I have seen a couple of fishing shows from the UK where they are having serious carp fishing competitions lol. I have heard of a competition here but its just to try and pull as many out of the river in a day.... Probably hardly making a dent in the numbers though.
I grew up on a farm, and as a kid my weekend was spent catching Carp and killing them.
That sounds quite sadistic, doesn't it?
Anyway, it was a good cause.
I remember one winter, the old man drain our dam, and the shallows were literally just a bed if carp, trying to wriggle their way down into the mud. I slaughtered 50 odd carp, and left them up on the bank to rot.
The next day they were all gone.
In the months to come we noticed a spike in the fox population. ;)