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The Silver Menace: Invasive
Asian Carp in the Midwest
Timothy Spier, Michael Flinn, Neal Jackson,
Jessica Morris, Allison Lebeda, and Brad Hartman
Murray State University
http://www.miseagrant.umich.edu/explore/native-and-invasive-species/species/fish-species-in-
michigan-and-the-great-lakes/asian-carp/silver-carp-no-background/
Outline
The Asian Carps
Carp biology
Status and Current Research
Introducing: The Asian Carps
4 species:
Silver Carp Hypophthalmichthys molitrix
Bighead Carp Hypophthalmichthys nobilis
Black Carp Mylopharyngodon piceus
Grass Carp Ctenopharyngodon idella
What are they not?
They are NOT
Common Carp
Cyprinus carpio
https://i.ytimg.com/vi/0MVBae24rNo/maxresdefault.jpg
Where are they
from?
http://cdn.thinglink.me/api/image/718674606201765889/1240/10/scaletowidth
Where are they
from?
Eastern China
Vietnam
Korea
Eastern Russia
http://cdn.thinglink.me/api/image/718674606201765889/1240/10/scaletowidth
Bighead Carp and Silver Carp
Brought over to use in polyculture
Bighead Carp and Silver Carp
Brought over to use in polyculture
Multiple species fish culture
Bigheads and Silvers improve water quality and provide a
secondary source of income
Escaped from culture ponds in Arkansas in early 1970’s
Bigheads and Silvers are
BIG!
https://www.nps.gov/miss/learn/nature/ascarpover.htmhttp://thelakenews.com/wp-
content/uploads/2015/05/Giant-Asian-Silver-Carp.jpg
Are they good sportfish?
Are they good sportfish?
Nah….
Some bowfishing, some snagging, but not much
Kentucky State Record
233 kg (106 lbs) but hooked
accidentally
http://thelakenews.com/wp-
content/uploads/2015/05/Giant-Asian-Silver-Carp.jpg
Are they good to eat?
Are they good to eat?
Absolutely!
Tasty flesh, high in Omega 3’s, low in contaminants
But a little bony…
Silver Carp are jumpers
Dangerous to
boaters, skiers,
jet skis, etc.
Illinoistimes.com
https://www.youtube.com/watch?v=GoLjf0TeoXk
Biology of Silver Carp
Large Size, Fast Growth
Become invulnerable to predation around age 1
Silver Carp Growth
Age (yrs)
Tota
l Length
(m
m)
2 4 6 8 10
0200
400
600
800
1000
1200
lt = 912 (1 – e-0.8849 (t – (0.6630)))
n = 173
Extremely Fecund
Up to 1,000,000
eggs per female
Age 0
Silver Carp
http://illinois.edu/lb/iList/518/2/skinId=10420
Feed low on the food web…
Bigheads = zooplankton and phytoplankton
Silvers = phytoplankton and zooplankton
How do they get so big when they eat
stuff that is so small?
How do they get so big when they eat
stuff that is so small?
They eat a lot! Maybe 20% of their body weight per day!
Typical Kentucky
Lake Food Web
blueplanetsociety.blogspot.com
http://ulrichhopp.de/bilder/kleinkrebse/Kleink_29_Leptodora_029.jpg
Scott Shupe
Scott Shupe
Typical Kentucky
Lake Food Web
blueplanetsociety.blogspot.com
http://ulrichhopp.de/bilder/kleinkrebse/Kleink_29_Leptodora_029.jpg
Scott Shupe
Scott Shupe
Short Circuiting the
Food Web
blueplanetsociety.blogspot.com
http://ulrichhopp.de/bilder/kleinkrebse/Kleink_29_Leptodora_029.jpg
Distribution
Knocking on the
door of the Great
Lakes
$7B fishing industry
USGS Silver Carp Distribution as of October 2016
Kentucky Lake as Surrogate for Great
Lakes
Kentucky Lake as Surrogate for Great
Lakes
Largest reservoir east of the Mississippi
Important commercial and recreational fisheries
Also recreational boating
Our Research at Murray State U.
Population demographics of the KY Lake population
Movement patterns of Silver Carp in KY Lake
Population Demographics
Silver Carp Growth
Age (yrs)
Tota
l Length
(m
m)
2 4 6 8 10
0200
400
600
800
1000
1200
lt = 912 (1 – e-0.8849 (t – (0.6630)))
n = 173
Tracking Silver Carp in Kentucky Lake
Surgery
Tags about size of a roll of dimes
http://voices.nationalgeographic.com/files/2015/07/Acoustic-tag1.jpg
VR2W Passive Receiver
Sits on bottom and listens
Where did they go?
Passive receivers
Fish Tracking Results
Hancock Biological Station
Silver Carp 51730
December 13-14, 2016
Silver Carp 51730
December 13-14, 2016
December 18-19, 2016
Silver Carp 51730
December 13-14, 2016
December 18-19, 2016
December 20, 2016
Silver Carp 51730
December 13-14, 2016
December 18-19, 2016
December 20, 2016
December 21, 2016
Silver Carp 51730
December 23, 2016
December 21, 2016
Silver Carp 51730
December 23, 2016
December 21, 2016
December 28-30, 2016
How do we stop them?
How do we stop them?
Stop expansion
Reduce numbers
Carp Barriers
Electric barrier system at Romeoville, IL
Bubble curtains
CO2
Sound barriers
Electric Barrier – Romeoville, IL
https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=&url=http%3A%2F%2Fprogressillinois.com%2Fquick-hits%2Fcontent%2F2012%2F01%2F09%2Fargument-chicago-waterway-changes-strengthened-study-findings&psig=AFQjCNEOwEHwdYIz-ZpI_KfSW8YBPH4bAg&ust=1476554358005012
http://archive.jsonline.com/news/statepolitics/asian-carp-fight-to-feature-new-
barrier-stepped-up-detection-b99714583z1-377340781.html
Carp Barriers
Electric barrier system at Romeoville, IL
Bubble curtains
CO2
Sound barriers
Being considered for other
areas, such as Pickwick
Dam on the Tennessee
River
Reducing Numbers
Reducing Numbers
Few options
Piscicides?
Predators?
Commercial harvest
Commercial Harvest
https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKE
wiz8qWWhNnPAhXBRyYKHWJBANQQjRwIBw&url=http%3A%2F%2Fwww.prairiestateoutdoors.com%2Fpso%2F
article_print%2F13087&psig=AFQjCNEE92zeHJYeLBD4GjZlctVjX66K1g&ust=1476490962700313
http://www.gannett-cdn.com/-mm-
/439421e44881cea8dc8e5f4c6a15eb5e5db9c2e5/c=0-264-2832-
1864&r=x329&c=580x326/local/-
/media/2015/02/04/Louisville/Louisville/635586676713404841-carp1.jpg
https://www.flickr.com/photos/acrcc/29983831432/
Asian Carp Regional Coordinating Committee
Acknowledgements
Field Help:Dalton Lebeda
Jessica Morris
Ronnie Hopkins
Brad Richardson
Clint
Nathan Ward
Ben Tumolo
Matt May
Alex Vaisvil
Christy Soldo
Nathan Tillotson
Josh Revell
Project Funding:Graduate Innovation AssistantshipHattie Mayme Ross ScholarshipLarry D. Pharris Memorial Wildlife Fund ScholarshipDr. Morgan Emory Sisk Jr. Memorial ScholarshipWatershed Studies Research Institute GrantsJesse D. Jones College of Science, Engineering and Technology Travel Grants
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