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Advances in research on the impacts of anti-submarine sonar on beaked whales

Research output: Contribution to journalReview articlepeer-review

DOI

Author(s)

Y. Bernaldo De Quirós, A. Fernandez, R. W. Baird, R. L. Brownell, N. Aguilar De Soto, D. Allen, M. Arbelo, M. Arregui, A. Costidis, A. Fahlman, A. Frantzis, F. M.D. Gulland, M. Iñíguez, M. Johnson, A. Komnenou, H. Koopman, D. A. Pabst, W. D. Roe, E. Sierra, M. Tejedor & 1 more G. Schorr

School/Research organisations

Abstract

Mass stranding events (MSEs) of beaked whales (BWs) were extremely rare prior to the 1960s but increased markedly after the development of naval mid-frequency active sonar (MFAS). The temporal and spatial associations between atypical BW MSEs and naval exercises were first observed in the Canary Islands, Spain, inNon the mid-1980s. Further research on BWs stranded in association with naval exercises demonstrated pathological findings consistent with decompression sickness (DCS). A 2004 ban on MFASs around the Canary Islands successfully prevented additional BW MSEs in the region, but atypical MSEs have continued in other places of the world, especially in the Mediterranean Sea, with examined individuals showing DCS. A workshop held in Fuerteventura, Canary Islands, in September 2017 reviewed current knowledge on BW atypical MSEs associated with MFAS. Our review suggests that the effects of MFAS on BWs vary among individuals or populations, and predisposing factors may contribute to individual outcomes. Spatial management specific to BW habitat, such as the MFAS ban in the Canary Islands, has proven to be an effective mitigation tool and mitigation measures should be established in other areas taking into consideration known population-level information.

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Details

Original languageEnglish
Article number20182533
JournalProceedings of the Royal Society B: Biological Sciences
Volume286
Issue number1895
DOIs
Publication statusPublished - 30 Jan 2019

    Research areas

  • Beaked whales, Decompression sickness, Naval exercises, Sonar, Stranding

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