Skip to content

Research at St Andrews

Do pingers reduce interactions between bottlenose dolphins and nets around the Balearic Islands?

Research output: Contribution to journalArticlepeer-review

DOI

Open Access permissions

Open

Author(s)

J.M. Brotons, Z Munilla, A.M. Grau, Luke Edward Rendell

School/Research organisations

Abstract

The artisanal gillnet fishery around the Balearic Islands is experiencing a growing problem with bottlenose dolphins Tursiops truncatus depredating the bottom-set nets. The resulting catch loss engenders hostility from fishers, and interactions between dolphins and nets can result in bycatch mortality. One potential mitigation measure is the placement of acoustic alarms, or pingers, on the nets. However, as pingers have produced mixed results in studies of their effectiveness in other fisheries, direct evidence is needed on whether they will be effective in this fishery. We report on a large-scale experimental trial in which 59 different vessels from the artisanal fleet were each equipped with identical nets, and each vessel was assigned to 1 of 3 conditions: no pinger, inactive pinger or active pinger. Three brands of pinger were tested. During the trial, data on fishing operations were recorded by onboard observers. A total of 1193 fishing operations were observed. We analysed 2 response variables, the presence or absence of evidence that dolphins had interacted with the net, and standardized yields, using generalized linear mixed models. Overall net interaction rates were reduced by 49% with active pingers, but not all pinger brands were equally effective. Yields, measured as profit per unit effort, were increased by 9% in the active-pinger condition, but this was not statistically significant (p = 0.592). Our results suggest that pingers in the artisanal fisheries of the Balearic Islands reduced the rate of net interaction, but further study is required given dolphins’ potential for habituation.
Close

Details

Original languageEnglish
Pages (from-to)301-308
JournalEndangered Species Research
Volume5
Issue number2-3
Early online date23 Dec 2008
DOIs
Publication statusPublished - 2008

    Research areas

  • Pingers, Gillnet, Bottlenose dolphin , Balearics, Bycatch

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

View graph of relations

Related by author

  1. Using identity calls to detect structure in acoustic datasets

    Hersh, T. A., Gero, S., Rendell, L. & Whitehead, H., 29 May 2021, (E-pub ahead of print) In: Methods in Ecology and Evolution. Early View, 11 p.

    Research output: Contribution to journalArticlepeer-review

  2. A deepening understanding of animal culture suggests lessons for conservation

    Brakes, P., Carroll, E. L., Dall, S., Keith, S., McGregor, P., Mesnick, S., Noad, M., Rendell, L., Robbins, M., Rutz, C., Thorton, A., Whiten, A., Whiting, M., Aplin, L., Bearhop, S., Ciucci, P., Fishlock, V., Ford, J., Notarbartolo di Sciara, G., Simmonds, M. & 5 others, Spina, F., Wade, P., Whithead, H., Williams, J. & Garland, E. C., 28 Apr 2021, In: Proceedings of the Royal Society B: Biological Sciences. 288, 1949, 10 p., 20202718.

    Research output: Contribution to journalReview articlepeer-review

  3. Adaptation of sperm whales to open-boat whalers: rapid social learning on a large scale?

    Whitehead, H., Smith, T. D. & Rendell, L., 17 Mar 2021, In: Biology Letters. 17, 3, 5 p., 20210030.

    Research output: Contribution to journalArticlepeer-review

  4. Individual behavioural traits not social context affects learning about novel objects in archerfish

    Jones, N. A. R., Spence-Jones, H. C., Webster, M. & Rendell, L. E., 22 Feb 2021, In: Behavioral Ecology and Sociobiology. 75, 11 p., 58.

    Research output: Contribution to journalArticlepeer-review

  5. Stable isotopes suggest fine-scale sexual segregation in an isolated, endangered sperm whale population

    Pirotta, E., Vighi, M., Brotons, J. M., Dillane, E., Cerdà, M. & Rendell, L., 12 Nov 2020, In: Marine Ecology Progress Series. 654, p. 209-218 10 p.

    Research output: Contribution to journalArticlepeer-review

Related by journal

  1. Marine mammal conservation: over the horizon

    Nelms, S. E., Alfaro-Shigueto, J., Arnould, J. P. Y., Avila, I. C., Bengtson Nash, S., Campbell, E., Carter, M. I. D., Collins, T., Currey, R. J. C., Domit, C., Franco-Trecu, V., Fuentes, M. M. P. B., Gilman, E., Harcourt, R. G., Hines, E. M., Hoelzel, A. R., Hooker, S. K., Johnston, D. W., Kelkar, N., Kiszka, J. J. & 16 others, Laidre, K. L., Mangel, J. C., Marsh, H., Maxwell, S. M., Onoufriou, A. B., Palacios, D. M., Pierce, G. J., Ponnampalam, L. S., Porter, L. J., Russell, D. J. F., Stockin, K. A., Sutaria, D., Wambiji, N., Weir, C. R., Wilson, B. & Godley, B. J., 25 Mar 2021, In: Endangered Species Research. 44, p. 291-325 35 p.

    Research output: Contribution to journalReview articlepeer-review

  2. Up in the air: drone images reveal underestimation of entanglement rates in large rorqual whales

    Ramp, C., Gaspard, D., Gavrilchuk, K., Unger, M., Schleimer, A., Delarue, J., Landry, S. & Sears, R., 28 Jan 2021, In: Endangered Species Research. 44, p. 33-44 12 p.

    Research output: Contribution to journalArticlepeer-review

  3. First abundance estimate for white whales Delphinapterus leucas in Svalbard, Norway

    Vacquié-garcia, J., Lydersen, C., Marques, T. A., Andersen, M. & Kovacs, K., 27 Feb 2020, In: Endangered Species Research. 41, p. 253-263

    Research output: Contribution to journalArticlepeer-review

  4. Loggerhead turtle Caretta caretta density and abundance in Chesapeake Bay and the temperate ocean waters of the southern portion of the Mid-Atlantic Bight

    Barco, S. G., Burt, M. L., DiGiovanni, R. A., Swingle, W. M. & Williard, A. S., 13 Dec 2018, In: Endangered Species Research. 37, p. 269-287 19 p.

    Research output: Contribution to journalArticlepeer-review

  5. Animal Counting Toolkit: a practical guide to small-boat surveys for estimating abundance of coastal marine mammals

    Williams, R., Ashe, E. E., Gaut, K., Gryba, R., Moore, J. E., Rexstad, E., Sandilands, D., Steventon, J. & Reeves, R., 10 Aug 2017, In: Endangered Species Research. 34, p. 149-165 17 p.

    Research output: Contribution to journalArticlepeer-review

Related by journal

  1. Endangered Species Research (Journal)

    Matt Carter (Editor)

    1 Sep 2020 → …

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

  2. Endangered Species Research (Journal)

    Lucía Martina Martín López (Member of editorial board)

    2019 → …

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

  3. Endangered Species Research (Journal)

    Sophie Caroline Smout (Reviewer)

    7 Mar 2018

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

  4. Endangered Species Research (Journal)

    Monica Arso Civil (Reviewer)

    2016

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

  5. Endangered Species Research (Journal)

    Matt Carter (Reviewer)

    2016

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

ID: 409216

Top