Ok, my attempt at putting s net on the pond has been a disaster. I made a bamboo frame and zip-tied a net to it, placing it over the pond. I had a gap of about 4 inches in height at either end so that birds and frogs could get in and out. I think the net has caught 4 leaves in the whole of winter and there are now more leaves in my pond than water, I think. This is after me spending 3 hours a couple of weeks ago picking them all out.
I don't knwo whether to just leave it for now and deal with it at the end of winter or whether to put the hours in keeping on top of it.
I have a litter-picker that I use for some of it and I grabbed a clump of leaves from between two rocks and got a frog by the leg. Nice to see he's in there, still.