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2. Reply to: Shark mortality cannot be assessed by fishery overlap alone

Author

Queiroz, Nuno, Humphries, Nicolas E., Couto, Ana, Vedor, Marisa, da Costa, Ivo, Sequeira, Ana M. M., Mucientes, Gonzalo, Santos, António M., Abascal, Francisco J., Abercrombie, Debra L., Abrantes, Katya, Acuña-Marrero, David, Afonso, André 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, Cortés, 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, Fábio 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., Joyce, Warren, Keating Daly, Clare A., 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., Meÿer, Michael A., Morris, John J., Nelson, Emily R., Papastamatiou, Yannis P., Peñaherrera-Palma, Cesar, 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., 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, Zárate, 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., and Sims, David W.

Published
2021
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3. Reply to: Caution over the use of ecological big data for conservation

Author

Queiroz, Nuno, Humphries, Nicolas E., Couto, Ana, Vedor, Marisa, da Costa, Ivo, Sequeira, Ana M. M., Mucientes, Gonzalo, Santos, António M., Abascal, Francisco J., Abercrombie, Debra L., Abrantes, Katya, Acuña-Marrero, David, Afonso, André 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, Braun, Camrin D., Brooks, Edward J., Brooks, Annabelle, Brown, Judith, 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, Cortés, 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, Fábio 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., Joyce, Warren, Keating Daly, Clare A., 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., Meÿer, Michael A., Morris, John J., Nelson, Emily R., Papastamatiou, Yannis P., Peñaherrera-Palma, Cesar, 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., 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, Zárate, 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., and Sims, David W.

Published
2021
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6. Synergetic impacts of turbulence and fishing reduce ocean biomass

Author

McKerral, Jody C., primary, Seymour, Justin R., additional, Lavery, Trish J., additional, Rogers, Paul J., additional, Jeffries, Thomas C., additional, Paterson, James S., additional, Roudnew, Ben, additional, Huveneers, Charlie, additional, Newton, Kelly, additional, van Dongen-Vogels, Virginie, additional, Cribb, Nardi P., additional, Winn, Karina M., additional, Smith, Renee J., additional, Beckmann, Crystal L., additional, Prime, Eloise, additional, Charlton, Claire M., additional, Kleshnina, Maria, additional, Grigson, Susanna R., additional, Takeuchi, Marika, additional, Seuront, Laurent, additional, and Mitchell, James G., additional

Published
2021
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7. The effects of cage-diving activities on the fine-scale swimming behaviour and space use of white sharks

Author

Huveneers, Charlie, Rogers, Paul J., Beckmann, Crystal, Semmens, Jayson M., Bruce, Barry D., and Seuront, Laurent

Subjects
Ecotourism -- Research, White shark -- Research, Animal spatial behavior -- Research, Biological sciences
Abstract

Wildlife tourism has become increasingly popular and is one of the fastest growing sectors of the tourism industry. A radio-acoustic positioning system was deployed to monitor the fine-scale movements of 21 white sharks (Carcharodon carcharias) and investigate the effects of shark cage-diving activities on their swimming behaviour and space use. This study contributes towards improving our understanding of the complex relationship between wildlife tourism and its effects on sharks, and assesses how tourism targeting sharks affects behaviour at a finer spatial scale than previously investigated. Our study demonstrated that shark cage-diving operators (SCDO) influenced the fine-scale three-dimensional spatial distribution and the rate of movement of white sharks at the Neptune Islands. White sharks stayed more than 30 m away from the SCDO on 21 % of the days detected, but spent a significant amount of time in close proximity to the SCDO on the remaining days. Individual variation was detected, with some sharks behaviourally responding to SCDO more than others. The degree of variation between individual sharks and the different levels of interaction (e.g. presence, proximity to SCDO, and consumption of tethered bait) highlights the complexity of the relationships between SCDO and the effects on sharks. To improve our understanding of these relationships, future monitoring of shark cage-diving operations requires proximity to SCDO to be recorded in addition to the presence within the area. Further work is needed to assess whether the observed behavioural changes would affect individual fitness and ultimately population viability, which are critical information to unambiguously assess the potential impacts of wildlife tourism targeting sharks., Introduction Globally, wildlife tourism is considered one of the fastest growing sectors of the tourism industry (Scheyvens 1999; Wearing and Neil 2009). One of the main arguments for the continuing [...]

