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1. Current methods and best practice recommendations for skate and ray (Batoidea) research: capture, handling, anaesthesia, euthanasia, and tag attachment

Author

Orrell, Danielle L., Andrzejaczek, Samantha, Armstrong, Asia O., Barbosa Martins, Ana, Branco, Ilka, Charvet, Patricia, Chin, Andrew, Elston, Chantel, Espinoza, Mario, Greenway, Eleanor S. I., McCully Phillips, Sophy R., Mickle, Megan F., Murray, Taryn S., Silva, Joana F., Thorburn, James, and Wosnick, Natascha

Published
2025
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2. Preliminary Insights on the Habitat Use and Vertical Movements of the Pelagic Stingray (Pteroplatytrygon violacea) in the Western Mediterranean Sea.

Author

Poisson, François, Ellis, Jim R., and McCully Phillips, Sophy R.

Subjects
STINGRAYS, SEXUAL cycle, CONTINENTAL shelf, AUTUMN, HABITATS
Abstract

Pelagic stingray (Pteroplatytrygon violacea) is the only species of stingray (Dasyatidae) that utilizes both pelagic and demersal habitats. It is the main bycatch species in pelagic longline fisheries targeting bluefin tuna (Thunnus thynnus) in the Gulf of Lions. In the Mediterranean Sea, their stock structure, behavioural ecology and movements are unknown. For the first time in the Mediterranean, 17 individuals (39–60 cm disc width) were tagged with pop-up satellite archival transmitting tags using a novel method of tag attachment to investigate horizontal and vertical movements. The tags were attached for between two and 60 days. Between the months of July and October, pelagic stingray occupied a temperature range of 12.5–26.6 °C, and a depth range extending from the surface to 480 m. Monthly trends in catch-per-unit-effort (CPUE) of pelagic stingray peaked in August and decreased by late autumn. Pelagic stingray may aggregate on the continental shelf during summer and move southwards in early autumn, and this movement pattern is considered in relation to the reproductive cycle and overwintering. At-vessel mortality was low, but there was varying evidence of post-release mortality, indicating the need for further work. Future work and options for bycatch mitigation are also discussed. [ABSTRACT FROM AUTHOR]

Published
2024
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3. The distribution of the juvenile stages and eggcases of skates (Rajidae) around the British Isles.

Author

Ellis, Jim R., Gordon, Cat A., Allen, Harriet L., Silva, Joana F., Bird, Christopher, Johnston, Graham, O'Connor, Bríd, McCully Phillips, Sophy R., and Hood, Ali

Subjects
OCEAN zoning, SPAWNING, WILDLIFE conservation, FISHERY management, CITIZEN science, FISHERIES
Abstract

Skates (Rajidae) include species of conservation and commercial importance, but there is limited information regarding their ecologically important habitats, including spawning and nursery areas, in northern European seas.Data on the distribution, relative abundance and length composition of skates were collated from scientific trawl surveys, and based on length‐frequency information, length‐at‐hatching and length‐at‐maturity, skates were allocated to length‐based categories representing early‐juvenile stages (EJS) and mid‐juvenile stages (MJS).Citizen science data were used to inform on the occurrence of eggcases. The Great Eggcase Hunt (starting in 2003) citizen science recording project collects georeferenced data for elasmobranch eggcases, primarily from around the British Isles. This provided verified species‐specific data for a total of 227,407 specimens from 11 skate species. Purse Search Ireland (starting in 2005) provided a further 2491 records of 10 skate species from around Ireland.The most frequently observed skate eggcases were from the genus Raja and occurred around much of the British Isles. The EJS and MJS of such species were observed most frequently in inshore waters. Data for EJS were more limited for Raja microocellata and Raja undulata, indicating that the EJS of these species occur in shallower (<20 m) waters.Juveniles of the genus Leucoraja occurred further offshore. Only the eggcases of Leucoraja naevus were recorded regularly, with the eggcase of Leucoraja fullonica described here.The data collated here provide an overview of skate spawning and nursery areas, thus informing fisheries management and marine spatial planning, including the identification and delineation of Important Shark and Ray Areas (ISRAs). [ABSTRACT FROM AUTHOR]

Published
2024
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5. Diving into the vertical dimension of elasmobranch movement ecology

