The title of this thread made me miss a heart beat! too Cruel :facepalm:
I always wondered in reply to the isolated populations becoming disappearing was to blame in trout pheromones. whether like an Inanga who will follow any other Galaxid smell upstream, the trout pheromones were more attractive than their own, thus (assuming their was some decent movement in their marine phase) 'leading the lams to slaughter'.
I'm with you on getting some auzy ones over here too, makes more sense than good old grass carp, though I guess hard with such limited populations over there...
Will be cool to see them in your book!