KS Statute 32-703: State ownership of wildlife. The ownership of and title to all wildlife, both resident and migratory, in the state, not held by private ownerships, legally acquired, shall be, and are hereby declared to be in the state.

If caught in a stream flowing through property, you may not need a license to catch it, but you will to sell it commercially. If stocked into a pond, the fish caught and all offspring are State property.