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Provedor de dados:  ArchiMer
País:  France
Título:  “Too Big To Ignore”: A feasibility analysis of detecting fishing events in Gabonese small-scale fisheries
Autores:  Cardiec, Floriane
Bertrand, Sophie
Witt, Matthew J.
Metcalfe, Kristian
Godley, Brendan J.
Mcclellan, Catherine
Vilela, Raul
Parnell, Richard J.
Le Loch, Francois
Data:  2020-06
Ano:  2020
Resumo:  In many developing countries, small-scale fisheries provide employment and important food security for local populations. To support resource management, the description of the spatiotemporal extent of fisheries is necessary, but often poorly understood due to the diffuse nature of effort, operated from numerous small wooden vessels. Here, in Gabon, Central Africa, we applied Hidden Markov Models to detect fishing patterns in seven different fisheries (with different gears) from GPS data. Models were compared to information collected by on-board observers (7 trips) and, at a larger scale, to a visual interpretation method (99 trips). Models utilizing different sampling resolutions of GPS acquisition were also tested. Model prediction accuracy was high with GPS data sampling rates up to three minutes apart. The minor loss of accuracy linked to model classification is largely compensated by the savings in time required for analysis, especially in a context of nations or organizations with limited resources. This method could be applied to larger datasets at a national or international scale to identify and more adequately manage fishing effort.
Tipo:  Text
Idioma:  Inglês

Editor:  Public Library of Science (PLoS)
Formato:  application/pdf
Fonte:  Plos One (1932-6203) (Public Library of Science (PLoS)), 2020-06 , Vol. 15 , N. 6 , P. e0234091 (19p.)
Direitos:  info:eu-repo/semantics/openAccess

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