
Invasive carp threatens Great Lakes
Fish and wildlife officials will poison a 6-mile stretch of water near Chicago on Wednesday in a last-ditch effort to keep one of the most dangerous invasive species of fish, the Asian carp, out of the Great Lakes. The Asian carp, a voracious eater that has no predators and negligible worth as a commercial or sport fish, now dominates the Mississippi and Illinois rivers and their tributaries. The fish has entered the Chicago Sanitary and Ship Canal - a man-made link between the Mississippi River system and the Great Lakes - and is knocking on the door of Lake Michigan. Ref. Source 5