Not an expert here but speaking from personal experience. Rod is spot on with his recommendations with the silt fence. My pond was completed in the fall like yours. I spread Bermuda hay (large round bales) around all of my pond banks in significant amounts and still had major erosion issues. I had to use heavy equipment to repair the damage. Wish I would have been on the forum and received this advise when I was in the beginning stages.
As always there are some great resources here.
The old saying of an ounce of prevention is worth a pound of cure goes a long ways in pond management as well.
2 Acre, Completed July 2022, CC,BG, Sept. 2022, LMB June 2023, GSF, YBH invasion in 2022. BG, CNBG, RES, 2025, TP seasonal.