No surprise. They've been there for years just not as prolific as they are in other areas. Me & Ricky C were fishing down from Sugar Bay on a Tue evening tournament and I stuck 1 with a crankbait. Took it back to the ramp and left it for Game Warden Sharon to see. He said they had no idea they were that far upstream. That was probably back in 2005 also. I'd suspect with all the high water they've migrated in numbers. Our Asian carp in FL are mudfish, gar, sturgeon fish. snakeheads.....Hate them too.
Holler at me if you ever get near.
F16