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Tue August 6, 2013
Ohio Continues Fighting Spread Of Asian Carp
The Asian Carp continues to pose a threat to the Great Lakes, and experts continue working to end the threat.
Ohio Public Radio's Andy Chow reports.
Right now Asian carp are moving up river towards the Great Lakes. They were first brought here in the 70s to take care of the algae problem in southern catfish farms. But the invasive species broke out of those farms with the help of flooding and now pose a great ecological threat.
Why? Because Asian carp like to eat… a lot! They eat eggs… they eat plankton… they eat a number of things that the native fish need to survive. On top of that… they rapidly multiply… easily out-reproducing other species.
Doss: “And we’re just very concerned that if they were to get into the Great Lakes that they could damage the ecosystem and potentially decimate the native population of fish and all the economic benefits and other environmental benefits provided by those native fish populations.”
That’s Matt Doss with the Great Lakes Commission. The group collaborates with other organizations and states to secure and protect the Great Lakes.
It’s important to note that Asian carp has not been found in the Great Lakes yet. So the commission’s main tactic in their fight against Asian carp is to defend all pathways to the Great Lakes.
Doss: “By far the biggest and highest risk pathway for carp getting into the Great Lakes is the Chicago-area waterway system and this is an artificial connection between the Mississippi River watershed and the Great Lakes.”
If the Asian carp can infiltrate Lake Michigan through this waterway system then Doss says it is very likely the invasive species will spread to all the Great Lakes… including Lake Erie.
That’s why Doss says it’s vital to come up with a long-term solution to protecting this border… the plan… hydrologic separation.
Doss: “That is to permanently stop the free flow of water between the two watersheds to provide a permanent separation between those watersheds to keep these carp from getting into the Great Lakes.”
But the plan is controversial. The Chicago-area depends on the waterway system for a number of services… including water treatment. The commission is working to ease concerns. Doss says the commission has found a way to cut off the waterway without drastically impacting those services.
Plus… he says doing so is better than the alternative…
(NATS of flying fish)
That’s the sound of dozens of Asian carp flying out of the water and smacking into a boat. This happens because motors easily startle the fish.
Doss says jumpy fish isn’t just a nuisance but a serious safety concern. We’re talking about fish weighing between 20 to 40 pounds just catapulting out of the water.
Doss: “So you so this footage of just hundreds and hundreds of fish rapidly and violently jumping out of the water and in parts of the Mississippi and Illinois rivers—this is so common they jump into boats—they hit boaters who are moving down the waterway.”
There are reports that flying Asian carp have caused black eyes and broken jaws.
As of now… the Great Lakes Commission and several other public and private entities… including the state of Ohio… are continually evaluating the situation to determine the best way to protect their waterways from this invasive fish.