Carterville Fishery Resources Office (FRO) was established in 1981 and is located at the Crab Orchard National Wildlife Refuge in Marion, Illinois. The office provides fishery management assistance to other Fish and Wildlife Service offices, federal and state agencies, and Department of Defense military bases in Illinois, Indiana, Missouri, and Ohio. Carterville FRO accomplishes its mission of conserving, enhancing, and protecting fish and aquatic ecosystems by working with partners.
Carterville FRO, in partnership with the Columbia FRO, assists the 28 states of the Mississippi Interstate Cooperative Resource Association (MICRA) with a basin-wide paddlefish stock assessment. Carterville FRO has operated a processing center for coded-wire tags and assisted in database management for this national project since 1997. Twenty-three states depend upon these services and are using the data to develop 4 multijurisdictional plans to manage paddlefish with assistance from the Fish and Wildlife Service.