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1. A global perspective on the trophic geography of sharks

Author

Bird, Christopher S., Veríssimo, Ana, Magozzi, Sarah, Abrantes, Kátya G., Aguilar, Alex, Al-Reasi, Hassan, Barnett, Adam, Bethea, Dana M., Biais, Gérard, Borrell, Asuncion, Bouchoucha, Marc, Boyle, Mariah, Brooks, Edward J., Brunnschweiler, Juerg, Bustamante, Paco, Carlisle, Aaron, Catarino, Diana, Caut, Stéphane, Cherel, Yves, Chouvelon, Tiphaine, Churchill, Diana, Ciancio, Javier, Claes, Julien, Colaço, Ana, Courtney, Dean L., Cresson, Pierre, Daly, Ryan, de Necker, Leigh, Endo, Tetsuya, Figueiredo, Ivone, Frisch, Ashley J., Hansen, Joan Holst, Heithaus, Michael, Hussey, Nigel E., Iitembu, Johannes, Juanes, Francis, Kinney, Michael J., Kiszka, Jeremy J., Klarian, Sebastian A., Kopp, Dorothée, Leaf, Robert, Li, Yunkai, Lorrain, Anne, Madigan, Daniel J., Maljković, Aleksandra, Malpica-Cruz, Luis, Matich, Philip, Meekan, Mark G., Ménard, Frédéric, Menezes, Gui M., Munroe, Samantha E. M., Newman, Michael C., Papastamatiou, Yannis P., Pethybridge, Heidi, Plumlee, Jeffrey D., Polo-Silva, Carlos, Quaeck-Davies, Katie, Raoult, Vincent, Reum, Jonathan, Torres-Rojas, Yassir Eden, Shiffman, David S., Shipley, Oliver N., Speed, Conrad W., Staudinger, Michelle D., Teffer, Amy K., Tilley, Alexander, Valls, Maria, Vaudo, Jeremy J., Wai, Tak-Cheung, Wells, R. J. David, Wyatt, Alex S. J., Yool, Andrew, and Trueman, Clive N.

Published
2018
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3. Teleost and elasmobranch eye lenses as a target for life-history stable isotope analyses

Author

Quaeck-davies, Katie, Bendall, Victoria A., Mackenzie, Kirsteen, Hetherington, Stuart, Newton, Jason, Trueman, Clive N., Quaeck-davies, Katie, Bendall, Victoria A., Mackenzie, Kirsteen, Hetherington, Stuart, Newton, Jason, and Trueman, Clive N.

Abstract

Incrementally grown, metabolically inert tissues such as fish otoliths provide biochemical records that can used to infer behavior and physiology throughout the lifetime of the individual. Organic tissues are particularly useful as the stable isotope composition of the organic component can provide information about diet, trophic level and location. Unfortunately, inert, incrementally grown organic tissues are relatively uncommon. The vertebrate eye lens, however, is formed via sequential deposition of proteinfilled fiber cells, which are subsequently metabolically inert. Lenses therefore have the potential to serve as biochemical data recorders capturing life-long variations in dietary and spatial ecology. Here we review the state of knowledge regarding the structure and formation of fish eye lenses in the context of using lens tissue for retrospective isotopic analysis. We discuss the relationship between eye lens diameter and body size, describe the successful recovery of expected isotopic gradients throughout ontogeny and between species, and quantify the isotopic offset between lens protein and white muscle tissue. We show that fish eye lens protein is an attractive host for recovery of stable isotope life histories, particularly for juvenile life stages, and especially in elasmobranchs lacking otoliths, but interpretation of lens-based records is complicated by species-specific uncertainties associated with lens growth rates.

Published
2018
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4. A global perspective on the trophic geography of sharks

