Asian carp

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Asian carp,

term for several large, hardy freshwater fish of the family Cyprinidae (the minnowminnow,
common name for the Cyprinidae, a large family of freshwater fish which includes the carp (Cyprinus carpio), and of which there are some 2,400 species. Minnows have soft-rayed fins and teeth in the throat only.
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 family) that are native to E Asia and have become invasive species in the United States. The fish, which can grow to more than 4 ft (1.2 m) and weigh more than 50 lb (23 kg), were introduced in the 1960s and 1970s to control algae and other vegetation in fish farms. Due to escape or release, the grass carp (Ctenopharyngodon idella), bighead carp (Hypophthalmichthys nobilis), and silver carp (H. molitrix) have spread to numerous waterways in the Mississippi River basin. Their large size, rapid reproduction rate, and voracious appetites have led to the reduction of native fish stocks, and they have damaged habitats as well. Asian carp pose a significant risk to the ecosystem and fishing industry of the Great Lakes, and since 2002 the Army Corps of Engineers, the Environmental Protection Agency, the U.S. Fish and Wilflife Service, and other agencies have with limited success sought to prevent the carp from entering Lake Michigan from the Illinois River. Measures used have included the construction of electric barriers on the Chicago Sanitary and Ship Canal, poisoning, and encouraging the catching and eating of the fish. See also carpcarp,
hardy freshwater fish, Cyprinus carpio, the largest member of the minnow family; it is also known as the common carp. A native of Black, Caspian, and Aral sea basins of Eurasia, the carp has been introduced widely elsewhere in the world and has become so well
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. Asian carp are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, class Actinopterygii, order Cypriniformes, family Cyprinidae.
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References in periodicals archive ?
Biologists at Fisheries and Oceans Canada s Asian Carp Laboratory performed sampling and preliminary analyses on the specimen to determine its ability to reproduce.
Ensuring the health and productivity of the Great Lakes by preventing the introduction of Asian Carp remains one of the highest priorities for Ontario and for my ministry," said Ontario Ministry of Natural Resources David Orazietti.
Asian carp are hardy, lay hundreds of thousands of eggs at a time and spread into new habitat quickly and easily.
Friends and neighbors of the Great Lakes are particularly concerned about the impact Asian carp could have on the region's $7 billion/year fishing industry.
Regardless of whether the states can keep the Mississippi and Great Lakes systems segregated, Asian carp are expected to keep spreading throughout other parts of the U.
In the meantime, state and federal agencies are monitoring the Mississippi and its tributaries for Asian carp and testing various barrier technologies to prevent their further spread.
Symposium on Invasive Asian Carps in North America: A Forum to Understand.
Population surges in four species of Asian carp have caused ecological and economic damage as they compete with native fish populations and cause changes in water quality in the US and Canada, especially in the Mississippi River Basin.

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