Interesting read. I�m guessing the eggs themselves are safe. Now that I think back over the three springs my YP have been in, I don�t recall seeing a ribbon that had been torn up.
Maybe I just need to do a better job of protecting the fry.

12 yr old pond, 1 ac, 15' deep.
RES, YP, GS, FHM (no longer), HBG (decreasing), SMB, and HSB (only two have been seen in 5 yrs)
I think that's about all I should put in my little pond.
Otter attack in 2023.