Alaska Ocean Ranching - Pink Problem

Apparently, Alaska's ocean ranching of a billion pink salmon fry each spring has more effect than simply changing the wild pink genetics in Prince William Sound.

As hard as it may be to believe, this article says they have been found as far south as the Columbia River in Oregon: http://www.alaskadispatch.com/article/are-prince-william-sound-salmon-hatcheries-curse-or-blessing.

Here is the article on Alaska pinks showing up at Bonneville Dam on the Columbia: http://www.cbbulletin.com/412244.aspx.

This article suggests the strays are from Puget Sound or the Fraser, rather than Alaska, but if from Alaska that implies that Alaska pink salmon could stray to every salmon-bearing river on the Pacific coast of North America - a very bad thing.