I never saw one either, actually I only see them dead on the road. They are nocturnal. In florida the swat team practices shooting by popping them from a truck at night with sound suppressed 22s. They use spotlights and can see the reflective eyes. They do it inside city limits(reason for suppressors)
We couldn't find any traps and I suspect they are in the water right on the banks. The banks are yellow taped off in a couple spots where the traps must be. It's obvious they were worried about people's dogs getting in there and there are plenty of signs. You can still let your dog off the leash most of the way just have it with you...
I'm all for the trapping or even a bounty or contest of some sort but the signs and yellow tape are an eyesore. They could have found a better spot to do it. Around Weyerhauser for example.....they are always on the road dead there..
I'm also for a carp bowhunting tournament over at delta and for killing any smallies caught in the Umpqua....Why put a limit on invasives where natives are struggling? Why not keep the bass to lakes and ponds. My two cents....non-native and invasive are 2 different things, invasive species push out native ones and are too succesful. They should be cut back and there are plenty of us who'd have a bit of fun doing the deed for free!!!