Author David Starr Jordan (1851–1931)
English: Pilot-fish, Naucrates ductor (Linnaeus). New Bedford, Mass.
Subject: Carangidae, Naucrates
Tag: Fish
Date 1907
Source/Photographer
English: Jordan, David Starr (1907) Fishes, New York City, NY: Henry Holt and Company
Source: https://commons.wikimedia.org/wiki/File:FMIB_51920_Pilot-fish,_Naucrates_ductor_(Linnaeus)_New_Bedford,_Mass.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.