Author

Andrzejaczek, Samantha, primary, Lucas, Tim C.D., additional, Goodman, Maurice C., additional, Hussey, Nigel E., additional, Armstrong, Amelia J., additional, Carlisle, Aaron, additional, Coffey, Daniel M., additional, Gleiss, Adrian C., additional, Huveneers, Charlie, additional, Jacoby, David M. P., additional, Meekan, Mark G., additional, Mourier, Johann, additional, Peel, Lauren R., additional, Abrantes, Kátya, additional, Afonso, André S., additional, Ajemian, Matthew J., additional, Anderson, Brooke N., additional, Anderson, Scot D., additional, Araujo, Gonzalo, additional, Armstrong, Asia O., additional, Bach, Pascal, additional, Barnett, Adam, additional, Bennett, Mike B., additional, Bezerra, Natalia A., additional, Bonfil, Ramon, additional, Boustany, Andre M., additional, Bowlby, Heather D., additional, Branco, Ilka, additional, Braun, Camrin D., additional, Brooks, Edward J., additional, Brown, Judith, additional, Burke, Patrick J., additional, Butcher, Paul, additional, Castleton, Michael, additional, Chapple, Taylor K., additional, Chateau, Olivier, additional, Clarke, Maurice, additional, Coelho, Rui, additional, Cortes, Enric, additional, Couturier, Lydie I. E., additional, Cowley, Paul D., additional, Croll, Donald A., additional, Cuevas, Juan M., additional, Curtis, Tobey H., additional, Dagorn, Laurent, additional, Dale, Jonathan J., additional, Daly, Ryan, additional, Dewar, Heidi, additional, Doherty, Philip D., additional, Domingo, Andrés, additional, Dove, Alistair D. M., additional, Drew, Michael, additional, Dudgeon, Christine L., additional, Duffy, Clinton A. J., additional, Elliott, Riley G., additional, Ellis, Jim R., additional, Erdmann, Mark V., additional, Farrugia, Thomas J., additional, Ferreira, Luciana C., additional, Ferretti, Francesco, additional, Filmalter, John D., additional, Finucci, Brittany, additional, Fischer, Chris, additional, Fitzpatrick, Richard, additional, Forget, Fabien, additional, Forsberg, Kerstin, additional, Francis, Malcolm P., additional, Franks, Bryan R., additional, Gallagher, Austin J., additional, Galvan-Magana, Felipe, additional, García, Mirta L., additional, Gaston, Troy F., additional, Gillanders, Bronwyn M., additional, Gollock, Matthew J., additional, Green, Jonathan R., additional, Green, Sofia, additional, Griffiths, Christopher A., additional, Hammerschlag, Neil, additional, Hasan, Abdi, additional, Hawkes, Lucy A., additional, Hazin, Fabio, additional, Heard, Matthew, additional, Hearn, Alex, additional, Hedges, Kevin J., additional, Henderson, Suzanne M., additional, Holdsworth, John, additional, Holland, Kim N., additional, Howey, Lucy A., additional, Hueter, Robert E., additional, Humphries, Nicholas E., additional, Hutchinson, Melanie, additional, Jaine, Fabrice R. A., additional, Jorgensen, Salvador J., additional, Kanive, Paul E., additional, Labaja, Jessica, additional, Lana, Fernanda O., additional, Lassauce, Hugo, additional, Lipscombe, Rebecca S., additional, Llewellyn, Fiona, additional, Macena, Bruno C. L., additional, Mambrasar, Ronald, additional, McAllister, Jaime D., additional, McCully Phillips, Sophy R., additional, McGregor, Frazer, additional, McMillan, Matthew N., additional, McNaughton, Lianne M., additional, Mendonça, Sibele A., additional, Meyer, Carl G., additional, Meyers, Megan, additional, Mohan, John A., additional, Montgomery, John C., additional, Mucientes, Gonzalo, additional, Musyl, Michael K., additional, Nasby-Lucas, Nicole, additional, Natanson, Lisa J., additional, O’Sullivan, John B., additional, Oliveira, Paulo, additional, Papastamtiou, Yannis P., additional, Patterson, Toby A., additional, Pierce, Simon J., additional, Queiroz, Nuno, additional, Radford, Craig A., additional, Richardson, Andy J., additional, Richardson, Anthony J., additional, Righton, David, additional, Rohner, Christoph A., additional, Royer, Mark A., additional, Saunders, Ryan A., additional, Schaber, Matthias, additional, Schallert, Robert J., additional, Scholl, Michael C., additional, Seitz, Andrew C., additional, Semmens, Jayson M., additional, Setyawan, Edy, additional, Shea, Brendan D., additional, Shidqi, Rafid A., additional, Shillinger, George L., additional, Shipley, Oliver N., additional, Shivji, Mahmood S., additional, Sianipar, Abraham B., additional, Silva, Joana F., additional, Sims, David W., additional, Skomal, Gregory B., additional, Sousa, Lara L., additional, Southall, Emily J., additional, Spaet, Julia L. Y., additional, Stehfest, Kilian M., additional, Stevens, Guy, additional, Stewart, Joshua D., additional, Sulikowski, James A., additional, Syakurachman, Ismail, additional, Thorrold, Simon R., additional, Thums, Michele, additional, Tickler, David, additional, Tolloti, Mariana T., additional, Townsend, Kathy A., additional, Travassos, Paulo, additional, Tyminski, John P., additional, Vaudo, Jeremy J., additional, Veras, Drausio, additional, Wantiez, Laurent, additional, Weber, Sam B., additional, Wells, R.J. David, additional, Weng, Kevin C., additional, Wetherbee, Bradley M., additional, Williamson, Jane E., additional, Witt, Matthew J., additional, Wright, Serena, additional, Zilliacus, Kelly, additional, Block, Barbara A., additional, and Curnick, David J., additional

