Asian carp do not belong in Indiana’s beloved Wabash River.
Yet, the invasive fish are thriving in it, to the detriment of the river’s natural aquatic wildlife. The bighead and silver carp species devour the plankton and algae crucial to the native Wabash fish, threatening to break its centuries-old food chain. A generation ago, boaters often towed water skiers, skimming atop the Wabash for fun. Few people attempt skiing on it these days, lest they get hit by the leaping carp.
Their exploits make entertaining YouTube videos. Agitated by boat motors, the carp — which can measure 4 feet in length and 90 pounds in weight — pop up, often landing inside the watercraft, colliding with the pilot or passengers. After one or two encounters, though, the novelty of Asian carp wears off.
Nobody invited them into this river. The carp were imported to clear fisheries in the South, escaped into the Mississippi River valley in the 1980s and ’90s, and migrated north to the Wabash about a decade ago. The jumping, aggressive critters have made themselves at home here, starving out native fish.
Thus, we share the disappointment of Indiana Attorney General Greg Zoeller, who criticized a U.S. Army Corps of Engineers report on options for controlling Asian carp in the Great Lakes and Mississippi River basin. The study details possibilities for keeping the carp from entering the Great Lakes through Mississippi River tributaries. It provided no remedies for the already invaded Wabash.
The Army Corps responded to Zoeller’s complaints by pointing out Congress authorized the study, mandating it focus on the Great Lakes and the Mississippi. The study does explain preventive work done at Eagle Marsh, a Fort Wayne-area site where Wabash flooding could send Asian carp into the Maumee River, a Lake Erie tributary, Dave Wethington, an Army Corps project manager, told the Lafayette Journal & Courier.