Author

Bird, C.S., Veríssimo, Ana, Magozzi, Sarah, Abrantes, K.G., Aguilar, Alex, Al-Reasi, Hassan, Barnett, Adam, Bethea, D.M., Biais, Gérard, Borrell, Asunción, Bouchoucha, Marc, Boyle, Mariah, Brooks, E.J., Brunnschweiler, Juerg, Bustamante, Paco, Carlisle, Aaron, Catarino, Diana, Caut, Stéphane, Cherel, Yves, Chouvelon, Tiphaine, Churchill, Diana, Ciancio, Javier, Claes, Julien, Colaço, Ana, Courtney, D.L., Cresson, Pierre, Daly, Ryan, De-Necker, Leigh, Endo, Tetsuya, Figueiredo, Ivone, Frisch, A.J., Hansen, Joan Holst, Heithaus, Michael, Hussey, N.E., Iitembu, Johannes, Juanes, Francis, Kinney, M.J., Kiszka, J.J., Klarian, S.A., Kopp, Dorothée, Leaf, Robert, Li, Yunkai, Lorrain, Anne, Madigan, D.J., Maljković, Aleksandra, Malpica-Cruz, Luis, Matich, Philip, Meekan, M.G., Ménard, Frédéric, Menezes, G.M., Munroe, A.E.M., Newman, M.C., Papastamatiou, Y.P., Pethybridge, Heidi, Plumlee, Polo-Silva, Carlos, Quaeck-Davies, Katie, Raoult, Vincent, Reum, Jonathan, Torres-Rojas, Yassir Eden, Shiffman, D.S., Shipley, O.N., Speed, C.W., Staudinger, Michelle D, Teffer, A.K., Tilley, Alexander, Valls-Mir, María, Vaudo, Tak-Cheung, Wai, Wells, R.J.D., Wyatt, A.S.J., Yool, Andrew, Trueman, C.N., Bird, C.S., Veríssimo, Ana, Magozzi, Sarah, Abrantes, K.G., Aguilar, Alex, Al-Reasi, Hassan, Barnett, Adam, Bethea, D.M., Biais, Gérard, Borrell, Asunción, Bouchoucha, Marc, Boyle, Mariah, Brooks, E.J., Brunnschweiler, Juerg, Bustamante, Paco, Carlisle, Aaron, Catarino, Diana, Caut, Stéphane, Cherel, Yves, Chouvelon, Tiphaine, Churchill, Diana, Ciancio, Javier, Claes, Julien, Colaço, Ana, Courtney, D.L., Cresson, Pierre, Daly, Ryan, De-Necker, Leigh, Endo, Tetsuya, Figueiredo, Ivone, Frisch, A.J., Hansen, Joan Holst, Heithaus, Michael, Hussey, N.E., Iitembu, Johannes, Juanes, Francis, Kinney, M.J., Kiszka, J.J., Klarian, S.A., Kopp, Dorothée, Leaf, Robert, Li, Yunkai, Lorrain, Anne, Madigan, D.J., Maljković, Aleksandra, Malpica-Cruz, Luis, Matich, Philip, Meekan, M.G., Ménard, Frédéric, Menezes, G.M., Munroe, A.E.M., Newman, M.C., Papastamatiou, Y.P., Pethybridge, Heidi, Plumlee, Polo-Silva, Carlos, Quaeck-Davies, Katie, Raoult, Vincent, Reum, Jonathan, Torres-Rojas, Yassir Eden, Shiffman, D.S., Shipley, O.N., Speed, C.W., Staudinger, Michelle D, Teffer, A.K., Tilley, Alexander, Valls-Mir, María, Vaudo, Tak-Cheung, Wai, Wells, R.J.D., Wyatt, A.S.J., Yool, Andrew, and Trueman, C.N.

Abstract

Sharks are a diverse group of mobile predators that forage across varied spatial scales and have the potential to influence food web dynamics. The ecological consequences of recent declines in shark biomass may extend across broader geographic ranges if shark taxa display common behavioural traits. By tracking the original site of photosynthetic fixation of carbon atoms that were ultimately assimilated into muscle tissues of 5,394 sharks from 114 species, we identify globally consistent biogeographic traits in trophic interactions between sharks found in different habitats. We show that populations of shelf-dwelling sharks derive a substantial proportion of their carbon from regional pelagic sources, but contain individuals that forage within additional isotopically diverse local food webs, such as those supported by terrestrial plant sources, benthic production and macrophytes. In contrast, oceanic sharks seem to use carbon derived from between 30° and 50° of latitude. Global-scale compilations of stable isotope data combined with biogeochemical modelling generate hypotheses regarding animal behaviours that can be tested with other methodological approaches

