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The negative effects of invasive carp to the Nation’s waterways are far reaching and have potential to expand and intensify. USGS is delivering data, tools and technologies to partners to keep these invasive fish out of the Great Lakes and other aquatic ecosystems and control them where they occur in the Ohio River and Mississippi River Basins.
Underwater sound technology is being field tested as a tool for herding and deterring Bighead carp, and is being used in combination with fish netting activities to maximize control efforts. Carbon dioxide (CO2) is an effective deterrent of invasive carp and USGS is currently working with partners to field test methods for elevating CO2 levels in water to deter invasive carp range expansion. USGS also has extensive capabilities in invasive carp biology and life history research that have led to development of models, tools and strategies to better understand the risk of invasive carp establishment and survival. One risk assessment tool is the Fluvial Egg Drift Simulator that incorporates egg and larval temperature-dependent development rates for Bighead, Silver and Grass carp with water temperature and flow conditions to predict where invasive carp are likely to spawn and where eggs and larvae will likely be located after a spawning event.
USGS Science and Technology Help Managers Battle Invasive Carp: A Geonarrative
Learn more about how the USGS is helping battle invasive carp by scrolling through this geonarrative, also known as a story map.
More information about invasive carp research is available from the links below.
Great Lakes Restoration Initiative Science
Increased threat of invasive carp entering the Great Lakes and spreading to other basins such as the Upper Mississippi River and Ohio River basins, has led to increased prevention and control efforts since 2010.
Wetland and Aquatic Research Center Science
Upper Midwest Environmental Science Center Science
⇒ Return to Invasive Species Science
USGS studies related to Asian carp are listed below.
USGS FAQ related to Asian carp are listed below.
Carp are not native to North American waters, but various carp species have been introduced here since the mid-1800s, much to the detriment of native fish. Although carp eradication measures have been active for over 100 years, long-established species, like the common carp, are present in almost every state.Asian carp (bighead, black, grass, and silver carp) were imported to the United States in...
Silver carp (a variety of Asian carp) are easily disturbed and will jump as much as 10 feet into the air in response to rocks thrown in the water, passing trains, geese taking off from the water, or just when they unexpectedly find themselves in a tight place. They also jump at the sound of outboard motors, often landing in boats and sometimes striking the passengers. With a boat speed of over 20...
Asian carp of all types have white, firm, mild flesh, which is excellent table fare, but all Asian carp also have intramuscular bones in the filets that many people find undesirable. Asian carp feed low on the food web, are fast growing, are low in fat in the filets, and are not usually bottom feeders — all properties of fish that are lower in contaminants. Like any fish taken from inland waters...
Eradicating an established population of Asian carp would be extremely difficult and expensive, if possible at all.Potential control methods include the use of fish poisons, physical barriers, physical removal, habitat alteration, or the addition of predators, parasites, or pathogens. Research on Asian carp control is ongoing as part of the Asian Carp Control Strategy FrameworkLearn more: USGS...