LINCOLN, Neb. (AP) — A man and wife who sold fish for food from their Lincoln home have pleaded guilty to federal charges.

Prosecutors say 48-year-old Phong Duong pleaded guilty Friday to conspiring to traffic wildlife. His spouse, 46-year-old Oanh Pham, pleaded guilty to illegally taking, transporting and selling fish. Both are scheduled to be sentenced on Sept. 20.

Prosecutors say that between May 2013 and July 2016, Duong and Pham exceeded the limits on catching fish from the Kirwin National Wildlife Refuge in northern Kansas and other reservoirs. They’d take the fish back home to Nebraska, then clean and bag them at their home in Lincoln before selling the fish.