Published
2022
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6. Coherent assessments of Europe’s marine fishes show regional divergence and megafauna loss

Author

Fernandes, Paul G., Ralph, Gina M., Nieto, Ana, García Criado, Mariana, Vasilakopoulos, Paraskevas, Maravelias, Christos D., Cook, Robin M., Pollom, Riley A., Kovačić, Marcelo, Pollard, David, Farrell, Edward D., Florin, Ann-Britt, Polidoro, Beth A., Lawson, Julia M., Lorance, Pascal, Uiblein, Franz, Craig, Matthew, Allen, David J., Fowler, Sarah L., Walls, Rachel H. L., Comeros-Raynal, Mia T., Harvey, Michael S., Dureuil, Manuel, Biscoito, Manuel, Pollock, Caroline, McCully Phillips, Sophy R., Ellis, Jim R., Papaconstantinou, Constantinos, Soldo, Alen, Keskin, Çetin, Knudsen, Steen Wilhelm, Gil de Sola, Luís, Serena, Fabrizio, Collette, Bruce B., Nedreaas, Kjell, Stump, Emilie, Russell, Barry C., Garcia, Silvia, Afonso, Pedro, Jung, Armelle B. J., Alvarez, Helena, Delgado, João, Dulvy, Nicholas K., and Carpenter, Kent E.

Published
2017
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7. Diving into the vertical dimension of elasmobranch movement ecology

