Subscribe to Journal
Get full journal access for 1 year
only $3.90 per issue
All prices are NET prices.
VAT will be added later in the checkout.
Tax calculation will be finalised during checkout.
Rent or Buy article
Get time limited or full article access on ReadCube.
All prices are NET prices.
To prepare Table 1 and linear regressions between North Atlantic annual shark landings (FAO total capture production) and shark FEI as calculated by Queiroz et al.1, FAO statistics available from http://www.fao.org/fishery/statistics/global-capture-production/query/es were used following the description of the data by Queiroz et al.1. To produce Table 2 and Fig. 1, data from Queiroz et al.1 were used from https://github.com/GlobalSharkMovement/GlobalSpatialRisk.
Queiroz, N. et al. Global spatial risk assessment of sharks under the footprint of fisheries. Nature 572, 461–466 (2019).
Hobday, A. J. et al. Ecological risk assessment for the effects of fishing. Fish. Res. 108, 372–384 (2011).
Gallagher, A. J., Kyne, P. M. & Hammerschlag, N. Ecological risk assessment and its application to elasmobranch conservation and management. J. Fish Biol. 80, 1727–1748 (2012).
Hilborn, R. & Walters, C. J. Quantitative Fisheries Stock Assessment, Choice, Dynamics and Uncertainty (Chapman and Hall, 1992).
Weng, K. C. & Block, B. A. Diel vertical migration of the bigeye thresher shark (Alopias superciliosus), a species possessing orbital retia mirabilia. Fish Bull. 102, 221–229 (2004).
Queiroz, N., Humphries, N. E., Noble, L. R., Santos, A. M. & Sims, D. W. Short-term movements and diving behaviour of satellite-tracked blue sharks Prionace glauca in the northeastern Atlantic Ocean. Mar. Ecol. Prog. Ser. 406, 265–279 (2010).
Cortés, E. et al. Expanded ecological risk assessment of pelagic sharks caught in Atlantic pelagic longline fisheries. Collect. Vol. Sci. Pap. ICCAT 71, 2637–2688 (2015).
Foster, D. G., Epperly, S. P., Shah, A. K. & Watson, J. W. Evaluation of hook and bait type on the catch rates in the Western North Atlantic Ocean pelagic longline fishery. Bull. Mar. Sci. 88, 529–545 (2012).
Cortés, E. et al. Ecological risk assessment of pelagic sharks caught in Atlantic pelagic longline fisheries. Aquat. Living Resour. 23, 25–34 (2010).
Ellis, J. R., McCully Phillips, S. R. & Poisson, F. A review of capture and post-release mortality of elasmobranchs. J. Fish Biol. 90, 653–722 (2017).
Gallagher, A. J., Orbesen, E. S., Hammerschlag, N. & Serafy, J. E. Vulnerability of oceanic sharks as pelagic longline bycatch. Glob. Ecol. Conserv. 1, 50–59 (2014).
Pacoureau, N. et al. Half a century of global decline in oceanic sharks and rays. Nature 589, 567–571 (2021).
Poisson, F. et al. Technical mitigation measures for sharks and rays in fisheries for tuna and tuna-like species: turning possibility into reality. Aquat. Living Resour. 29, 402 (2016).
Doherty, P. D. et al. Big catch, little sharks: insight into Peruvian small-scale longline fisheries. Ecol. Evol. 4, 2375–2383 (2014).
Alfaro-Shigueto, J. et al. Where small can have a large impact: structure and characterization of small-scale fisheries in Peru. Fish. Res. 106, 8–17 (2010).
R Core Team. R: A language and environment for statistical computing. http://www.R-project.org/ (R Foundation for Statistical Computing, 2019).
We thank M. J. Williams for useful suggestions on a previous version of the Comment, which were very helpful in improving the manuscript. The views expressed by E.C. herein are those of the author and do not necessarily reflect those of the agency of E.C.
The authors declare no competing interests.
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
About this article
Cite this article
Murua, H., Griffiths, S.P., Hobday, A.J. et al. Shark mortality cannot be assessed by fishery overlap alone. Nature 595, E4–E7 (2021). https://doi.org/10.1038/s41586-021-03396-4