
HAVE YOU EVER NOTICED THAT EVERY TIME HUMAMMALS FIX THINGS THEY GET MORE BROKEN?
The history of the Asian Carp is similar to the history of kudzu. The giant freshwater monster species was originally imported into the South to consume algae on catfish farms. In the 1990's flooding provided a route into the Mississippi River basin for the cagey fish.
For decades, silver and bighead carp have been migrating up the Mississippi and Illinois Rivers toward the Great Lakes. Nature provides no natural waterway between the systems, but man did. The Chicago River, which used to flow into Lake Michigan, now flows in reverse, courtesy of the Army Corps of Engineers. The Mississippi-Illinous systems is now connected to the Great Lakes through a series of canals and locks, which also provide an important navigable waterway.
Two elecric barriers have been constructed to prevent the migration, but the Carp have breached this last line of defense.
Once the Carp arrive in Lake Michigan, they will have to compete with other invasive species that have been screwing up the in the five decades since the St. Lawrence Seaway was completed. At that time nobody was worried about European lampreys, zebra mussels, alewives and round gobies, which were deposited in the Lakes via the ballast water of ocean-going vessels.
It's only taken us a few decades to screw up a 12,000 year old watershed.