Author

Andrzejaczek, Samantha, Lucas, Tim C.D., Goodman, Maurice C., Hussey, Nigel E., Armstrong, Amelia J., Carlisle, Aaron, Coffey, Daniel M., Gleiss, Adrian C., Huveneers, Charlie, Jacoby, David M. P., Meekan, Mark G., Mourier, Johann, Peel, Lauren R., Abrantes, Kátya, Afonso, André S., Ajemian, Matthew J., Anderson, Brooke N., Anderson, Scot D., Araujo, Gonzalo, Armstrong, Asia O., Bach, Pascal, Barnett, Adam, Bennett, Mike B., Bezerra, Natalia A., Bonfil, Ramon, Boustany, Andre M., Bowlby, Heather D., Branco, Ilka, Braun, Camrin D., Brooks, Edward J., Brown, Judith, Burke, Patrick J., Butcher, Paul A., Castleton, Michael, Chapple, Taylor K., Chateau, Olivier, Clarke, Maurice, Coelho, Rui, Cortes, Enric, Couturier, Lydie I. E., Cowley, Paul D., Croll, Donald A., Cuevas, Juan M., Curtis, Tobey H., Dagorn, Laurent, Dale, Jonathan J., Daly, Ryan, Dewar, Heidi, Doherty, Philip D., Domingo, Andrés, Dove, Alistair D. M., Drew, Michael, Dudgeon, Christine L., Duffy, Clinton A. J., Elliott, Riley G., Ellis, Jim R., Erdmann, Mark V., Farrugia, Thomas J., Ferreira, Luciana C., Ferretti, Francesco, Filmalter, John D., Finucci, Brittany, Fischer, Chris, Fitzpatrick, Richard, Forget, Fabien, Forsberg, Kerstin, Francis, Malcolm P., Franks, Bryan R., Gallagher, Austin J., Galvan-Magana, Felipe, García, Mirta L., Gaston, Troy F., Gillanders, Bronwyn M., Gollock, Matthew J., Green, Jonathan R., Green, Sofia, Griffiths, Christopher A., Hammerschlag, Neil, Hasan, Abdi, Hawkes, Lucy A., Hazin, Fabio, Heard, Matthew, Hearn, Alex, Hedges, Kevin J., Henderson, Suzanne M., Holdsworth, John, Holland, Kim N., Howey, Lucy A., Hueter, Robert E., Humphries, Nicholas E., Hutchinson, Melanie, Jaine, Fabrice R. A., Jorgensen, Salvador J., Kanive, Paul E., Labaja, Jessica, Lana, Fernanda O., Lassauce, Hugo, Lipscombe, Rebecca S., Llewellyn, Fiona, Macena, Bruno C. L., Mambrasar, Ronald, McAllister, Jaime D., McCully Phillips, Sophy R., McGregor, Frazer, McMillan, Matthew N., McNaughton, Lianne M., Mendonça, Sibele A., Meyer, Carl G., Meyers, Megan, Mohan, John A., Montgomery, John C., Mucientes, Gonzalo, Musyl, Michael K., Nasby-Lucas, Nicole, Natanson, Lisa J., O’Sullivan, John B., Oliveira, Paulo, Papastamtiou, Yannis P., Patterson, Toby A., Pierce, Simon J., Queiroz, Nuno, Radford, Craig A., Richardson, Andy J., Richardson, Anthony J., Righton, David, Rohner, Christoph A., Royer, Mark A., Saunders, Ryan A., Schaber, Matthias, Schallert, Robert J., Scholl, Michael C., Seitz, Andrew C., Semmens, Jayson M., Setyawan, Edy, Shea, Brendan D., Shidqi, Rafid A., Shillinger, George L., Shipley, Oliver N., Shivji, Mahmood S., Sianipar, Abraham B., Silva, Joana F., Sims, David W., Skomal, Gregory B., Sousa, Lara L., Southall, Emily J., Spaet, Julia L. Y., Stehfest, Kilian M., Stevens, Guy, Stewart, Joshua D., Sulikowski, James A., Syakurachman, Ismail, Thorrold, Simon R., Thums, Michele, Tickler, David, Tolloti, Mariana T., Townsend, Kathy A., Travassos, Paulo, Tyminski, John P., Vaudo, Jeremy J., Veras, Drausio, Wantiez, Laurent, Weber, Sam B., Wells, R.J. David, Weng, Kevin C., Wetherbee, Bradley M., Williamson, Jane E., Witt, Matthew J., Wright, Serena, Zilliacus, Kelly, Block, Barbara A., Curnick, David J., Andrzejaczek, Samantha, Lucas, Tim C.D., Goodman, Maurice C., Hussey, Nigel E., Armstrong, Amelia J., Carlisle, Aaron, Coffey, Daniel M., Gleiss, Adrian C., Huveneers, Charlie, Jacoby, David M. P., Meekan, Mark G., Mourier, Johann, Peel, Lauren R., Abrantes, Kátya, Afonso, André S., Ajemian, Matthew J., Anderson, Brooke N., Anderson, Scot D., Araujo, Gonzalo, Armstrong, Asia O., Bach, Pascal, Barnett, Adam, Bennett, Mike B., Bezerra, Natalia A., Bonfil, Ramon, Boustany, Andre M., Bowlby, Heather D., Branco, Ilka, Braun, Camrin D., Brooks, Edward J., Brown, Judith, Burke, Patrick J., Butcher, Paul A., Castleton, Michael, Chapple, Taylor K., Chateau, Olivier, Clarke, Maurice, Coelho, Rui, Cortes, Enric, Couturier, Lydie I. E., Cowley, Paul D., Croll, Donald A., Cuevas, Juan M., Curtis, Tobey H., Dagorn, Laurent, Dale, Jonathan J., Daly, Ryan, Dewar, Heidi, Doherty, Philip D., Domingo, Andrés, Dove, Alistair D. M., Drew, Michael, Dudgeon, Christine L., Duffy, Clinton A. J., Elliott, Riley G., Ellis, Jim R., Erdmann, Mark V., Farrugia, Thomas J., Ferreira, Luciana C., Ferretti, Francesco, Filmalter, John D., Finucci, Brittany, Fischer, Chris, Fitzpatrick, Richard, Forget, Fabien, Forsberg, Kerstin, Francis, Malcolm P., Franks, Bryan R., Gallagher, Austin J., Galvan-Magana, Felipe, García, Mirta L., Gaston, Troy F., Gillanders, Bronwyn M., Gollock, Matthew J., Green, Jonathan R., Green, Sofia, Griffiths, Christopher A., Hammerschlag, Neil, Hasan, Abdi, Hawkes, Lucy A., Hazin, Fabio, Heard, Matthew, Hearn, Alex, Hedges, Kevin J., Henderson, Suzanne M., Holdsworth, John, Holland, Kim N., Howey, Lucy A., Hueter, Robert E., Humphries, Nicholas E., Hutchinson, Melanie, Jaine, Fabrice R. A., Jorgensen, Salvador J., Kanive, Paul E., Labaja, Jessica, Lana, Fernanda O., Lassauce, Hugo, Lipscombe, Rebecca S., Llewellyn, Fiona, Macena, Bruno C. L., Mambrasar, Ronald, McAllister, Jaime D., McCully Phillips, Sophy R., McGregor, Frazer, McMillan, Matthew N., McNaughton, Lianne M., Mendonça, Sibele A., Meyer, Carl G., Meyers, Megan, Mohan, John A., Montgomery, John C., Mucientes, Gonzalo, Musyl, Michael K., Nasby-Lucas, Nicole, Natanson, Lisa J., O’Sullivan, John B., Oliveira, Paulo, Papastamtiou, Yannis P., Patterson, Toby A., Pierce, Simon J., Queiroz, Nuno, Radford, Craig A., Richardson, Andy J., Richardson, Anthony J., Righton, David, Rohner, Christoph A., Royer, Mark A., Saunders, Ryan A., Schaber, Matthias, Schallert, Robert J., Scholl, Michael C., Seitz, Andrew C., Semmens, Jayson M., Setyawan, Edy, Shea, Brendan D., Shidqi, Rafid A., Shillinger, George L., Shipley, Oliver N., Shivji, Mahmood S., Sianipar, Abraham B., Silva, Joana F., Sims, David W., Skomal, Gregory B., Sousa, Lara L., Southall, Emily J., Spaet, Julia L. Y., Stehfest, Kilian M., Stevens, Guy, Stewart, Joshua D., Sulikowski, James A., Syakurachman, Ismail, Thorrold, Simon R., Thums, Michele, Tickler, David, Tolloti, Mariana T., Townsend, Kathy A., Travassos, Paulo, Tyminski, John P., Vaudo, Jeremy J., Veras, Drausio, Wantiez, Laurent, Weber, Sam B., Wells, R.J. David, Weng, Kevin C., Wetherbee, Bradley M., Williamson, Jane E., Witt, Matthew J., Wright, Serena, Zilliacus, Kelly, Block, Barbara A., and Curnick, David J.

