JOURNAL ARTICLE

Narwhal (Monodon monoceros) echolocation click rates to support cue counting passive acoustic density estimation.

  • Published In: Journal of the Acoustical Society of America, 2024, v. 155, n. 2. P. 891 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Marques, Carolina S.; Marques, Diana A.; Blackwell, Susanna B.; Heide-Jørgensen, Mads Peter; Malinka, Chloe E.; Marques, Tiago A. 3 of 3

Abstract

This article focuses on estimating the echolocation click production rate (cue rate) of narwhals (Monodon monoceros) to support passive acoustic monitoring (PAM) density estimation. Using sound and movement biologging tags deployed on eight narwhals in East Greenland during August of 2013–2016 and 2019, researchers analyzed ∼1200 one-second acoustic samples to model the probability of clicking and click rates relative to depth and time. Results showed that narwhals are more likely to click at greater depths, with an overall weighted mean cue rate of 1.28 clicks per second during clicking periods. The study highlights the potential of using these cue rates for PAM-based density estimates but cautions about geographic, seasonal, and individual variability, emphasizing the need for further research across different populations and conditions.

Additional Information

  • Source:Journal of the Acoustical Society of America. 2024/02, Vol. 155, Issue 2, p891
  • Document Type:Article
  • Subject Area:Zoology
  • Publication Date:2024
  • ISSN:0001-4966
  • DOI:10.1121/10.0024723
  • Accession Number:175797436
  • Copyright Statement:Copyright of Journal of the Acoustical Society of America is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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