Pond algae as mulch/feed

I've removed large amounts of blanket weed from a pond, and left it on the side so any wildlife in it could make its way back into the pond. It was an impressive amount of material at the time, but a week later it had dried out to almost nothing. So I'm not sure it would provide all that much nutrition. Spreading it around your plants would be a quick way to dispose of it though. G&R