Abstract

Knowledge of the three-dimensional movement patterns of elasmobranchs is vital to understand their ecological roles and exposure to anthropogenic pressures. To date, comparative studies among species at global scales have mostly focused on horizontal movements. Our study addresses the knowledge gap of vertical movements by compiling the first global synthesis of vertical habitat use by elasmobranchs from data obtained by deployment of 989 biotelemetry tags on 38 elasmobranch species. Elasmobranchs displayed high intra- and interspecific variability in vertical movement patterns. Substantial vertical overlap was observed for many epipelagic elasmobranchs, indicating an increased likelihood to display spatial overlap, biologically interact, and share similar risk to anthropogenic threats that vary on a vertical gradient. We highlight the critical next steps toward incorporating vertical movement into global management and monitoring strategies for elasmobranchs, emphasizing the need to address geographic and taxonomic biases in deployments and to concurrently consider both horizontal and vertical movements. Vertical habitat use by sharks, rays, and skates varies globally and has implications for their conservation and management.

Published
2022

11. Informing CITES Parties: Strengthening science‐based decision‐making when listing marine species

Author

Friedman, Kim, primary, Braccini, Matias, additional, Bjerregaard‐Walsh, Matthew, additional, Bonfil, Ramón, additional, Bradshaw, Corey J. A., additional, Brouwer, Stephen, additional, Campbell, Ian, additional, Coelho, Rui, additional, Cortés, Enric, additional, Dimmlich, Wetjens, additional, Frisk, Michael G., additional, Kingma, Irene, additional, McCully Phillips, Sophy R., additional, O'Criodain, Colman, additional, Parker, Denham, additional, Shephard, Samuel, additional, Tovar‐Ávila, Javier, additional, and Yokawa, Kotaro, additional

Published
2019
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14. Diet composition of starry smooth‐hound Mustelus asterias and methodological considerations for assessing the trophic level of predatory fish.

Author

McCully Phillips, Sophy R., Grant, Alastair, and Ellis, Jim R.

Subjects
*FOOD chains, *HERMIT crabs, *CRUSTACEA, *FISH nutrition, *GASTROINTESTINAL contents, *PORTUNIDAE, *SIZE of fishes, *FORAGING behavior
Abstract

The stomach contents of 640 starry smooth‐hound Mustelus asterias from the north‐east Atlantic were examined. The diet was dominated by crustaceans (98.8% percentage of index of relative importance, %IRI), with the two main prey species being hermit crab Pagurus bernhardus (34% IRI) and flying crab Liocarcinus holsatus (15% IRI). Ontogenetic dietary preferences showed that smaller individuals [20–69 cm total length (LT) n = 283] had a significantly lower diversity of prey than larger individuals (70–124 cm LT, n = 348); however, 18 prey species were found exclusively in smaller individuals and eight prey taxa were found exclusively in larger individuals. Larger commercially important brachyurans such as edible crab Cancer pagurus and velvet swimming crab Necora puber were more prevalent in the diet of larger individuals. Specimens from the North Sea ecoregion had a lower diversity of prey types for a given sample size than fish from the Celtic Seas ecoregion. Whilst cumulative prey curves did not reach an asymptote, this was primarily due to the high taxonomic resolution utilized and 95% of the diet was described by just seven crustacean taxa. The trophic level (TL) was calculated as 4.34 when species‐level prey categories were used. This fine‐scale taxonomic resolution resulted in a TL estimate close to a whole level above that estimated using wider taxonomic groupings. This large bias has important methodological implications for TL studies based on categorized prey data, particularly those of predatory fish. [ABSTRACT FROM AUTHOR]

Published
2020
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15. Informing CITES Parties: Strengthening science‐based decision‐making when listing marine species.

