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Dolphin changes in whistle structure with watercraft activity depends on their behavioral state.

Author information

Affiliations

  • 1. Department of Biology, University of Vermont, 109 Carrigan Drive, Burlington, Vermont 05405
      Authors
    • May-Collado LJ 1
    (1 author)
  • 2. Department of Biology, University of Puerto Rico, P.O. Box 23360, San Juan, Puerto Rico 00931-3360
      Authors
    • Quiñones-Lebrón SG 2
    (1 author)

The Journal of the Acoustical Society of America, 01 Apr 2014, 135(4):EL193-8
https://doi.org/10.1121/1.4869255 PMID: 25236153 

Abstract 

Dolphins rely on whistles to identify each other and to receive and convey information about their environment. Although capable of adjusting these signals with changing environments, there is little information on how dolphins acoustically respond to different watercraft activities and if this response depends on dolphin behavioral state. Bottlenose dolphin whistles were recorded in the presence of research and dolphin-watching boats. Dolphins emitted lower frequency and longer whistles when interacting with dolphin-watching boats, particularly during foraging activities. This study suggests that dolphin-watching boat traffic significantly hinders dolphin communication during important behavioral states.

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Read article at publisher's site: https://doi.org/10.1121/1.4869255

Read article for free, from open access legal sources, via Unpaywall: https://asa.scitation.org/doi/pdf/10.1121/1.4869255Unpaywall

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