N
n8r1
There are all sorts of fish that most don't know about in Oregon waters which obviously don't belong, I would be willing to bet money there are Goldfish and Koi in the Willamette, the Columbia without a doubt, I believe Vancouver Lake (Washington) dumps right into the Columbia, and Vancouver Lake is full of Goldfish according to Wikipedia.
I would bet there are some crazy fish in the Willy, like aquarium fish that possibly outgrew their tank because the owner thought it would be a baby forever.
Thats insane for a Pleco, I had plecostamus in mind when I said aquarium fish, I seen one in Wirth.
gungas, Pirhana's are not actually illegal in the state of oregon, There are 3 species allowed to be kept in the home aquarium. Red belly, Black and i cannot recall the 3rd species.