Published
2013
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11. Global spatial risk assessment of sharks under the footprint of fisheries

Author

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., 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., and Sims, David W.

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.

Published
2019
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12. Global spatial risk assessment of sharks under the footprint of fisheries

Author

Natural Environment Research Council (UK), Save Our Seas Foundation, European Commission, Fundação para a Ciência e a Tecnologia (Portugal), Fundação de Apoio à Pesquisa do Rio Grande do Norte, Xunta de Galicia, Australian Respiratory Council, Australian Institute of Marine Science, Queiroz, Nuno, Humphries, Nicolas E., Couto, Ana, Vedor, Marisa, Costa, Ivo da, Sequeira, Ana M. M., Mucientes, Gonzalo, Santos, António M., Abascal, Francisco J., Abercrombie, Debra L., Abrantes, Katya, McAuley, Rory, White, Timothy D., Block, Barbara A., Bradford, Russel W., Brooks, Annabelle, Cortés, Daniel Devia, Macena, Bruno C. L., Rogers, Paul J., Bessudo Lion, Sandra, Berumen, Michael L., Hazin, Fábio H. V., Marshall, Heather, Shillinger, George, Travassos, Paulo, Barnett, Adam, Carlisle, Aaron B., Harcourt, Robert, Campana, Steven E., Fischer, G. Chris, Bezerra, Natalia P. A., Brown, Judith, Doyle, Thomas K., Chapman, Demian D., Bond, Mark E., Southall, Emily J., Braun, Camrin D., Dagorn, Laurent, Richardson, Andrew J., Cochran, Jesse E. M., Bruce, Barry D., Goldsworthy, Simon D., Watanabe, Yuuki Y., Fowler, Mark, Chapple, Taylor K., Sheaves, Marcus, Bonfil, Ramón, Crochelet, Estelle C., Duarte, Carlos M., Brooks, Edward J., Ferreira, Luciana C., Quintero, Lina Maria, Smale, Malcolm J., Pierce, Simon J., Semmens, Jayson M., Ferretti, Francesco, Thums, Michele, Wetherbee, Bradley M., Gennari, Enrico, Forget, Fabian, Chisholm, John, Clarke, Christopher R., Stehfest, Kilian M., Drew, Michael, Klimley, Peter A., Peñaherrera-Palma, Cesar, Harman, Luke, Hammerschlag, Neil, Daly, Ryan, Poisson, Francois, Filmalter, John D., Duffy, Clinton A. J., Heard, Matthew, Erikson, Thor, Zárate, Patricia M., Hussey, Nigel E., Hearn, Alex R., Soria, Marc, Samoilys, Melita, Guttridge, Tristan L., Espinoza, Eduardo, Green, Jonathan R., Fitzpatrick, Richard, Gustafson, Johan A., Hueter, Robert E., Skomal, Gregory B., Patterson, Toby A., Simpson, Samantha J., Gollock, Matthew J., Kock, Alison A., Fontes, Jorges, Guzman, Hector M., Huveneers, Charlie, Lea, James S. E., Vandeperre, Frederic, Francis, Malcolm P., Gallagher, Austin J., Lana, Fernando O., Eguíluz, Víctor M., Pepperell, Julian G., Tolotti, Mariana T., Jewell, Oliver J. D., Meekan, Mark G., Nelson, Emily R., Singh, Sarika, Joyce, Warran, MacDonnell, Anna, Johnson, Ryan, McAllister, Jaime D., Ketchum, James T., Blaison, Antonin V., Holdsworth, John C., Meÿer, Michael A., Jordan, Lance K. B., Holmes, Bonnie J., Thorrold, Simon R., Howey, Lucy A., Keating Daly, Clare A., Bernal, Diego, Jorgensen, Salvador J., Ladino, Felipe, Hoyos, Hoyos, Rowat, David R. L., Sims, David W., Shivji, Mahmood, Morris, John J., Irion, David T., Llewellyn, Fiona, Arauz, Randall, Stevens, John D., Araujo, Gonzalo, Jacoby, David M. P., Tyminski, John P., Papastamatiou, Yannis P., Bach, Pascal, Soler, German, Lyon, Warrick S., Rohner, Christoph A., Sousa, Lara