Global spatial risk assessment of sharks under the footprint of fisheries

Queiroz, N. and Jacoby, David (2019) Global spatial risk assessment of sharks under the footprint of fisheries. Nature, 572. pp. 461-466. ISSN 0028-0836

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Abstract

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.

Item Type:
Journal Article
Journal or Publication Title:
Nature
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1000
Subjects:
ID Code:
165449
Deposited By:
Deposited On:
04 Feb 2022 15:30
Refereed?:
Yes
Published?:
Published
Last Modified:
03 May 2022 04:25