Author David Starr Jordan (1851–1931), Barton Warren Evermann (1853–1932)
English: Naucrates ductor (Linnaeus); after Jordan and Evermann
Subject: Carangidae, Naucrates
Tag: Fish
Date 1905
Source/Photographer
English: Jordan, David Starr; Evermann, Barton Warren (1905) Shore Fishes of the Hawaiian Islands, With a General Account of the Fish Fauna, Bulletin of the United States Fish Commission, vol. 23 for 1903, part I, Washington, DC: Government Printing Office
Source: https://commons.wikimedia.org/wiki/File:FMIB_42434_Naucrates_ductor_(Linnaeus);_after_Jordan_and_Evermann.jpeg

The pilot fish (Naucrates ductor) is a carnivorous fish of the trevally, or jackfish family, Carangidae. It is widely distributed and lives in warm or tropical open seas. The pilot fish congregates around sharks, rays, and sea turtles, where it eats ectoparasites on, and leftovers around the host species; younger pilot fish are usually associated with jellyfish and drifting seaweeds.