I think I'm starting to understand why those damned carp are taking over the rivers. Last week I had one jump in the boat and cut him up for bait. But I accidentally got into the gut cavity, where I was amazed to find thousands of eggs -- apparently the asian carp don't just spawn once a year like most native fishes; if they're carrying eggs in the middle of September, it's reasonable to think they spawn all year around or at least as long as the water is in a certain temperature range. Many tropical fish kept in home aquariums are the same way -- if the conditions are right, they'll spawn every few weeks all year around. I've haven't done any research on the spawnnig habits of asian carp, so I'm just guessing based on my personal observation. There's no way for the native fish to compete against that, and I can't imagine there's anything we humans can do to slow or stop the spread of those things short of inventing some kind of genetic "poison" that stops them from reproducing. Kind of makes for a bleak outlook.