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  • Global spatial risk assessment of sharks under the footprint of fisheries

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    Gustafson238081-Accepted.pdf (4.109Mb)
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    Accepted Manuscript (AM)
    Author(s)
    Queiroz, Nuno
    Humphries, Nicolas E
    Couto, Ana
    Vedor, Marisa
    da Costa, Ivo
    Sequeira, Ana MM
    Mucientes, Gonzalo
    Santos, Antonio M
    Abascal, Francisco J
    Abercrombie, Debra L
    Abrantes, Katya
    Acuna-Marrero, David
    Afonso, Andre S
    Gustafson, Johan A
    et al.
    Griffith University Author(s)
    Gustafson, Johan A.
    Year published
    2019
    Metadata
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    Abstract
    © 2019, The Author(s), under exclusive licence to Springer Nature Limited. Effective ocean management and the conservation of highly migratory species depend on resolving the overlap between animal movements and distributions, and fishing effort. However, this information is lacking at a global scale. Here we show, using a big-data approach that combines satellite-tracked movements of pelagic sharks and global fishing fleets, that 24% of the mean monthly space used by sharks falls under the footprint of pelagic longline fisheries. Space-use hotspots of commercially valuable sharks and of internationally protected species had ...
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    © 2019, The Author(s), under exclusive licence to Springer Nature Limited. Effective ocean management and the conservation of highly migratory species depend on resolving the overlap between animal movements and distributions, and fishing effort. However, this information is lacking at a global scale. Here we show, using a big-data approach that combines satellite-tracked movements of pelagic sharks and global fishing fleets, that 24% of the mean monthly space used by sharks falls under the footprint of pelagic longline fisheries. Space-use hotspots of commercially valuable sharks and of internationally protected species had the highest overlap with longlines (up to 76% and 64%, respectively), and were also associated with significant increases in fishing effort. We conclude that pelagic sharks have limited spatial refuge from current levels of fishing effort in marine areas beyond national jurisdictions (the high seas). Our results demonstrate an urgent need for conservation and management measures at high-seas hotspots of shark space use, and highlight the potential of simultaneous satellite surveillance of megafauna and fishers as a tool for near-real-time, dynamic management.
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    Journal Title
    Nature
    Volume
    572
    Issue
    7770
    DOI
    https://doi.org/10.1038/s41586-019-1444-4
    Copyright Statement
    © 2019 Nature Publishing Group. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal website for access to the definitive, published version.
    Subject
    Environmental sciences
    Science & Technology
    Multidisciplinary Sciences
    Science & Technology - Other Topics
    IMPROVING LIGHT
    PELAGIC SHARKS
    Publication URI
    http://hdl.handle.net/10072/397542
    Collection
    • Journal articles

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