I am not a fish bioligist or geneticist. While, yes there are Kokanee and resident land locked Chinook in lakes, if the lakes were all of the sudden connected to the ocean again, are you saying that these fish would still retain the urge to continue their anadromous lifecycle??

I certainly agree that the genes are probably there but how do you revitalize that population given 75 years plus of nature selecting for fish survival in landlocked environment?