Skip to content

Research at St Andrews

Echolocation click parameters and biosonar behaviour of the dwarf sperm whale (Kogia sima)

Research output: Contribution to journalArticlepeer-review

DOI

Open Access Status

  • Embargoed (until 26/03/22)

Author(s)

Chloe E Malinka, Pernille Tønnesen, Charlotte A Dunn, Diane E Claridge, Tess Gridley, Simon H Elwen, Peter Teglberg Madsen

School/Research organisations

Abstract

Dwarf sperm whales (Kogia sima) are small toothed whales that produce narrow-band high-frequency (NBHF) echolocation clicks. Such NBHF clicks, subject to high levels of acoustic absorption, are usually produced by small, shallow-diving odontocetes, such as porpoises, in keeping with their short-range echolocation and fast click rates. Here, we sought to address the problem of how the little-studied and deep-diving Kogia can hunt with NBHF clicks in the deep sea. Specifically, we tested the hypotheses that Kogia produce NBHF clicks with longer inter-click intervals (ICIs), higher directionality and higher source levels (SLs) compared with other NBHF species. We did this by deploying an autonomous deep-water vertical hydrophone array in the Bahamas, where no other NBHF species are present, and by taking opportunistic recordings of a close-range Kogia sima in a South African harbour. Parameters from on-axis clicks (n=46) in the deep revealed very narrow-band clicks (root mean squared bandwidth, BWRMS, of 3±1 kHz), with SLs of up to 197 dB re. 1 µPa peak-to-peak (μPapp) at 1 m, and a half-power beamwidth of 8.8 deg. Their ICIs (mode of 245 ms) were much longer than those of porpoises (<100 ms), suggesting an inspection range that is longer than detection ranges of single prey, perhaps to facilitate auditory streaming of a complex echo scene. On-axis clicks in the shallow harbour (n=870) had ICIs and SLs in keeping with source parameters of other NBHF cetaceans. Thus, in the deep, dwarf sperm whales use a directional, but short-range echolocation system with moderate SLs, suggesting a reliable mesopelagic prey habitat.

Close

Details

Original languageEnglish
Article numberjeb240689
Number of pages16
JournalJournal of Experimental Biology
Volume224
Issue number6
DOIs
Publication statusPublished - 26 Mar 2021

    Research areas

  • Beam pattern, Bioacoustics, Hydrophone array, Narrow-band high-frequency, Passive acoustic monitoring, Source parameters

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

View graph of relations

Related by author

  1. Slower ship speed in the Bahamas due to COVID-19 produces a dramatic reduction in ocean sound levels

    Dunn, C., Theriault, J., Hickmott, L. & Claridge, D., 26 Jul 2021, In: Frontiers in Marine Science. 8, 12 p., 673565.

    Research output: Contribution to journalArticlepeer-review

  2. An autonomous hydrophone array to study the acoustic ecology of deep-water toothed whales

    Malinka, C. E., Atkins, J., Johnson, M. P., Tønnesen, P., Dunn, C. A., Claridge, D. E., Aguilar de Soto, N. & Madsen, P. T., Apr 2020, In: Deep Sea Research Part I: Oceanographic Research Papers. 158, 103233.

    Research output: Contribution to journalArticlepeer-review

  3. Estimating group size from acoustic footprint to improve Blainville’s beaked whale abundance estimation

    Marques, T. A., Jorge, P. A., Mouriño, H., Thomas, L., Moretti, D. J., Dolan, K., Claridge, D. & Dunn, C., 15 Dec 2019, In: Applied Acoustics . 156, p. 434-439

    Research output: Contribution to journalArticlepeer-review

  4. Behavioral responses of satellite tracked Blainville's beaked whales (Mesoplodon densirostris) to mid-frequency active sonar

    Joyce, T. W., Durban, J. W., Claridge, D. E., Dunn, C. A., Hickmott, L. S., Fearnbach, H., Dolan, K. & Moretti, D., 17 Jun 2019, (E-pub ahead of print) In: Marine Mammal Science. Early View

    Research output: Contribution to journalArticlepeer-review

  5. Combining multiple visual surveys to model the habitat of deep-diving cetaceans at the basin scale

    Virgili, A., Authier, M., Boisseau, O., Cañadas, A., Claridge, D., Cole, T., Corkeron, P., Dorémus, G., David, L., Di‐Méglio, N., Dunn, C., Dunn, T. E., García‐Barón, I., Laran, S., Lauriano, G., Lewis, M., Louzao, M., Mannocci, L., Martínez‐Cedeira, J., Palka, D. & 10 others, Panigada, S., Pettex, E., Roberts, J. J., Ruiz, L., Saavedra, C., Begoña Santos, M., Van Canneyt, O., Vázquez Bonales, J. A., Monestiez, P. & Ridoux, V., Mar 2019, In: Global Ecology and Biogeography. 28, 3, p. 300-314

    Research output: Contribution to journalArticlepeer-review

Related by journal

  1. Improving estimates of diving lung volume in air-breathing marine vertebrates

    Fahlman, A., Sato, K. & Miller, P., Jun 2020, In: Journal of Experimental Biology. 223, 7 p., jeb216846.

    Research output: Contribution to journalReview articlepeer-review

  2. Diving apart together: call propagation in diving long-finned pilot whales

    Kok, A. C. M., van Kolfshoten, L., Campbell, J. A., von Benda-Beckmann, A. M., Miller, P. J. O., Slabbekoorn, H. & Visser, F., 27 May 2020, In: Journal of Experimental Biology. 223, 10, 11 p., jeb207878.

    Research output: Contribution to journalArticlepeer-review

  3. Flash and grab: deep-diving southern elephant seals trigger anti-predator flashes in bioluminescent prey

    Goulet, P., Guinet, C., Campagna, C., Campagna, J., Tyack, P. L. & Johnson, M., 19 May 2020, In: Journal of Experimental Biology. 223, 10, 11 p., jeb.222810.

    Research output: Contribution to journalArticlepeer-review

  4. When the noise goes on: received sound energy predicts sperm whale responses to both intermittent and continuous navy sonar

    Isojunno, S., Wensveen, P., Lam, F-P., Kvadsheim, P., von Brenda-Beckmann, A. M., Martín López, L. M., Kleivane, L., Siegal, E. & Miller, P., 8 Apr 2020, In: Journal of Experimental Biology. 223, 7, 10 p., jeb219741.

    Research output: Contribution to journalArticlepeer-review

ID: 274691053

Top