In Hemingway's The Old Man and the Sea (1952), what fish does Santiago catch?

In Hemingway’s The Old Man and the Sea (1952), Santiago catches a marlin.

Who was the last president to be elected without winning the largest share of the popular vote? Benjamin Harrison, Republican, in 1888, was the last president to be elected without winning the largest share of the popular vote. Fewer ballots were cast for him at the polling booth than for…
What is the name of Bette Davis’s character in All About Eve (1950)? Margo Channing was the name of Bette Davis's character in All About Eve (1950). Anne Baxter played her young fan and rival Eve Harrington.
Who is the hero of Richard Wright’s Native Son (1940)? The hero of Richard Wright's Native Son is Bigger Thomas, a black man from Chicago who murders a white woman and is executed for it.
How old was Lolita when Humbert Humbert first met her? Lolita was twelve when Humbert Humbert first met her.
Who said, “My mind to me a kingdom is”? Sir Edward Dyer said, "My mind to me a kingdom is" in his 1588 poem of the same name.
What is the source of the title The Catcher in the Rye (1951)? The source of the title The Catcher in the Rye is a reference to Robert Burns's poem "Comin' Through the Rye" (1792), which Holden Caulfield quotes.