Ecology and behavior of tuna and non-tuna species at drifting fish aggregating devices (DFADs) in the Indian Ocean using fishers'echo-sounder buoys.

El contenido de los capítulos 1,2,3,4 y 5 están sujetos a confidencialidad. 134 p.

Detalles Bibliográficos
Autor: Orúe Montaner, Blanca
Tipo de recurso: tesis doctoral
Fecha de publicación:2019
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/35203
Acceso en línea:http://hdl.handle.net/10810/35203
Access Level:acceso abierto
Palabra clave:animal ecology
biological oceanography
marine zoology
ecología animal
oceanografía biológica
zoología marina
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spelling Ecology and behavior of tuna and non-tuna species at drifting fish aggregating devices (DFADs) in the Indian Ocean using fishers'echo-sounder buoys.Orúe Montaner, Blancaanimal ecologybiological oceanographymarine zoologyecología animaloceanografía biológicazoología marinaEl contenido de los capítulos 1,2,3,4 y 5 están sujetos a confidencialidad. 134 p.Around 65% of tuna purse seine landings are taken using drifting Fish Aggregating Devices (DFADs). DFADs, constructed and deployed by fishers to increase their catches, aggregate the three main tropical tuna species, together with some non-target species. Tropical tuna purse seiner fisheries have increased the use of DFADs in the last 20 years, generating a need for knowledge on DFADs fisheries which has not improved at the same pace as its use. Understanding their impacts on the ecosystem and the ecology and behavior of marine species associated with floating objects, with the aim of providing the best scientific advice in support of the management of tropical tuna species is, thus, needed. However, studies related to DFADs are quite limited, due basically to the great economic and human cost involved in the research of the drifting objects, as they are very temporary in time and space. Currently, DFADs are equipped with satellite linked echo-sounder buoys, which are continuously streaming information about the rough estimate of the biomass of tuna and non-tuna aggregations under the DFADs along its trajectory, almost in real time representing a powerful tool for the study of pelagic ecosystems. This thesis presents scientific research results about the aggregation process, spatio-temporal distribution and environmental preferences of species associated with DFADs in the Indian Ocean using acoustic data provided by fishers¿ echo-sounder buoys. These findings represent a significant advance in the understanding of ecology and behavior of species associated to DFADs and have important implications for the definition of more efficient management approaches of its fishery.Azti TecnaliaSoto López, ManuelMoreno Arriola, GalaMurua Auricenea, Hilario2019201920192019info:eu-repo/semantics/doctoralThesisapplication/pdfapplication/pdfhttp://hdl.handle.net/10810/35203reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/semantics/openAccess(c)21019 BLANCA ORUE MONTANERoai:addi.ehu.eus:10810/352032026-06-18T09:23:17Z
dc.title.none.fl_str_mv Ecology and behavior of tuna and non-tuna species at drifting fish aggregating devices (DFADs) in the Indian Ocean using fishers'echo-sounder buoys.
title Ecology and behavior of tuna and non-tuna species at drifting fish aggregating devices (DFADs) in the Indian Ocean using fishers'echo-sounder buoys.
spellingShingle Ecology and behavior of tuna and non-tuna species at drifting fish aggregating devices (DFADs) in the Indian Ocean using fishers'echo-sounder buoys.
Orúe Montaner, Blanca
animal ecology
biological oceanography
marine zoology
ecología animal
oceanografía biológica
zoología marina
title_short Ecology and behavior of tuna and non-tuna species at drifting fish aggregating devices (DFADs) in the Indian Ocean using fishers'echo-sounder buoys.
title_full Ecology and behavior of tuna and non-tuna species at drifting fish aggregating devices (DFADs) in the Indian Ocean using fishers'echo-sounder buoys.
title_fullStr Ecology and behavior of tuna and non-tuna species at drifting fish aggregating devices (DFADs) in the Indian Ocean using fishers'echo-sounder buoys.
title_full_unstemmed Ecology and behavior of tuna and non-tuna species at drifting fish aggregating devices (DFADs) in the Indian Ocean using fishers'echo-sounder buoys.
title_sort Ecology and behavior of tuna and non-tuna species at drifting fish aggregating devices (DFADs) in the Indian Ocean using fishers'echo-sounder buoys.
dc.creator.none.fl_str_mv Orúe Montaner, Blanca
author Orúe Montaner, Blanca
author_facet Orúe Montaner, Blanca
author_role author
dc.contributor.none.fl_str_mv Soto López, Manuel
Moreno Arriola, Gala
Murua Auricenea, Hilario
dc.subject.none.fl_str_mv animal ecology
biological oceanography
marine zoology
ecología animal
oceanografía biológica
zoología marina
topic animal ecology
biological oceanography
marine zoology
ecología animal
oceanografía biológica
zoología marina
description El contenido de los capítulos 1,2,3,4 y 5 están sujetos a confidencialidad. 134 p.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/doctoralThesis
format doctoralThesis
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/35203
url http://hdl.handle.net/10810/35203
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
(c)21019 BLANCA ORUE MONTANER
eu_rights_str_mv openAccess
rights_invalid_str_mv (c)21019 BLANCA ORUE MONTANER
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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