I’ve got a ton of pollen floating on my missouri pond right now. Your water looks very clear. With the wind we’ve been getting does it all blow down into one end?
I’d give it a week or two and see if it doesn’t go away on its own.

9 yr old pond, 1 ac, 15' deep.
RES, YP, GS, FHM (no longer), HBG (going away), SMB, and HSB (only one seen in 5 yrs) Restocked HSB (2020) Have seen one of these.
I think that's about all I should put in my little pond.
Otter attack in 2023