A self-tightening culling clip used to secure a marker to a fish for quick identification of the fish in a livewell, for example. The self-tightening culling clip has handles coupled together about a handle pivot and a marker attached to a lift-pivot. A spring forces the jaw end of the handles together and a user may squeeze the handle end of the handles to open the jaws for attaching to a fish. When the marker is lifted, the handles pivot about the handle-pivot to apply force to close the jaws, thereby creating a self-tightening culling clip. A pair of links extend from the lift pivot to the handles and these links for the handle end of the handles outward when the marker is lifted. The marker may have a distinctive identifier color and/or character.
