[Osprey]

I totaly agree that's a real problem, people just don't understand the damage releasing non-native species in our waters causes. However I would be surprised if the goldfish really managed to destroy the bass population. Even if they do eat fish eggs that fact wouldn't affect the existing bass population. Also why wouldn't the bass eat the goldfish? I can't imagine they were the size of the specimine in your pic when they were realeased into the pond... Just some thoughts

 

[Osprey]

I was thinking about that goldfish in the picture, it's big. Meaning that it has probably survived a couple of Winters. Maybe you should let the DNR know about this problem and they can handle it? If those damned things spread to other waters it would trully suck! :evil:

 

[Osprey]

I don't want to beat the point to death or anything but I would hate to
see any of those bastard goldfish make it beyond that pond, ditch or whatever it is.
You could experiment with it by setting fish traps. See what lures the stinky critters in,
(I'll bet a half loaf of stale bread is just the ticket) if any sport fish get caught just throw them back.
The reason I mentioned the DNR is that they could apply rotenone to the body of water and wipee 'em all out!
After treatment the "ditch" could have potential as a bluegill pond.