The use of white amur (Ctenopharyngodon idella) as a weed control agent in surface waters has been strongly protested or banned in many sections throughout the U.S. The chief criticism has been that white amur, like common carp (Cyprinus carpio), is a member of the minnow family, and might become as noxious in many aquatic habitats as the common carp. In the Southeastern U.S., common carp are present in most streams and impoundments, but their population density has seldom reached a noxious level. While common carp have limited sport or commercial appeal in this section of the country, their presence in many areas is considered beneficial since their bottom feeding habit decreases accumulation of organic materials.