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8. 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
Full Text
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15. Littoral Water in Hong Kong as a Potential Transient Habitat for Juveniles of a Temperate Deepwater Gnomefish, Scombrops boops (Acropomatiformes: Scombropidae)

Author

Wei, Jiehong, Gu, Jiarui, Liu, Min, Lin, Bai-an, Lee, Gabriel Y., Wai, Tak-Cheung, Lam, Paul K.S., Yan, Meng, and Leung, Priscilla T.Y.

Subjects
Research Article
Abstract

A total of 40 juveniles belonging to a temperate deepwater gnomefish species, Scombrops boops, were sampled from littoral habitats (2–5 m depth) of eastern Hong Kong waters in April and May 2017 and March 2019. The presence of gnomefish juveniles in subtropical southern China is reported for the first time at a record low latitude of 22°11'–22°21'N. The specimens were identified based on the COI gene sequence. The genetic composition between Japan and Hong Kong gnomefish populations were compared by sequencing the mitochondrial Cytb gene, which showed no genetic differentiation. The juveniles ranged from 3.5–10.1 cm (n = 40) in total length, with 35 individuals caught from Sargassum beds and five from rocky reefs. Our findings highlighted that the littoral habitats in Hong Kong waters, in particular the seasonal Sargassum beds, are important for small juveniles of S. boops.

Published
2021

22. 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

23. 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

27. Littoral Water in Hong Kong as a Potential Transient Habitat for Juveniles of a Temperate Deepwater Gnomefish, Scombrops boops (Acropomatiformes: Scombropidae).

Author

Wei J, Gu J, Liu M, Lin BA, Lee GY, Wai TC, Lam PKS, Yan M, and Leung PTY

Abstract

A total of 40 juveniles belonging to a temperate deepwater gnomefish species, Scombrops boops , were sampled from littoral habitats (2-5 m depth) of eastern Hong Kong waters in April and May 2017 and March 2019. The presence of gnomefish juveniles in subtropical southern China is reported for the first time at a record low latitude of 22°11'-22°21'N. The specimens were identified based on the COI gene sequence. The genetic composition between Japan and Hong Kong gnomefish populations were compared by sequencing the mitochondrial Cyt b gene, which showed no genetic differentiation. The juveniles ranged from 3.5-10.1 cm ( n = 40) in total length, with 35 individuals caught from Sargassum beds and five from rocky reefs. Our findings highlighted that the littoral habitats in Hong Kong waters, in particular the seasonal Sargassum beds, are important for small juveniles of S. boops .

Published
2021
Full Text
View/download PDF

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