L., Weber, Sam B., Byrne, Michael E., Afonso, Pedro, Koen, Pieter, Acuña-Marrero, David, Towner, Alison, Afonso, André S., Irigoien, Xabier, Williams, Sean, Hays, Graeme C., Snyders, Laurenne B., Clua, Eric, Anders, Darrell, Vaudo, Jeremy J., Natural Environment Research Council (UK), Save Our Seas Foundation, European Commission, Fundação para a Ciência e a Tecnologia (Portugal), Fundação de Apoio à Pesquisa do Rio Grande do Norte, Xunta de Galicia, Australian Respiratory Council, Australian Institute of Marine Science, Queiroz, Nuno, Humphries, Nicolas E., Couto, Ana, Vedor, Marisa, Costa, Ivo da, Sequeira, Ana M. M., Mucientes, Gonzalo, Santos, António M., Abascal, Francisco J., Abercrombie, Debra L., Abrantes, Katya, McAuley, Rory, White, Timothy D., Block, Barbara A., Bradford, Russel W., Brooks, Annabelle, Cortés, Daniel Devia, Macena, Bruno C. L., Rogers, Paul J., Bessudo Lion, Sandra, Berumen, Michael L., Hazin, Fábio H. V., Marshall, Heather, Shillinger, George, Travassos, Paulo, Barnett, Adam, Carlisle, Aaron B., Harcourt, Robert, Campana, Steven E., Fischer, G. Chris, Bezerra, Natalia P. A., Brown, Judith, Doyle, Thomas K., Chapman, Demian D., Bond, Mark E., Southall, Emily J., Braun, Camrin D., Dagorn, Laurent, Richardson, Andrew J., Cochran, Jesse E. M., Bruce, Barry D., Goldsworthy, Simon D., Watanabe, Yuuki Y., Fowler, Mark, Chapple, Taylor K., Sheaves, Marcus, Bonfil, Ramón, Crochelet, Estelle C., Duarte, Carlos M., Brooks, Edward J., Ferreira, Luciana C., Quintero, Lina Maria, Smale, Malcolm J., Pierce, Simon J., Semmens, Jayson M., Ferretti, Francesco, Thums, Michele, Wetherbee, Bradley M., Gennari, Enrico, Forget, Fabian, Chisholm, John, Clarke, Christopher R., Stehfest, Kilian M., Drew, Michael, Klimley, Peter A., Peñaherrera-Palma, Cesar, Harman, Luke, Hammerschlag, Neil, Daly, Ryan, Poisson, Francois, Filmalter, John D., Duffy, Clinton A. J., Heard, Matthew, Erikson, Thor, Zárate, Patricia M., Hussey, Nigel E., Hearn, Alex R., Soria, Marc, Samoilys, Melita, Guttridge, Tristan L., Espinoza, Eduardo, Green, Jonathan R., Fitzpatrick, Richard, Gustafson, Johan A., Hueter, Robert E., Skomal, Gregory B., Patterson, Toby A., Simpson, Samantha J., Gollock, Matthew J., Kock, Alison A., Fontes, Jorges, Guzman, Hector M., Huveneers, Charlie, Lea, James S. E., Vandeperre, Frederic, Francis, Malcolm P., Gallagher, Austin J., Lana, Fernando O., Eguíluz, Víctor M., Pepperell, Julian G., Tolotti, Mariana T., Jewell, Oliver J. D., Meekan, Mark G., Nelson, Emily R., Singh, Sarika, Joyce, Warran, MacDonnell, Anna, Johnson, Ryan, McAllister, Jaime D., Ketchum, James T., Blaison, Antonin V., Holdsworth, John C., Meÿer, Michael A., Jordan, Lance K. B., Holmes, Bonnie J., Thorrold, Simon R., Howey, Lucy A., Keating Daly, Clare A., Bernal, Diego, Jorgensen, Salvador J., Ladino, Felipe, Hoyos, Hoyos, Rowat, David R. L., Sims, David W., Shivji, Mahmood, Morris, John J., Irion, David T., Llewellyn, Fiona, Arauz, Randall, Stevens, John D., Araujo, Gonzalo, Jacoby, David M. P., Tyminski, John P., Papastamatiou, Yannis P., Bach, Pascal, Soler, German, Lyon, Warrick S., Rohner, Christoph A., Sousa, Lara L., Weber, Sam B., Byrne, Michael E., Afonso, Pedro, Koen, Pieter, Acuña-Marrero, David, Towner, Alison, Afonso, André S., Irigoien, Xabier, Williams, Sean, Hays, Graeme C., Snyders, Laurenne B., Clua, Eric, Anders, Darrell, and Vaudo, Jeremy J.

