The sharksucker (Echeneis naucrates) is a species of remora in the family Echeneidae. It is one of the most widespread and well-known remora species, commonly found attaching itself to sharks, sea turtles, and other large marine animals.

Key Features of Echeneis naucrates

• Common Name: Live sharksucker

• Scientific Name: Echeneis naucrates

• Size: Typically 30–110 cm (12–43 inches)

• Habitat: Warm oceans worldwide, often in tropical and subtropical waters

• Distinguishing Features:

  • Has an elongated body with a dark stripe running along its side

  • Equipped with a suction disc (modified dorsal fin) on its head to attach to hosts

• Diet: Opportunistic feeder—eats scraps from its host’s meals, parasites, plankton, and small fish

• Behavior:

  • Frequently attaches to sharks, rays, sea turtles, whales, and even boats

  • Can detach and swim freely when necessary

  • Often forms mutualistic or commensal relationships, benefiting from transport and protection