Yes, it seems that a pond is but a smorgasbord to critters. Or in the case of your cat, a toy store! LOL. I relocated a turtle once that was eating my comets. I drove it down the street and let it go in the woods.
Domino is a laid back kind of dad. LOL. He lounges around and doesn't pay much attention to the kittens. But thanks for the info. I'll watch him.