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.

Published
2019

13. Quantitation of regional ejection fractions using, gated tomographic imaging with [sup.99m]Tc-Sestamibi *

Author

Lapeyre, III, Andre C., Klodas, Elizabeth, Rogers, Paul J., Sinak, Lawrence J., Hammell, Thomas C., O'Connor, Michael K., and Gibbons, Raymond J.

Subjects
Heart attack -- Risk factors -- Diagnosis -- Care and treatment, Cardiac output -- Usage, SPECT imaging -- Usage, Health, Diagnosis, Care and treatment, Usage, Risk factors
Abstract

Background: Gated single photon emission CT (SPECT) sestamibi imaging allows the simultaneous assessment of myocardial perfusion and left ventricular function. Objective: The purpose of this study was to evaluate a [...]

Published
2005

14. Global spatial risk assessment of sharks under the footprint of fisheries

Author

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

Published
2019
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16. Population Connectivity of the Highly Migratory Shortfin Mako (Isurus oxyrinchus Rafinesque 1810) and Implications for Management in the Southern Hemisphere

Author

Corrigan, Shannon, primary, Lowther, Andrew D., additional, Beheregaray, Luciano B., additional, Bruce, Barry D., additional, Cliff, Geremy, additional, Duffy, Clinton A., additional, Foulis, Alan, additional, Francis, Malcolm P., additional, Goldsworthy, Simon D., additional, Hyde, John R., additional, Jabado, Rima W., additional, Kacev, Dovi, additional, Marshall, Lindsay, additional, Mucientes, Gonzalo R., additional, Naylor, Gavin J. P., additional, Pepperell, Julian G., additional, Queiroz, Nuno, additional, White, William T., additional, Wintner, Sabine P., additional, and Rogers, Paul J., additional

Published
2018
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20. Plasticity in the diel vertical movement of two pelagic predators (<italic>Prionace glauca</italic> and <italic>Alopias vulpinus</italic>) in the southeastern Indian Ocean.

Author

Heard, Matthew, Rogers, Paul J., Bruce, Barry D., Humphries, Nicolas E., and Huveneers, Charlie

Subjects
*BLUE shark, *PREDATION, *ANIMAL mechanics, *SPECIES distribution, *TELEMETRY
Abstract

Abstract: Management and conservation of marine predator species relies on a fundamental knowledge of their movements and behaviour. Pop‐up satellite archival tags were used to investigate the vertical movement patterns of five blue sharks (Prionace glauca) and one thresher shark (Alopias vulpinus) within the southeastern Indian Ocean. Sections of similar depth distribution, identified using a split moving window analysis, were investigated in relation to the thermal structure of the water column and activity rates. Minimum horizontal displacement of between 66 and 5,187 km for blue sharks and 16 km for the thresher shark were recorded over 863 tracking days. Maximum depths ranged from 540 to 807 m for blue sharks and 144 m for the thresher shark. All sharks displayed plasticity in their depth distribution, with diel vertical movements and surface‐oriented movements the two most common patterns. Diel movement of prey is the most likely explanation for diel vertical movements of thresher and blue sharks. This study has improved our understanding of the vertical movement patterns of these pelagic predators and the relationship between their depth distribution, temperature, and activity. [ABSTRACT FROM AUTHOR]

