Trunk around centerboard

I just bought and sailed for the first time a day sailor I. Around the centerboard is some very small cracks - could just be glass starting to peel or something related.
Any suggests on repairing it? I prefer to do so on the water
scott anchors (scott.anchors-at-umaine.edu)
Any suggests on repairing it? I prefer to do so on the water
scott anchors (scott.anchors-at-umaine.edu)