"Closed aquatic system" means any body of water, water system, canal system, or series of lakes, canals, or ponds where triploid white amur are prevented from entering or exiting the system by any natural or man-made barrier, as determined by the Department.
"Triploid" means a species having three homologous sets of chromosomes that renders the individuals sterile.
Ariz. Admin. Code § R12-4-424