Published
2018
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23. Trophodynamics of the eastern Great Australian Bight ecosystem: Ecological change associated with the growth of Australia's largest fishery

Author

Goldsworthy, Simon D., primary, Page, Brad, additional, Rogers, Paul J., additional, Bulman, Cathy, additional, Wiebkin, Annelise, additional, McLeay, Lachlan J., additional, Einoder, Luke, additional, Baylis, Alastair M.M., additional, Braley, Michelle, additional, Caines, Robin, additional, Daly, Keryn, additional, Huveneers, Charlie, additional, Peters, Kristian, additional, Lowther, Andrew D., additional, and Ward, Tim M., additional

Published
2013
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28. Pelagic ecology of a northern boundary current system: effects of upwelling on the production and distribution of sardine (Sardinops sagax), anchovy (Engraulis australis) and southern bluefin tuna (Thunnus maccoyii) in the Great Australian Bight

Author

WARD, TIM M., primary, MCLEAY, LACHLAN J., additional, DIMMLICH, WETJENS F., additional, ROGERS, PAUL J., additional, MCCLATCHIE, SAM, additional, MATTHEWS, ROGER, additional, KÄMPF, JOCHEN, additional, and VAN RUTH, PAUL D., additional

Published
2006
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33. Effects of an Electric Field on White Sharks: In Situ Testing of an Electric Deterrent

Author

Huveneers, Charlie, Rogers, Paul J., Semmens, Jayson M., Beckmann, Crystal, Kock, Alison A., Page, Brad, and Goldsworthy, Simon D.

Subjects
*WHITE shark, *ELECTRIC fields, *ELECTROMAGNETIC fields, *CHONDRICHTHYES, *ELECTROPHYSIOLOGY, *MARINE biology, *VETERINARY medicine, *ANIMAL behavior
Abstract

Elasmobranchs can detect minute electromagnetic fields, <1 nVcm–1, using their ampullae of Lorenzini. Behavioural responses to electric fields have been investigated in various species, sometimes with the aim to develop shark deterrents to improve human safety. The present study tested the effects of the Shark Shield Freedom7™ electric deterrent on (1) the behaviour of 18 white sharks (Carcharodon carcharias) near a static bait, and (2) the rates of attacks on a towed seal decoy. In the first experiment, 116 trials using a static bait were performed at the Neptune Islands, South Australia. The proportion of baits taken during static bait trials was not affected by the electric field. The electric field, however, increased the time it took them to consume the bait, the number of interactions per approach, and decreased the proportion of interactions within two metres of the field source. The effect of the electric field was not uniform across all sharks. In the second experiment, 189 tows using a seal decoy were conducted near Seal Island, South Africa. No breaches and only two surface interactions were observed during the tows when the electric field was activated, compared with 16 breaches and 27 surface interactions without the electric field. The present study suggests that the behavioural response of white sharks and the level of risk reduction resulting from the electric field is contextually specific, and depends on the motivational state of sharks. [ABSTRACT FROM AUTHOR]

Published
2013
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34. Broad-scale movements and pelagic habitat of the dusky shark Carcharhinus obscurus off Southern Australia determined using pop-up satellite archival tags.

Author

Rogers, Paul J., Huveneers, Charlie, Goldsworthy, Simon D., Mitchell, James G., and Seuront, Laurent

Subjects
*PELAGIC fishes, *HABITATS, *CARCHARHINUS obscurus, *NATURAL satellites, *CONTINENTAL shelf, *CARCHARHINIDAE
Abstract

We investigated the broad-scale movements and pelagic habitats of large juvenile dusky sharks ( Carcharhinus obscurus) off Southern Australia. Pop-up satellite archival tags ( PSATs) were deployed on three large juvenile dusky sharks (∼2.2-2.6 m total length) for 6 months in Spencer Gulf during 2010. Tagged dusky sharks all migrated westward and across the Great Australian Bight ( GAB) during autumn to offshore shelf waters off Western Australia. Estimated minimum distances travelled ranged from 1760 to 2736 km. Depths occupied by tagged dusky sharks ranged from the surface to 355 m. The most common thermal ranges occupied were 19-22°C. Broad-scale movements of large juvenile dusky sharks across the continental shelves combined with periods of residency in semi-protected gulf waters indicated that a multi-jurisdictional management approach may be appropriate for this species. [ABSTRACT FROM AUTHOR]

Published
2013
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37. Quantitation of Regional Ejection Fractions Using Gated Tomographic Imaging With 99mTc-Sestamibi.

