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Invasion of the Asian Carp

By Ross
Swanson


Introduction
• The Great Lakes are not new to
invasive species.
• Zebra muscles, Sea Lamprey, Round
Goby Etc.
• The Asian Carp is trailing right behind!


Asian
Carp
Key Points
• Anatomy of an Asian Carp
• How Did This Invasion
Begin
• Threat to the Great Lakes
• What is Being Done Today


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Anatomy of Asian
Carp

Bighead Carp

Gray with black blotches
Eyes sit low on the facial region
Contain no teeth
Feed HEAVY on plankton
organisms
• Grow up to 4ft in length
• Rapid reproduction (2.2
million eggs)
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Anatomy of Asian
Carp

Silver Carp

Silver in color
Red on tips of their fins
Eyes sit low on facial region
Contain no teeth
Feed HEAVY on plankton organisms
Tend to be slightly smaller than the Bighead

Carp
• Rapid reproduction
• Jump out of water when disturbed
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How Did This Invasion
Begin?

• Asian Carp were introduced to the U.S in
the 1970s
• Used as a management tool for aqua
culture farms and sewage treatment
facilities.
• Do to major flooding, Asian Carp escaped
their holding areas and into tributaries of
the Mississippi River.


How Did This Invasion Begin?
Cont.
• Reproduced rapidly
• Began to decimate southern ecosystem's due
to heavy feeding tendencies.
• Have migrated north up the Mississippi River into

the connecting Illinois River.
• Direct route to Lake Michigan



The
Threat

Asian Carp pose a great danger to Lake
Michigan and the remaining Great Lakes.
• Severe disruption of the food chain.
• 7 Billion dollar recreation industry at stake.
• Silver Carp can be harmful to human.


What is Being Done to Stop
Them
2002-2011
• U.S Army Corps of Engineers constructed 3
electrical barriers on the Chicago ship canal.

2010-2011
• Launch of studies go underway in search for a
more permanent solution.


What is Being Done to Stop
Them
2014
• U.S Army Corps of Engineers released their “Great Lakes

and Mississippi River Interbasin Study” (GLMRIS)
• Contains plans to block Asian Carp by 2 alternatives
of hydrologic separation or either physical barriers.
• DNR of Illinois and Indiana net and kill as many as Asian
Carp possible.


Key Points
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Conclusio
n

Anatomy of Asian Carp
How the Invasion Started
The Threat to the Great Lakes
What is Being Done to Stop
Them