CPR lake recently underwent some work on the outflow dam last year. They drained the lake killing off all the older generations. I think they did some work again this fall which would have resulted in the lake being drained again. There was still tonnes of pencil pike there this summer and if they could survive last winter with less than a foot of water they should be able to survive again this year. Will take a few years for that lake to come back to what it was.