Skip to content

Research at St Andrews

Field assessment of C-POD performance in detecting echolocation click trains of bottlenose dolphins (Tursiops truncatus)

Research output: Contribution to journalArticle

DOI

Author(s)

B.L. Roberts, A.J. Read

School/Research organisations

Abstract

We evaluated the performance of dolphin echolocation detectors (C-PODs) in the New River, North Carolina, by ground-truthing echolocation detections with digital acoustic recordings. We deployed C-PODs at three sites for a total of 204 monitoring hours. We also performed detection range trials at two sites where water depths ranged from 1.0 to 4.5 m. We used Detection Positive Minutes (DPMs), minutes of C-POD recordings that contained at least one echolocation click train, to indicate the presence of at least one dolphin. The C-PODs performed well in detecting dolphin click trains, although all units performed conservatively by failing to detect some echolocation events and therefore underestimated the true occurrence of dolphins. C-PODs reported only a small number of false detections, as indicated by low false positive rates ranging between 1% and 4% for individual units. Overall, C-PODs performed with a high accuracy (72%-91%) and detected echolocation at a distance of at least 933 m. We conclude that C-PODs hold considerable promise in future monitoring studies of this species, but recommend a careful study design especially in complex, coastal environments.
Close

Details

Original languageEnglish
Pages (from-to)169-190
Number of pages22
JournalMarine Mammal Science
Volume31
Issue number1
Early online date27 Jun 2014
DOIs
Publication statusPublished - Jan 2015

    Research areas

  • False positive, Passive acoustic monitoring, Bottlenose dolphin, Tursiops truncatus, C-POD, DMON, Echolocation, Detection

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by journal

  1. Accuracy and precision of dolphin group size estimates

    Gerrodette, T., Perryman, W. L. & Oedekoven, C. S., Jan 2019, In : Marine Mammal Science. 35, 1, p. 22-39 18 p.

    Research output: Contribution to journalArticle

  2. Harbor porpoise (Phocoena phocoena) reactions to pingers

    Kindt-Larsen, L., Willestofte Berg, C., Northridge, S. P. & Larsen, F., Apr 2019, In : Marine Mammal Science. 35, 2, p. 552-573

    Research output: Contribution to journalArticle

  3. Breathing synchrony in franciscana (Pontoporia blainvillei) and Guiana dolphins (Sotalia guianensis) in Southern Brazil

    Actis, P. S., Danilewicz, D., Cremer, M. J. & Bortolotto, G. A., Jul 2018, In : Marine Mammal Science. 34, 3, p. 777-789

    Research output: Contribution to journalArticle

  4. Clicks of dwarf sperm whales (Kogia sima)

    Merkens, K., Mann, D., Janik, V. M., Claridge, D., Hill, M. & Oleson, E., 24 Oct 2018, In : Marine Mammal Science. 34, 4, p. 963-978

    Research output: Contribution to journalArticle

  5. Distribution and abundance of beaked whales (Family Ziphiidae) off Cape Hatteras, North Carolina, U.S.A.

    McLellan, W. A., McAlarney, R. J., Cummings, E. W., Read, A. J., Paxton, C. G. M., Bell, J. T. & Pabst, D. A., 30 Mar 2018, In : Marine Mammal Science. 34, 4, p. 997-1017

    Research output: Contribution to journalArticle

Related by journal

  1. Marine Mammal Science (Journal)

    Sophie Caroline Smout (Reviewer)
    1 Dec 201730 Dec 2017

    Activity: Publication peer-review and editorial work typesPeer review of manuscripts

  2. Marine Mammal Science (Journal)

    Nora Nell Hanson (Member of editorial board)
    2017

    Activity: Publication peer-review and editorial work typesPeer review of manuscripts

  3. Marine Mammal Science (Journal)

    Sophie Caroline Smout (Reviewer)
    Jul 2016 → …

    Activity: Publication peer-review and editorial work typesPeer review of manuscripts

  4. Marine Mammal Science (Journal)

    Monica Arso Civil (Reviewer)
    20142018

    Activity: Publication peer-review and editorial work typesPeer review of manuscripts

  5. Marine Mammal Science (Journal)

    Nora Nell Hanson (Reviewer)
    2012 → …

    Activity: Publication peer-review and editorial work typesPeer review of manuscripts

ID: 161869204