First time post so thank you in advance for the replies. I am sure I will have many more questions as I get into working with my ponds/dam system.

I just bought some property that was previously my grandparents farm, the pasture has a series of erosion prevention dams on it that cascade into each other. My grandpa passed away in 2004 and since then I do not think there has been much work done on the property. Since I own it now, I am curious if I should remove the following trees from the side of the dam. They are not giant but are not super small either. I am new to all this so any suggestions would be helpful. The dam was reconstructed reconstructed in the late 90s early 00s.

Google Photos Link

Thanks
Kris Ahrens