When you say pond... Do you mean a backyard pond? Or are you talking about a giant pond that does not belong to you? Backyard ponds would be a challenge, get a giant net and do your best I guess. If it's a very large pond that does not belong to you... I don't even know what to say. If it's like a fishing pond or something you will probably never catch those fish again.
I think unless the water is heated, it's still quite cold outside. The fish that can survive in these temps usually have a process of slowly ramping temps down; if you just threw them into ice cold waters I would say odds are not great.