If sockeye could live there then it makes a great sockeye lake. They are showing that thy can't survive, for a variety of reasons that are well known; too many competing species (rotenone the whole lake and start over??), Ship Canal too warm for adults, spawning streams too unstable, ocean conditions shifting in a bad way, too many competing pinks and chum in the N Pacific.

Cutthroat would be interesting. A "World Class" fishery would require extreme reductions in CT harvest in order to allow them to grow. They primarily use the small (heavily urbanized) creeks for spawning. Those gonna be restored?

Walleye can stay in the lake, so the Ship Canal and streamflows are not a big issue. They would eat a lot of the pike minnow, smelt, and such. They would also be available for a year-round fishery (15-20 minutes for sockeye given the effort levels). A problem would be eating them, especially the larger ones. They would also be wild, so the cost to produce goes down. I think walleye have shown that they can live and flourish in urban and suburban areas, as opposed to wild salmonids.