Global spatial risk assessment of sharks under the footprint of fisheries

Bonnie J Holmes; See article text for complete listing of authors.

doi:10.1038/s41586-019-1444-4

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Global spatial risk assessment of sharks under the footprint of fisheries

Journal article

Peer reviewed

Global spatial risk assessment of sharks under the footprint of fisheries

Bonnie J Holmes and See article text for complete listing of authors.

Nature, Vol.572, pp.461-466

2019

DOI: https://doi.org/10.1038/s41586-019-1444-4

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Abstract

commercial species

conservation management

fishery

fishing effort

global perspective

longlining

migratory species

pelagic fish

risk assessment

shark

spatial analysis

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.

Details

Title: Global spatial risk assessment of sharks under the footprint of fisheries
Authors: Bonnie J Holmes (Author) - University of Queensland
See article text for complete listing of authors. (Author)
Publication details: Nature, Vol.572, pp.461-466
Publisher: Nature Publishing Group
Date published: 2019
DOI: 10.1038/s41586-019-1444-4
ISSN: 0028-0836; 0028-0836
Grants: Movement patterns of marine megafauna at unprecedented global scales, DE170100841 , Australian Research Council (Australia, Canberra) - ARC
Organisation Unit: School of Science and Engineering - Legacy; School of Science, Technology and Engineering
Language: English
Record Identifier: 99450957902621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Ecology

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