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Updated: Jun 13, 2025

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Animal navigation: Jellyfish dodge the drift.

Graeme C Hays1

  • 1Deakin Marine Research and Innovation Centre, Deakin University, Geelong, VIC, Australia.

Current Biology : CB
|September 10, 2024
PubMed
Summary

Jellyfish can actively orient themselves in the ocean, similar to sea turtles. They use ocean waves for directional swimming to avoid being washed ashore.

Area of Science:

  • Marine Biology
  • Animal Behavior
  • Oceanography

Background:

  • Navigating open ocean environments poses significant orientation challenges due to the absence of distinct landmarks.
  • Jellyfish have traditionally been viewed as passive planktonic drifters, with limited capacity for directed movement.

Purpose of the Study:

  • To investigate the navigational capabilities of jellyfish in marine environments.
  • To determine if jellyfish exhibit directional swimming behaviors to avoid coastal stranding.
  • To explore the potential use of environmental cues, such as ocean waves, for jellyfish orientation.

Main Methods:

  • Observational studies of jellyfish behavior in relation to wave patterns.
  • Controlled experiments simulating oceanic conditions to assess directional swimming.

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  • Comparative analysis of orientation strategies between jellyfish and other marine animals like hatchling turtles.

    • Main Results:

    • Accumulating evidence suggests jellyfish are not merely passive drifters.
    • Jellyfish demonstrate directional swimming capabilities, actively maneuvering to avoid unfavorable conditions.
    • Ocean waves serve as a crucial cue for jellyfish orientation, guiding their movement away from shore.

    Conclusions:

    • Jellyfish possess sophisticated orientation mechanisms in the marine environment.
    • The ability to use wave patterns for navigation challenges the traditional view of jellyfish as passive organisms.
    • Jellyfish exhibit active behavioral strategies for survival, comparable to those observed in species like hatchling turtles.