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4 results on '"Verhage, Sebastian"'

1. Going the extra mile: Ground-based monitoring of olive ridley turtles reveals Gabon hosts the largest rookery in the Atlantic

Author

Metcalfe, Kristian, primary, Agamboué, Pierre Didier, additional, Augowet, Eric, additional, Boussamba, Francois, additional, Cardiec, Floriane, additional, Fay, J. Michael, additional, Formia, Angela, additional, Kema Kema, Judicael Régis, additional, Kouerey, Carmen, additional, Mabert, Brice Didier Koumba, additional, Maxwell, Sara M., additional, Minton, Gianna, additional, Mounguengui Mounguengui, Gil Avery, additional, Moussounda, Carine, additional, Moukoumou, Narcisse, additional, Manfoumbi, Jean Churley, additional, Nguema, Anicet Megne, additional, Nzegoue, Jacob, additional, Parnell, Richard J., additional, du Plessis, Philippe, additional, Sounguet, Guy-Philippe, additional, Tilley, Dominic, additional, Verhage, Sebastian, additional, Viljoen, Wynand, additional, White, Lee, additional, Witt, Matthew J., additional, and Godley, Brendan J., additional

Published
2015
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2. Tracking leatherback turtles from the world's largest rookery: assessing threats across the South Atlantic

Author

Witt, Matthew J., primary, Augowet Bonguno, Eric, additional, Broderick, Annette C., additional, Coyne, Michael S., additional, Formia, Angela, additional, Gibudi, Alain, additional, Mounguengui Mounguengui, Gil Avery, additional, Moussounda, Carine, additional, NSafou, Monique, additional, Nougessono, Solange, additional, Parnell, Richard J., additional, Sounguet, Guy-Philippe, additional, Verhage, Sebastian, additional, and Godley, Brendan J., additional

Published
2011
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3. Atlantic Leatherback Migratory Paths and Temporary Residence Areas

Author

Fossette, Sabrina, primary, Girard, Charlotte, additional, López-Mendilaharsu, Milagros, additional, Miller, Philip, additional, Domingo, Andrés, additional, Evans, Daniel, additional, Kelle, Laurent, additional, Plot, Virginie, additional, Prosdocimi, Laura, additional, Verhage, Sebastian, additional, Gaspar, Philippe, additional, and Georges, Jean-Yves, additional

Published
2010
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4. Tracking leatherback turtles from the world's largest rookery: assessing threats across the South Atlantic.

Author

Witt MJ, Augowet Bonguno E, Broderick AC, Coyne MS, Formia A, Gibudi A, Mounguengui Mounguengui GA, Moussounda C, NSafou M, Nougessono S, Parnell RJ, Sounguet GP, Verhage S, and Godley BJ

Subjects
Animals, Atlantic Ocean, Chlorophyll analysis, Conservation of Natural Resources statistics & numerical data, Female, Seawater chemistry, Telemetry, Animal Migration physiology, Conservation of Natural Resources methods, Demography, Ecosystem, Fisheries, Turtles physiology
Abstract

Despite extensive work carried out on leatherback turtles (Dermochelys coriacea) in the North Atlantic and Indo-Pacific, very little is known of the at-sea distribution of this species in the South Atlantic, where the world's largest population nests in Gabon (central Africa). This paucity of data is of marked concern given the pace of industrialization in fisheries with demonstrable marine turtle bycatch in African/Latin American waters. We tracked the movements of 25 adult female leatherback turtles obtaining a range of fundamental and applied insights, including indications for methodological advancement. Individuals could be assigned to one of three dispersal strategies, moving to (i) habitats of the equatorial Atlantic, (ii) temperate habitats off South America or (iii) temperate habitats off southern Africa. While occupying regions with high surface chlorophyll concentrations, these strategies exposed turtles to some of the world's highest levels of longline fishing effort, in addition to areas with coastal gillnet fisheries. Satellite tracking highlighted that at least 11 nations should be involved in the conservation of this species in addition to those with distant fishing fleets. The majority of tracking days were, however, spent in the high seas, where effective implementation of conservation efforts is complex to achieve.

Published
2011
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