(AP) — The Nebraska Game and Parks Commission says a chemical will be applied at Pawnee Lake near Lincoln in an attempt to get rid of unwanted white perch and gizzard shad from the fish population.

Rotenone typically is used to eliminate all fish from a body of water; however, a lower concentration will be applied Nov. 12-13 in locations on the lake where white perch and gizzard shad may be concentrated.

Officials say some loss of desirable fish is expected. Additional predator fish will be stocked next spring in the hope that they will feed on the undesirable fish.

The lake will not be closed during the treatment, but fish aren’t likely to be biting following the treatment. Fish killed by rotenone are not approved for human consumption.