Published
2018

5. A global perspective on the trophic geography of sharks

Author

University of Southampton, Natural Environment Research Council (UK), Bird, Christopher Stephen, Veríssimo, Ana, Magozzi, Sarah, Abrantes, Kátya G., Aguilar, Alex, Al-Reasi, Hassan, Barnett, Adam, Bethea, Dana M., Biais, Gérard, Borrell, Asuncion, Bouchoucha, Marc, Boyle, Mariah, Brooks, Edward J., Brunnschweiler, Juerg, Bustamante, Paco, Carlisle, Aaron, Catarino, Diana, Caut, Stéphane, Cherel, Yves, Chouvelon, Tiphaine, Churchill, Diana, Ciancio, Javier, Claes, Julien, Colaço, Ana, Courtney, Dean L., Cresson, Pierre, Daly, Ryan, De Necker, Leigh, Endo, Tetsuya, Figueiredo, Ivone, Frisch, Ashley J., Hansen, Joan Holst, Heithaus, Michael, Hussey, Nigel E., Iitembu, Johannes, Juanes, Francis, Kinney, Michael J., Kiszka, Jeremy J., Klarian, Sebastian A., Kopp, Dorothée, Leaf, Robert, Li, Yunkai, Lorrain, Anne, Madigan, Daniel J., Maljković, Aleksandra, Malpica-Cruz, Luis, Matich, Philip, Meekan, Mark G., Ménard, Frédéric, Menezes, Gui M., Munroe, Samantha E.M., Newman, Michael C., Papastamatiou, Yannis P., Pethybridge, Heidi, Plumlee, Jeffrey D., Polo-Silva, Carlos, Quaeck-Davies, Katie, Raoult, Vincent, Reum, Jonathan, Torres-Rojas, Yassir Eden, Shiffman, David S., Shipley, Oliver N., Speed, Conrad W., Staudinger, Michelle D., Teffer, Amy K., Tilley, Alexander, Valls, Maria, Vaudo, Jeremy J., Wai, Tak-Cheung, Wells, R. J. David, Wyatt, Alex S. J., Yool, Andrew, Trueman, Clive N., University of Southampton, Natural Environment Research Council (UK), Bird, Christopher Stephen, Veríssimo, Ana, Magozzi, Sarah, Abrantes, Kátya G., Aguilar, Alex, Al-Reasi, Hassan, Barnett, Adam, Bethea, Dana M., Biais, Gérard, Borrell, Asuncion, Bouchoucha, Marc, Boyle, Mariah, Brooks, Edward J., Brunnschweiler, Juerg, Bustamante, Paco, Carlisle, Aaron, Catarino, Diana, Caut, Stéphane, Cherel, Yves, Chouvelon, Tiphaine, Churchill, Diana, Ciancio, Javier, Claes, Julien, Colaço, Ana, Courtney, Dean L., Cresson, Pierre, Daly, Ryan, De Necker, Leigh, Endo, Tetsuya, Figueiredo, Ivone, Frisch, Ashley J., Hansen, Joan Holst, Heithaus, Michael, Hussey, Nigel E., Iitembu, Johannes, Juanes, Francis, Kinney, Michael J., Kiszka, Jeremy J., Klarian, Sebastian A., Kopp, Dorothée, Leaf, Robert, Li, Yunkai, Lorrain, Anne, Madigan, Daniel J., Maljković, Aleksandra, Malpica-Cruz, Luis, Matich, Philip, Meekan, Mark G., Ménard, Frédéric, Menezes, Gui M., Munroe, Samantha E.M., Newman, Michael C., Papastamatiou, Yannis P., Pethybridge, Heidi, Plumlee, Jeffrey D., Polo-Silva, Carlos, Quaeck-Davies, Katie, Raoult, Vincent, Reum, Jonathan, Torres-Rojas, Yassir Eden, Shiffman, David S., Shipley, Oliver N., Speed, Conrad W., Staudinger, Michelle D., Teffer, Amy K., Tilley, Alexander, Valls, Maria, Vaudo, Jeremy J., Wai, Tak-Cheung, Wells, R. J. David, Wyatt, Alex S. J., Yool, Andrew, and Trueman, Clive N.

Abstract

Sharks are a diverse group of mobile predators that forage across varied spatial scales and have the potential to influence food web dynamics. The ecological consequences of recent declines in shark biomass may extend across broader geographic ranges if shark taxa display common behavioural traits. By tracking the original site of photosynthetic fixation of carbon atoms that were ultimately assimilated into muscle tissues of 5,394 sharks from 114 species, we identify globally consistent biogeographic traits in trophic interactions between sharks found in different habitats. We show that populations of shelf-dwelling sharks derive a substantial proportion of their carbon from regional pelagic sources, but contain individuals that forage within additional isotopically diverse local food webs, such as those supported by terrestrial plant sources, benthic production and macrophytes. In contrast, oceanic sharks seem to use carbon derived from between 30° and 50° of latitude. Global-scale compilations of stable isotope data combined with biogeochemical modelling generate hypotheses regarding animal behaviours that can be tested with other methodological approaches.

