Mikel, I am new to pond ownership and have had to deal with this situation. I let people know that I have a strict fisheries management plan in place, which is true, and that I am monitoring all fishing activities which includes catch and release, as well as any fish that might be foul hooked and not expected to survive. Once I'm ready for friends, and family for that matter, to fish my pond I will notify them with an invitation. I have worked hard to acheive pond ownership and along with that hard work comes the right to say who does and who does not get to fish there.