Fish are creatures of the waters. A speaker says, “I make their rivers a wilderness and their fish to stink because the waters are dried up,” and adds, “and they die because of thirst” (2 Nephi 7:2).
A person may ask for a fish: “Or if he ask a fish, will he give him a serpent” (3 Nephi 14:10)?. People prepared a vessel “in which they did carry with them the fish of the waters” (Ether 2:2).