Global spatial risk assessment of sharks under the footprint of fisheries

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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Queiroz Nuno, Humphries Nicolas E., Couto Ana, Vedor Marisa, Da Costa Ivo, Sequeira Ana M. M., Mucientes Gonzalo, Santos Antonio M, Abascal Francisco J., Abercrombie Debra L., Abrantes Katya, Acuna-Marrero David, Afonso Andre S., Afonso Pedro, Anders Darrell, Araujo Gonzalo, Arauz Randall, Bach Pascal, Barnett Adam, Bernal Diego, Berumen Michael L., Lion Sandra Bessudo, Bezerra Natalia P. A., Blaison Antonin V., Block Barbara A., Bond Mark E., Bonfil Ramon, Bradford Russell W., Braun Camrin D., Brooks Edward J., Brooks Annabelle, Brown Judith, Bruce Barry D., Byrne Michael E., Campana Steven E., Carlisle Aaron B., Chapman Demian D., Chapple Taylor K., Chisholm John, Clarke Christopher R., Clua Eric G., Cochran Jesse E. M., Crochelet Estelle C., Dagorn Laurent, Daly Ryan, Cortes Daniel Devia, Doyle Thomas K., Drew Michael, Duffy Clinton A. J., Erikson Thor, Espinoza Eduardo, Ferreira Luciana C., Ferretti Francesco, Filmalter John D., Fischer G. Chris, Fitzpatrick Richard, Fontes Jorge, Forget Fabien, Fowler Mark, Francis Malcolm P., Gallagher Austin J., Gennari Enrico, Goldsworthy Simon D., Gollock Matthew J., Green Jonathan R., Gustafson Johan A., Guttridge Tristan L., Guzman Hector M., Hammerschlag Neil, Harman Luke, Hazin Fabio H. V., Heard Matthew, Hearn Alex R., Holdsworth John C., Holmes Bonnie J., Howey Lucy A., Hoyos Mauricio, Hueter Robert E., Hussey Nigel E., Huveneers Charlie, Irion Dylan T., Jacoby David M. P., Jewell Oliver J. D., Johnson Ryan, Jordan Lance K. B., Jorgensen Salvador J., Joyce Warren, Daly Clare A. Keating, Ketchum James T., Klimley A. Peter, Kock Alison A., Koen Pieter, Ladino Felipe, Lana Fernanda O., Lea James S. E., Llewellyn Fiona, Lyon Warrick S., Macdonnell Anna, Macena Bruno C. L., Marshall Heather, McAllister Jaime D., McAuley Rory, Meyer Michael A., Morris John J., Nelson Emily R., Papastamatiou Yannis P., Patterson Toby A., Penaherrera-Palma Cesar, Pepperell Julian G., Pierce Simon J., Poisson Francois, Quintero Lina Maria, Richardson Andrew J., Rogers Paul J., Rohner Christoph A., Rowat David R. L., Samoilys Melita, Semmens Jayson M., Sheaves Marcus, Shillinger George, Shivji Mahmood, Singh Sarika, Skomal Gregory B., Smale Malcolm J., Snyders Laurenne B., Soler German, Soria Marc, Stehfest Kilian M., Stevens John D., Thorrold Simon R., Tolotti Mariana T., Towner Alison, Travassos Paulo, Tyminski John P., Vandeperre Frederic, Vaudo Jeremy J., Watanabe Yuuki Y., Weber Sam B., Wetherbee Bradley M., White Timothy D., Williams Sean, Zarate Patricia M., Harcourt Robert, Hays Graeme C., Meekan Mark G., Thums Michele, Irigoien Xabier, Eguiluz Victor M., Duarte Carlos M., Sousa Lara L., Simpson Samantha J., Southall Emily J., Sims David W. (2019). Global spatial risk assessment of sharks under the footprint of fisheries. Nature. 572 (7770). 461-466.,

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