grass carp
noun
plural grass carp also grass carps
: a freshwater cyprinid fish (Ctenopharyngodon idella) of eastern Asia that is olive-brown with a silvery-white belly and that has been introduced into non-native waters where it is often considered an invasive (see invasive entry 1 sense 1a) species
Native to Asia, grass carp were first imported here in 1963 by the U.S. Fish and Wildlife Service to evaluate as an alternative to herbicides and mechanical weed control.—Carolyn Shea
Note: Grass carp, along with the related bighead carp, black carp, and silver carp, are often called Asian carp in the U.S.
called also white amur
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Merriam-Webster unabridged
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