Author

Friedman, Kim, Braccini, Matias, Bjerregaard‐Walsh, Matthew, Bonfil, Ramón, Bradshaw, Corey J. A., Brouwer, Stephen, Campbell, Ian, Coelho, Rui, Cortés, Enric, Dimmlich, Wetjens, Frisk, Michael G., Kingma, Irene, McCully Phillips, Sophy R., O'Criodain, Colman, Parker, Denham, Shephard, Samuel, Tovar‐Ávila, Javier, and Yokawa, Kotaro

Subjects
ENDANGERED species, NATURE conservation, INTERNATIONAL trade, SPECIES
Abstract

International trade in vulnerable marine species is regulated once they are listed in CITES Appendices (the Convention on International Trade in Endangered Species of Wild Fauna and Flora). Parties to the Convention submit proposal(s) 150 days prior to the CITES Conference for voting on the inclusion of new species in Appendices I and II, making a case for why CITES listing criteria are met in each case. Before the vote, Parties receive advice from (a) the Food and Agriculture Organization of the United Nations, (b) the International Union for Conservation of Nature—TRAFFIC and (c) the CITES Secretariat, among others. This paper offers an expert review of listing processes, which are the subject of much debate in fishery and environment‐protection communities, looking at two specific cases: silky shark (Carcharhinus falciformis, Carcharhinidae) and bigeye thresher shark (Alopias superciliosus, Alopiidae). The reviewers determine that the evidence made available to voting Parties is substantial, but suffers from non‐standard presentation across assessments. The best available data are not always presented or described transparently in relation to CITES criteria. An extension of the assessment period, as well as the opportunity to refute evidence, has been suggested as ways to support more informed and effective decision‐making by CITES Parties, whose composition of delegations varies greatly in their experience of marine species management and trade. Experts welcomed a greater coherence of advice between fishery and non‐fishery sources in the long term, and proposed a range of suggested improvements for the delivery of information and advice to CITES Parties. [ABSTRACT FROM AUTHOR]

Published
2020
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16. Diving into the vertical dimension of elasmobranch movement ecology

