Sharks can Detect Changes in the Geomagnetic Field

Journal Article

Title: Sharks can Detect Changes in the Geomagnetic Field
Publication Date:
December 14, 2004
Journal: Journal of the Royal Society Interface
Volume: 2
Pages: 129-130
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Document Access

Website: External Link

Citation

Meyer, C.; Holland, K.; Papastamatiou, Y. (2005). Sharks can Detect Changes in the Geomagnetic Field. Journal of the Royal Society Interface, 2, 129-130.
Abstract: 

We used behavioural conditioning to demonstrate that sharks can detect changes in the geomagnetic field. Captive sharks were conditioned by pairing activation of an artificial magnetic field with presentation of food over a target. Conditioned sharks subsequently converged on the target when the artificial magnetic field was activated but no food reward was presented thereby demonstrating that they were able to sense the altered magnetic field. This strong response provides a robust behavioural assay that could be used to determine how sharks detect magnetic fields and to measure detection thresholds.

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