Converting Pool to Pond

I want to convert my pool to a artificial pond so that wildlife like ducks and fish can take up residence. Of course I'd have to add the fish. But I'm wondering

1. How do I oxygenate the water without electricity?
2. How Do I keep dirt and silt from getting into the pump?

I was thinking a clay pot sitting over the drain at the bottom of the pool. Then, a weed cloth over that, and pebbles over that. Finally water over all of these. Has anyone tried this before. If so, how did it work. Here is picture of my layout.

Sean Rafferty wrote:
2. How Do I keep dirt and silt from getting into the pump?

You run it like an aquarium, with an under-gravel pump and filter arrangement. Which then begs the first question, you really need to move the water around to be able to oxygenate and clean it. I'm doing the same thing with my pool, and I have been looking to set up a pump and solar panel arrangement. Not enough water movement and it is going to turn into a fetid swamp; adequate water movement and you will have a nice pond.

If you google "natural swimming pool" you can unlock a wealth of resources and ideas.