Published
2018

6. Data from: A global perspective on the trophic geography of sharks

Author

Bird, Christopher Stephen, Veríssimo, Ana, Magozzi, Sarah, Abrantes, Kátya G., Aguilar, Alex, Al-Reasi, Hassan, Barnett, Adam, Bethea, Dana M., Biais, Gérard, Borrell, Asuncion, Bouchoucha, Marc, Boyle, Mariah, Brooks, Edward J., Brunnschweiler, Juerg, Bustamante, Paco, Carlisle, Aaron, Catarino, Diana, Caut, Stéphane, Cherel, Yves, Chouvelon, Tiphaine, Churchill, Diana, Ciancio, Javier, Claes, Julien, Colaço, Ana, Courtney, Dean L., Cresson, Pierre, Daly, Ryan, De Necker, Leigh, Endo, Tetsuya, Figueiredo, Ivone, Frisch, Ashley J., Hansen, Joan Holst, Heithaus, Michael, Hussey, Nigel E., Iitembu, Johannes, Juanes, Francis, Kinney, Michael J., Kiszka, Jeremy J., Klarian, Sebastian A., Kopp, Dorothée, Leaf, Robert, Li, Yunkai, Lorrain, Anne, Madigan, Daniel J., Maljković, Aleksandra, Malpica-Cruz, Luis, Matich, Philip, Meekan, Mark G., Ménard, Frédéric, Menezes, Gui M., Munroe, Samantha E.M., Newman, Michael C., Papastamatiou, Yannis P., Pethybridge, Heidi, Plumlee, Jeffrey D., Polo-Silva, Carlos, Quaeck-Davies, Katie, Raoult, Vincent, Reum, Jonathan, Torres-Rojas, Yassir Eden, Shiffman, David S., Shipley, Oliver N., Speed, Conrad W., Staudinger, Michelle D., Teffer, Amy K., Tilley, Alexander, Valls, Maria, Vaudo, Jeremy J., Wai, Tak-Cheung, Wells, R. J. David, Wyatt, Alex S. J., Yool, Andrew, Trueman, Clive N., Bird, Christopher Stephen, Veríssimo, Ana, Magozzi, Sarah, Abrantes, Kátya G., Aguilar, Alex, Al-Reasi, Hassan, Barnett, Adam, Bethea, Dana M., Biais, Gérard, Borrell, Asuncion, Bouchoucha, Marc, Boyle, Mariah, Brooks, Edward J., Brunnschweiler, Juerg, Bustamante, Paco, Carlisle, Aaron, Catarino, Diana, Caut, Stéphane, Cherel, Yves, Chouvelon, Tiphaine, Churchill, Diana, Ciancio, Javier, Claes, Julien, Colaço, Ana, Courtney, Dean L., Cresson, Pierre, Daly, Ryan, De Necker, Leigh, Endo, Tetsuya, Figueiredo, Ivone, Frisch, Ashley J., Hansen, Joan Holst, Heithaus, Michael, Hussey, Nigel E., Iitembu, Johannes, Juanes, Francis, Kinney, Michael J., Kiszka, Jeremy J., Klarian, Sebastian A., Kopp, Dorothée, Leaf, Robert, Li, Yunkai, Lorrain, Anne, Madigan, Daniel J., Maljković, Aleksandra, Malpica-Cruz, Luis, Matich, Philip, Meekan, Mark G., Ménard, Frédéric, Menezes, Gui M., Munroe, Samantha E.M., Newman, Michael C., Papastamatiou, Yannis P., Pethybridge, Heidi, Plumlee, Jeffrey D., Polo-Silva, Carlos, Quaeck-Davies, Katie, Raoult, Vincent, Reum, Jonathan, Torres-Rojas, Yassir Eden, Shiffman, David S., Shipley, Oliver N., Speed, Conrad W., Staudinger, Michelle D., Teffer, Amy K., Tilley, Alexander, Valls, Maria, Vaudo, Jeremy J., Wai, Tak-Cheung, Wells, R. J. David, Wyatt, Alex S. J., Yool, Andrew, and Trueman, Clive N.

Abstract

Sharks are a diverse group of mobile predators that forage across varied spatial scales and have the potential to influence food web dynamics. The ecological consequences of recent declines in shark biomass may extend across broader geographic ranges if shark taxa display common behavioural traits. By tracking the original site of photosynthetic fixation of carbon atoms that were ultimately assimilated into muscle tissues of 5,394 sharks from 114 species, we identify globally consistent biogeographic traits in trophic interactions between sharks found in different habitats. We show that populations of shelf-dwelling sharks derive a substantial proportion of their carbon from regional pelagic sources, but contain individuals that forage within additional isotopically diverse local food webs, such as those supported by terrestrial plant sources, benthic production and macrophytes. In contrast, oceanic sharks seem to use carbon derived from between 30° and 50° of latitude. Global-scale compilations of stable isotope data combined with biogeochemical modelling generate hypotheses regarding animal behaviours that can be tested with other methodological approaches.

Published
2018

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