The marlin - Santiago hooks the marlin, which we learn at the end of the novella measures eighteen feet, on the first afternoon of his fishing expedition. Because of the marlin’s great size, Santiago is unable to pull the fish in, and the two become engaged in a kind of tug-of-war that often seems more like an alliance than a struggle. The fishing line serves as a symbol of the fraternal connection Santiago feels with the fish. When the captured marlin is later destroyed by sharks, Santiago feels destroyed as well. Like Santiago, the marlin is implicitly compared to Christ