YES!! For sure I could give you an exact location if you want and I took pictures when I was there it is right under the Zakim bridge for some odd reason the Carp literally just sit there! They were eating bread so I put bread and a piece of chicken from my meal haha then wham! I caught a few and one was the biggest carp I have ever seen! The Charles is not the cleanest river also I don' t eat carp the guy next to me says he does so I guess they are edible?
I was very surprised that the carp ate chicken I heard they do not eat meat.
K I know ho to post an image they were fighting over bread in one then the next was the big guy I caught.