TJ,

Thanks for the clarification. More "successfully preyed upon" makes the discussion easier to follow for rookies such as myself.

However, you answered the secondary part of my question, not the primary.

A barely mobile GSF with a clipped tail should be more successfully preyed upon than a YP. (Assuming the predator has a sufficient mouth gape.)

If the OP makes it a project to remove GSF, is it worth the effort to clip them and throw them back in the pond in the hope that the top predators will start to train to eat GSF?

Or is a clipped GSF a completely different organism to a predator than a healthy, normal GSF? Will the predators' only learned behaviors be to wait around the dock after the fish trap is pulled out of the water because they know an easy meal will follow shortly thereafter?