The black carp was accidentally imported with grass carp to a private fish farm in Arkansas in the early 1970’s. The next time it was imported was intentionally as a food fish and as a biocontrol agent to control snails which harbors the yellow grub, a catfish parasite in aquaculture ponds. In 1994 approximately 30 fish escaped a facility into the Osage River in Missouri after high water flooded hatchery ponds.  So far the fate of those escapees is unknown. The black carp is known to be a molluscivore and continued importation of the black carp is currently being hotly debated.