Fill and paint would be my choice, I don't see anything that isn't normal wear and tear on a fishing boat.
Personally, i never much worried about scratches and little bumps on my boats, its going to happen no matter what.
The only thing that would even remotely concern me is a puncture or deep gouge below the water line.
One place I fish is full of submerged pilings, it takes years to learn where they all are and even then on occasion you find a nail sticking out somewhere that leaves a permanent mark, and on occasion a tear.
I don't let it ruin the day, I carry some basic tools and some tape with me that can patch a hole in a pinch if I have to, if not, my boat has two bilge pumps.
Smooth it over with some JB Weld, sand smooth and touch up with some paint that matches or is at least dark enough not to stick out like a sore thumb. I have a buddy with a boat that's likely got a thousand JB Weld patches on it, he hits everything and his boat is rotting away out from under him in the saltwater here. It looks like a silve and gray dalmatian on the water its got so many spots filled in with epoxy.