You asked "Should I confront him about how I feel?"
The answer depends on whether you're a boy or a girl.
If you're a boy: No. Get over it. Forget about it. It's nothing.
If you're a girl: Yes. What he did was wrong, and if he ever wants to see you naked again, he will have to admit it, and apologize, and he better be sincere about it.
But won't your friend still have a broken fishing pole, even if you confront him with your feelings?
If you want repair advice, we need more information.
Describe the pole in detail. Wha'ts it made of (graphite, fiberglass, etc.)?
One-piece? 2 or more pieces?
How long was the rod before he broke it? How long are the pieces?
Anything else you can think of.