Catmandoo,
Here is what I would try,
1. Using a hotdog your thinking too small get a large 3-6 cirlce hook put a huge chunk off bloody, nasty, left out too long, meat on the hook and wait a cat that big is all mouth and they will eat a football if it smells bad enough.
2. Rather than shooting a gun into the water (never a good idea) call a friend who is a bow hunter and put some meat by the shore line.
3. If you can see the holes in the side of the pond and you are brave enough, put a fish glove on and reach in and grab them out(push a stick in first to make sure that it is a fish hole)
Either way this should be fun not a pain get some refreshments and a few lawn chairs and have a catmandont party...
Maki