Author

Samantha Andrzejaczek, Tim C.D. Lucas, Maurice C. Goodman, Nigel E. Hussey, Amelia J. Armstrong, Aaron Carlisle, Daniel M. Coffey, Adrian C. Gleiss, Charlie Huveneers, David M. P. Jacoby, Mark G. Meekan, Johann Mourier, Lauren R. Peel, Kátya Abrantes, André S. Afonso, Matthew J. Ajemian, Brooke N. Anderson, Scot D. Anderson, Gonzalo Araujo, Asia O. Armstrong, Pascal Bach, Adam Barnett, Mike B. Bennett, Natalia A. Bezerra, Ramon Bonfil, Andre M. Boustany, Heather D. Bowlby, Ilka Branco, Camrin D. Braun, Edward J. Brooks, Judith Brown, Patrick J. Burke, Paul Butcher, Michael Castleton, Taylor K. Chapple, Olivier Chateau, Maurice Clarke, Rui Coelho, Enric Cortes, Lydie I. E. Couturier, Paul D. Cowley, Donald A. Croll, Juan M. Cuevas, Tobey H. Curtis, Laurent Dagorn, Jonathan J. Dale, Ryan Daly, Heidi Dewar, Philip D. Doherty, Andrés Domingo, Alistair D. M. Dove, Michael Drew, Christine L. Dudgeon, Clinton A. J. Duffy, Riley G. Elliott, Jim R. Ellis, Mark V. Erdmann, Thomas J. Farrugia, Luciana C. Ferreira, Francesco Ferretti, John D. Filmalter, Brittany Finucci, Chris Fischer, Richard Fitzpatrick, Fabien Forget, Kerstin Forsberg, Malcolm P. Francis, Bryan R. Franks, Austin J. Gallagher, Felipe Galvan-Magana, Mirta L. García, Troy F. Gaston, Bronwyn M. Gillanders, Matthew J. Gollock, Jonathan R. Green, Sofia Green, Christopher A. Griffiths, Neil Hammerschlag, Abdi Hasan, Lucy A. Hawkes, Fabio Hazin, Matthew Heard, Alex Hearn, Kevin J. Hedges, Suzanne M. Henderson, John Holdsworth, Kim N. Holland, Lucy A. Howey, Robert E. Hueter, Nicholas E. Humphries, Melanie Hutchinson, Fabrice R. A. Jaine, Salvador J. Jorgensen, Paul E. Kanive, Jessica Labaja, Fernanda O. Lana, Hugo Lassauce, Rebecca S. Lipscombe, Fiona Llewellyn, Bruno C. L. Macena, Ronald Mambrasar, Jaime D. McAllister, Sophy R. McCully Phillips, Frazer McGregor, Matthew N. McMillan, Lianne M. McNaughton, Sibele A. Mendonça, Carl G. Meyer, Megan Meyers, John A. Mohan, John C. Montgomery, Gonzalo Mucientes, Michael K. Musyl, Nicole Nasby-Lucas, Lisa J. Natanson, John B. O’Sullivan, Paulo Oliveira, Yannis P. Papastamtiou, Toby A. Patterson, Simon J. Pierce, Nuno Queiroz, Craig A. Radford, Andy J. Richardson, Anthony J. Richardson, David Righton, Christoph A. Rohner, Mark A. Royer, Ryan A. Saunders, Matthias Schaber, Robert J. Schallert, Michael C. Scholl, Andrew C. Seitz, Jayson M. Semmens, Edy Setyawan, Brendan D. Shea, Rafid A. Shidqi, George L. Shillinger, Oliver N. Shipley, Mahmood S. Shivji, Abraham B. Sianipar, Joana F. Silva, David W. Sims, Gregory B. Skomal, Lara L. Sousa, Emily J. Southall, Julia L. Y. Spaet, Kilian M. Stehfest, Guy Stevens, Joshua D. Stewart, James A. Sulikowski, Ismail Syakurachman, Simon R. Thorrold, Michele Thums, David Tickler, Mariana T. Tolloti, Kathy A. Townsend, Paulo Travassos, John P. Tyminski, Jeremy J. Vaudo, Drausio Veras, Laurent Wantiez, Sam B. Weber, R.J. David Wells, Kevin C. Weng, Bradley M. Wetherbee, Jane E. Williamson, Matthew J. Witt, Serena Wright, Kelly Zilliacus, Barbara A. Block, David J. Curnick, Andrzejaczek, Samantha [0000-0002-9929-7312], Lucas, Tim CD [0000-0003-4694-8107], Goodman, Maurice C [0000-0002-6874-2313], Hussey, Nigel E [0000-0002-9050-6077], Armstrong, Amelia J [0000-0001-8103-4314], Carlisle, Aaron [0000-0003-0796-6564], Coffey, Daniel M [0000-0001-5983-0146], Huveneers, Charlie [0000-0001-8937-1358], Jacoby, David MP [0000-0003-2729-3811], Meekan, Mark G [0000-0002-3067-9427], Mourier, Johann [0000-0001-9019-1717], Peel, Lauren R [0000-0001-6960-5663], Abrantes, Kátya [0000-0001-7430-8428], Afonso, André S [0000-0001-9129-278X], Ajemian, Matthew J [0000-0002-2725-4030], Anderson, Brooke N [0000-0003-4299-3496], Araujo, Gonzalo [0000-0002-4708-3638], Armstrong, Asia O [0000-0002-9307-0598], Barnett, Adam [0000-0001-7430-8428], Bennett, Mike B [0000-0001-8051-0040], Bezerra, Natalia A [0000-0002-4203-8408], Bonfil, Ramon [0000-0002-5753-464X], Boustany, Andre M [0000-0001-5501-7190], Bowlby, Heather D [0000-0002-2532-3725], Branco, Ilka [0000-0001-8136-2596], Braun, Camrin D [0000-0002-9317-9489], Brooks, Edward J [0000-0001-5206-7133], Burke, Patrick J [0000-0002-7217-0215], Butcher, Paul [0000-0001-7338-6037], Castleton, Michael [0000-0001-9639-6967], Chapple, Taylor K [0000-0002-0357-0223], Chateau, Olivier [0000-0003-1153-6284], Coelho, Rui [0000-0003-3813-5157], Cortes, Enric [0000-0001-6001-2482], Couturier, Lydie IE [0000-0002-3885-3397], Cuevas, Juan M [0000-0003-0086-5963], Curtis, Tobey H [0000-0003-0164-7335], Dale, Jonathan J [0000-0001-8565-3841], Daly, Ryan [0000-0002-4409-6951], Dewar, Heidi [0000-0002-8202-1387], Doherty, Philip D [0000-0001-7561-3731], Domingo, Andrés [0000-0002-1793-7663], Dove, Alistair DM [0000-0003-3239-4772], Drew, Michael [0000-0002-5109-7792], Dudgeon, Christine L [0000-0001-5059-7886], Duffy, Clinton AJ [0000-0002-3352-1609], Elliott, Riley G [0000-0003-0234-5953], Erdmann, Mark V [0000-0002-3644-8347], Farrugia, Thomas J [0000-0001-9052-8826], Ferreira, Luciana C 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Fernanda O [0000-0001-7235-069X], Lassauce, Hugo [0000-0001-9636-6522], Lipscombe, Rebecca S [0000-0001-9602-643X], Llewellyn, Fiona [0000-0003-4309-8311], Macena, Bruno CL [0000-0001-5010-8560], McCully Phillips, Sophy R [0000-0003-3110-5916], McGregor, Frazer [0000-0002-7441-4404], McMillan, Matthew N [0000-0001-6348-184X], Mendonça, Sibele A [0000-0002-1981-5950], Mohan, John A [0000-0002-2758-163X], Mucientes, Gonzalo [0000-0001-6650-3020], Musyl, Michael K [0000-0003-4719-9259], Nasby-Lucas, Nicole [0000-0001-8355-9392], Natanson, Lisa J [0000-0002-2903-6037], O'Sullivan, John B [0000-0002-1689-2141], Oliveira, Paulo [0000-0001-7697-2111], Papastamtiou, Yannis P [0000-0002-6091-6841], Patterson, Toby A [0000-0002-7150-9205], Pierce, Simon J [0000-0002-9375-5175], Queiroz, Nuno [0000-0002-3860-7356], Radford, Craig A [0000-0001-7949-9497], Richardson, Andy J [0000-0003-2598-5080], Richardson, Anthony J [0000-0002-9289-7366], Righton, David [0000-0001-8643-3672], Rohner, Christoph A [0000-0001-8760-8972], Royer, Mark A [0000-0002-6938-7536], Schaber, Matthias [0000-0003-1032-4626], Schallert, Robert J [0000-0002-3584-2668], Scholl, Michael C [0000-0002-6014-1759], Semmens, Jayson M [0000-0003-1742-6692], Setyawan, Edy [0000-0001-6629-5997], Shea, Brendan D [0000-0001-7771-0586], Shillinger, George L [0000-0001-5168-4551], Shipley, Oliver N [0000-0001-5163-3471], Sianipar, Abraham B [0000-0003-4049-3893], Silva, Joana F [0000-0002-2897-1410], Sims, David W [0000-0002-0916-7363], Sousa, Lara L [0000-0002-4392-3572], Southall, Emily J [0000-0001-7246-278X], Spaet, Julia LY [0000-0001-8703-1472], Stevens, Guy [0000-0002-2056-9830], Sulikowski, James A [0000-0002-3646-5200], Thums, Michele [0000-0002-8669-8440], Tickler, David [0000-0001-7722-0771], Tolloti, Mariana T [0000-0001-6895-2479], Townsend, Kathy A [0000-0002-2581-2158], Travassos, Paulo [0000-0001-8667-5292], Tyminski, John P [0000-0001-8251-7385], Vaudo, Jeremy J [0000-0002-6826-3822], Veras, Drausio [0000-0001-5627-6848], Wantiez, Laurent [0000-0001-5024-2057], Weber, Sam B [0000-0003-1447-4082], Wells, RJ David [0000-0002-1306-0614], Weng, Kevin C [0000-0002-7069-7152], Wetherbee, Bradley M [0000-0002-3753-8950], Williamson, Jane E [0000-0003-3627-4508], Witt, Matthew J [0000-0002-9498-5378], Zilliacus, Kelly [0000-0001-9166-5611], Block, Barbara A [0000-0001-5181-3616], Curnick, David J [0000-0002-3093-1282], Apollo - University of Cambridge Repository, Zoological Society of London - ZSL (UNITED KINGDOM), Centre de recherches insulaires et observatoire de l'environnement (CRIOBE), Université de Perpignan Via Domitia (UPVD)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), MARine Biodiversity Exploitation and Conservation (UMR MARBEC), and Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)

