Wis. Stat. § 29.737: Permit for private management.

(1) Any person or persons owning all of the land bordering a navigable lake that is completely landlocked may apply to the department for a permit to remove, destroy or introduce fish in the lake.

(2) The department shall hold a public hearing on the permit application in the vicinity of the lake, and if the department determines that the hearing is favorable the department may issue a permit authorizing the applicant to remove, destroy or introduce fish in the lake.

(3) The department shall impose appropriate terms, conditions and limitations on the permit. All work done under the permit shall be under the supervision of employees or agents of the department, who shall have free access to the lake at all times for that purpose. The permittee shall pay the expenses of the supervision.

(4) All fish removed from the lake under a permit shall be disposed of as directed by the department.

(5) A person who is using a navigable lake that is a freeze-out pond as a fish farm, or as part of a fish farm, is exempt from obtaining a permit under this section.