When the narrator and his brother replace the Duvitches' fish with the fish that they have caught, Mr. Duvitch reacts very emotionally. The narrator sees the similarities between Mr. Duvitch and his own father and realizes that Mr. Duvitch is a kind person who does not deserve scorn.
Which plot element is best represented by this event?
I'm not exactly sure, but the climax is the highest and middle part of the story. So the exposition would probably be the background of why (at first) the narrator didn't like Mr. Duvitch. The rising action would most likely be about catching and replacing the fish.