Subjects
Multidisciplinary, [SDV]Life Sciences [q-bio], Violacea Bonaparte, 3103 Ecology, Pelagic stingray, Scalloped hammerhead shark, 41 Environmental Sciences, Western North Pacific, Reproductive-biology, Habitat Use, Carcharhinus-falciformis, Galeocerdo-cuvier, Sexual segregation, Sphyna-lewini, 31 Biological Sciences
Abstract

20 pages, 3 tables, 5 figures.-- Samantha Andrzejaczek ... et al.-- Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC), Knowledge of the three-dimensional movement patterns of elasmobranchs is vital to understand their ecological roles and exposure to anthropogenic pressures. To date, comparative studies among species at global scales have mostly focused on horizontal movements. Our study addresses the knowledge gap of vertical movements by compiling the first global synthesis of vertical habitat use by elasmobranchs from data obtained by deployment of 989 biotelemetry tags on 38 elasmobranch species. Elasmobranchs displayed high intra- and interspecific variability in vertical movement patterns. Substantial vertical overlap was observed for many epipelagic elasmobranchs, indicating an increased likelihood to display spatial overlap, biologically interact, and share similar risk to anthropogenic threats that vary on a vertical gradient. We highlight the critical next steps toward incorporating vertical movement into global management and monitoring strategies for elasmobranchs, emphasizing the need to address geographic and taxonomic biases in deployments and to concurrently consider both horizontal and vertical movements, Data analysis was funded by the Bertarelli Foundation through the Marine Science program through grants to D.J.C., B.A.B., and S.A. D.J.C. is also funded through Research England, UK. S.A. and B.A.B. thank the Moore Foundation and the Packard Foundation. F.G.-M. thanks the Instituto Politecnico Nacional for fellowships (COFAA, EDI). S.B.W. thanks funding from the Darwin Initiative (DPLUS046). A.D.M.D. acknowledges funding from the Research and Conservation Budget at Georgia Aquarium, including philanthropic gifts from several anonymous donors. K.F. acknowledges funding from the Rolex Awards for Enterprise and the Whitley Fund for Nature

Published
2022
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