It's drizzling at the moment, so the pix will have to come later. But, for now, I wonder how those with ponds - especially ones with islands - deal with / manage the plant ecology involved.
I think that control of some weeds on the island might be a good idea. But others might have tested the view: "let Nature takes its course" and found it to be the best policy.
I also wonder how organic matter - pond litter, if you like - of fallen leaves, blossoms and suchlike add to or detract from the oh-so-slow sealing of a pond with minor leaks[s]?