Author

Lapeyre III, André C., Klodas, Elizabeth, Rogers, Paul J., Sinak, Lawrence J., Hammell, Thomas C., O'Connor, Michael K., and Gibbons, Raymond J.

Subjects
MYOCARDIAL infarction, CORONARY disease, HEART diseases, CARDIAC imaging, HEART disease diagnosis, ECHOCARDIOGRAPHY, CARDIOGRAPHY
Abstract

Background: Gated single photon emission CT (SPECT) sestamibi imaging allows the simultaneous assessment of myocardial perfusion and left ventricular function. Objective: The purpose of this study was to evaluate a technique for quantitative regional wall motion assessment using gated SPECT 99mTc-sestamibi imaging. Patients and interventions: Fourteen subjects without cardiac pathology and 25 patients who had experienced myocardial infarction (MI) were studied. After tomographic reconstruction of gated short-axis slices, the identification of endocardial borders was made using a standard edge-detection program in systole and diastole in each of five selected slices. Regional ejection fraction (EF) and myocardial perfusion were determined for five regions within each slice. Ten patients underwent echocardiographic regional wall-motion analysis, the results of which were compared to corresponding regional EF results. Results: High interobserver reproducibility in the assessment of regional EFs was found, with r values ranging from 0.94 to 0.98. In patients with anterior and inferior MIs, the regional EFs were abnormal in the anterior and septal regions, and the inferior and lateral regions, respectively. The regional EFs correlated significantly with regional perfusion in the anterior walls (r = 0.71; p = 0.0001), the lateral walls (r = 0.66; p = 0.0001), and inferior walls (r = 0.54; p = 0.0004). There was a significant association between the regional EFs and the echocardiographic regional wall motion assessment at the base (p < 0.0001), mid-ventricle (p = 0.0004), and apex (p = 0.0003). Conclusions: Gated SPECT images obtained 99mTc-sestamibi can provide reproducible quantitative, segmental regional EFs for multiple left ventricular slices that are significantly associated with subjective regional wall motion assessment by echocardiography. [ABSTRACT FROM AUTHOR]

Published
2005
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40. Assessment of myocardial perfusion by videodensitometry in the canine model

Author

Nishimura, Rick A., Rogers, Paul J., Holmes, David R., Gehring, Dale G., and Bove, Alfred A.

Abstract

Assessment of the functional severity of coronary stenoses has become increasingly important as the intrinsic limitations of coronary angiography have been documented. Videodensitometric coronary flow reserve has been proposed as a means to assess the physiologic significance of a coronary stenosis in humans. This study compared videodensitometric assessment of coronary flow with microsphere quantitation in the closed chest canine model.

Published
1987
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41. The good, the God and the guillotine

Author

Westerside, Andrew, Petralia, Peter, Lees, Gillian, Van de Cruys, Leentje, Blain, Martin, Rogers, Paul J., Donovan, Nicholas, Turner, Jane, Makus, Rebecca M. K., Gregory, Adam Y., McBride, David, Westerside, Andrew, Petralia, Peter, Lees, Gillian, Van de Cruys, Leentje, Blain, Martin, Rogers, Paul J., Donovan, Nicholas, Turner, Jane, Makus, Rebecca M. K., Gregory, Adam Y., and McBride, David

Abstract

A show that steals its style from the gig, the opera and the recital, The Good, the God and the Guillotine is a music-driven piece of theatre like no other. A long walk, the beach. A fight, a murder. The heat, and the barking of dogs. We’re travelling out of the sun and towards darkness. Three performers and three laptop musicians create an atmospheric, cross-genre journey through a tangle of relationships and technologies, all set against reactive objects, lights and hand-drawn animations. Proto-type Theater, collaborating with the musician/composers of MMUle, lighting designer Rebecca M. K. Makus and animator Adam York Gregory, present a performance sung and spoken across thirteen distinct chapters. The Good, the God and the Guillotine is a personal answer to the universal question, and was inspired by a reading of Albert Camus’ powerful 1942 novel The Stranger.

