I don't know, but I don't think there's an analogous situation in Canada to the Great Lakes and their issues. So I don't know; I can't cite a jurisdiction that takes a more holistic view. I think it's more commonly done in Europe. The Europeans are very aware that the fish stock is interrelated with the water quality and that approach to managing water quality through the fish stock is mostly developed in Europe, and they're very expert at it.
In response to your second question about the fish actually starving, I think in the Great Lakes for a long time salmon were stocked in terms of as many as they could produce in the hatcheries. First of all, in Lake Michigan they actually stocked so many that the prey fish ran out, the salmon started to starve, and the lake changed dramatically in other aspects of its species composition. It happened there first and then it happened in Lake Ontario. Most recently, it's happening in Lake Huron. The condition of the salmon actually falls off. Twenty years ago you could catch a 40-pound salmon in Lake Huron or Lake Ontario. Now you could win a fishing contest with a 20 pounder.
The fish are exceeding the carrying capacity of the environment and yet at the same time nobody is....