of time in 21 degrees, they accumulate impacts they cannot recover from.
We have to look in a forward-looking way when we manage the Pacific salmon, particularly these southerly located populations. That really brings into question how we manage, and what kinds of buffers we put in and so forth, because of these environmental circumstances.