I'd heard about these imported Asian Carp invading the Illinois River several years ago. If the US Army Corp of Engineers had not dug a canal to reverse the flow of the Illinois River, connecting the Mississippi River & Lake Michigan, then this would not be a threat. But... the invasive species, who have already taken over large parts of the Mississippi River, have now made it past an electrified barrier in the Illinois River, and will soon be taking over Lake Michigan.
If these were little fish, the invasion would be another sad testament of clueless men tampering with Nature (intentionally importing the asian carp to "clean" algae from ponds) and having no idea what secondary and tertiary effects that tinkering will have. But these are Big fish - 80 to 100 lbs. and they jump, at boats, traveling 10 to 15 mph out of the water. Ouch! Trout, perch, Coho, smelt... good luck with the new massive Asian competition who will crowd you out, gobble you up, and attack the fishermen who want to catch you.
Video links here, here, and here. (nice bow shot!)
EPA link here.
2005 population graph, here. (nice exponential growth)
1 year ago