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Eavesdropping at the Speed of Light: Distributed Acoustic Sensing of Baleen Whales in the Arctic

  • Auteur :

    Léa Bouffaut, Kittinat Taweesintananon, Hannah J. Kriesell, Robin A. Rørstadbotnen, John R. Potter, Martin Landrø, Ståle E. Johansen, Jan K. Brenne, Aksel Haukanes, Olaf Schjelderup and Frode Storvik

  • Auteur moral :

    Acoustics Group, Department of Electronic Systems, Norwegian University of Science and Technology (NTNU), Trondheim, Norway; Centre for Geophysical Forecasting, Norwegian University of Science and Technology (NTNU) Gløshaugen, Trondheim, Norway; K. Lisa Yang Center for Conservation Bioacoustics, Cornell Lab of Ornithology, Cornell University, Ithaca, NY, United States; PTT Exploration and Production Public Company Limited, Bangkok, Thailand; Department of Geoscience and Petroleum, Norwegian University of Science and Technology (NTNU), Trondheim, Norway; Alcatel Submarine Networks Norway AS, Tiller, Norway; Uninett AS (merged into Sikt, Jan. 2022), Trondheim, Norway.

  • Année de parution :

    2022

  • Résumé :

    In a post-industrial whaling world, flagship and charismatic baleen whale species are indicators of the health of our oceans. However, traditional monitoring methods provide spatially and temporally undersampled data to evaluate and mitigate the impacts of increasing climatic and anthropogenic pressures for conservation. Here we present the first case of wildlife monitoring using distributed acoustic sensing (DAS). By repurposing the globally-available infrastructure of sub-sea telecommunication fiber optic (FO) cables, DAS can (1) record vocalizing baleen whales along a 120 km FO cable with a sensing point every 4 m, from a protected fjord area out to the open ocean; (2) estimate the 3D position of a vocalizing whale for animal density estimation; and (3) exploit whale non-stereotyped vocalizations to provide fully-passive conventional seismic records for subsurface exploration. This first example’s success in the Arctic suggests DAS’s potential for real-time and low-cost monitoring of whales worldwide with unprecedented coverage and spatial resolution.

  • ISBN :

  • Thématique(s) :

    Biodiversité

  • Type de contenu :

    Article scientifique

  • Mot(s) clé(s) :

    bruit et santé

  • Langue :

    Anglais

  • Disponible en prêt au CidB :

    Oui

  • Réf. CidB :

    78/12863

  • Lien de téléchargement :

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