42. A machine they're secretly building

Author

Westerside, Andrew, Lees, Gillian, Baynton, Rachel, Rogers, Paul J., York Gregory, Adam, Westerside, Andrew, Lees, Gillian, Baynton, Rachel, Rogers, Paul J., and York Gregory, Adam

Abstract

From what might be a news desk, an office, a bedroom, a bunker under a mountain or a theatre, two people – reporters, senators, freedom fighters, or just… well… concerned citizens like you – think about what it is to speak up, speak out, blow the whistle and lift the veil. A MACHINE THEY’RE SECRETLY BUILDING charts a course from the Top Secret secrets of WWI intelligence (via the moon, 1972’s Chess World Championships, a disco in Oklahoma and the cafeteria at CERN) through to 9/11, the erosion of privacy, Edward Snowden and to the terror of a future that might already be upon us. Proto-type have combined original text and classified intelligence documents with film from digital artist Adam York Gregory, and music and sound design by Paul J. Rogers, to vent their frustration at the insidious machine of surveillance. A MACHINE THEY’RE SECRETLY BUILDING is about how we got to the point where our governments are spying on us and how that’s changing who we are.

48. Trophodynamics of the eastern Great Australian Bight ecosystem: ecological change associated with the growth of Australia's largest fishery

Author

Charlie Huveneers, Lachlan J. McLeay, Michelle Braley, Brad Page, Tim M. Ward, Andrew D. Lowther, Keryn Daly, C Bulman, Alastair M. M. Baylis, Annelise Wiebkin, Paul J. Rogers, Luke D. Einoder, Robin Caines, Simon D. Goldsworthy, Kristian J. Peters, Goldsworthy, Simon D, Page, Brad, Rogers, Paul J, Bulman, Cathy, Wiebkin, Annelise, McLeay, Lachlan J, Einoder, Luke, Baylis, Alastair MM, Braley, Michelle, Daly, Keryn, Huveneers, Charlie, Peters, Kristian, Lowther, Andrew D, and Ward, Tim M

Subjects
Ecosystem health, Biomass (ecology), Ecology, Sardinops sagax, Ecological Modeling, fishing impacts, Fishing, food web model, Eastern Great Australian Bight, sardine, Fishery, Geography, Ecopath with Ecosim, Forage fish, EcoSim, Ecosystem, Trophic level, Apex predator
Abstract

We used the Ecopath with Ecosim software to develop a trophic mass-balance model of the eastern Great Australian Bight ecosystem, off southern Australia. Results provide an ecosystem perspective of Australia's largest fishery, the South Australian sardine fishery, by placing its establishment and growth in the context of other dynamic changes in the ecosystem, including: the development of other fisheries; changing abundances of apex predator populations and oceanographic change. We investigated the potential impacts of the sardine fishery on high tropic level predators, particularly land-breeding seals and seabirds which may be suitable ecological performance indicators of ecosystem health. Results indicate that despite the rapid growth of the sardine fishery since 1991, there has likely been a negligible fishery impact on other modelled groups, suggesting that current levels of fishing effort are not impacting negatively on the broader ecosystem structure and function in the eastern Great Australian Bight. Results highlight the importance of small pelagic fish to higher trophic levels, the trophic changes that have resulted from loss and recovery of apex predator populations, and the potential pivotal role of cephalopod biomass in regulating 'bottom-up' trophic processes. The ability to resolve and attribute potential impacts from multiple fisheries, other human impacts and ecological change in this poorly understood region is highlighted by the study, and will be critical to ensure future ecologically sustainable development within the region. Refereed/Peer-reviewed

Published
2013

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